JP7364118B2 - container - Google Patents

Description

The present disclosure relates to containers with RFID functionality. In particular, the present disclosure relates to a container with an RFID function that utilizes RFID (Radio Frequency Identification) technology that performs contactless data communication using an induced electromagnetic field or radio waves.

2. Description of the Related Art Conventionally, it has been considered to manage products inside a container by attaching an RFID tag, which is a wireless communication device, to the container. In an RFID tag, an RFIC (Radio-Frequency Integrated Circuit) element and a metal material such as an antenna pattern are formed on an insulating substrate such as a paper material or a resin material. However, if a metal film is formed on the outer surface of the container, the RFID tag is affected and communication becomes impossible.

In the container with an RFID tag as described above, Patent Document 1 proposes a configuration in which an RFID tag that can be applied to a metal formed in a part of the container is provided so as not to impair the design.

International Publication No. 2019-039484

BACKGROUND ART Conventionally, there have been containers in which a lid having a metal film is attached to a main body for accommodating contents. In such containers, a metal film is formed on the lid. Since the RFID tag disclosed in Patent Document 1 has an RFIC chip and an antenna pattern, it cannot be placed on the lid, and if placed on the main body, the design of the main body will deteriorate. Even in containers in which a lid having a metal film is attached to a main body for accommodating contents, there is a need for a container with an RFID function that further suppresses reduction in design freedom.

The present disclosure provides a container with an RFID function that can reduce the possibility that an RFID module will mix into the contents while suppressing deterioration of the design in a container in which a lid having a metal film is attached to a main body that accommodates the contents. provide.

A container with an RFID function according to an aspect of the present disclosure includes: an electrically insulating main body having a storage space for contents; a lid including a metal film and attached to the main body so as to cover an opening of the storage space; and an RFID module having first and second electrodes attached to the main body or the lid so as to be outside the opening of the space and coupled to the metal film.

According to an aspect of the present disclosure, in a container in which a lid having a metal film is attached to a main body that accommodates contents, it is possible to reduce the possibility that an RFID module will mix into the contents while suppressing deterioration in design.

An exploded perspective view of a configuration example of a container with an RFID function according to Embodiment 1 Bottom view of the lid of the container with RFID function in Figure 1 Schematic diagram showing a state in which containers 100 with an RFID function are stacked (a) is a plan view of a configuration example of the RFID module of the container with RFID function in FIG. 1, and (b) is a bottom view of the configuration example of the RFID module. Cross-sectional view taken along line XX in Figure 2 Cross-sectional view taken along the Y-Y line in Figure 4(a) A circuit diagram of an example of the circuit configuration of the container with RFID function in Figure 1 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 1 of Embodiment 1 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 2 of Embodiment 1 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 3 of Embodiment 1 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 4 of Embodiment 1 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification Example 5 of Embodiment 1 An explanatory diagram of the first step of an example of the lid manufacturing method in FIG. 12 An explanatory diagram of the second step of an example of the lid manufacturing method in FIG. 12 An explanatory diagram of the third step of an example of the lid manufacturing method in FIG. 12 Exploded perspective view of a configuration example of a container with an RFID function according to Embodiment 2 Bottom view of the lid of the container with RFID function in Figure 16 Bottom view of a configuration example of a lid of a container with an RFID function according to a modified example of Embodiment 2 Exploded perspective view of a configuration example of a container with an RFID function according to Embodiment 3 Bottom view of the lid of the container with RFID function in Figure 19 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 1 of Embodiment 3 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 2 of Embodiment 3 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 3 of Embodiment 3 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 4 of Embodiment 3 An explanatory diagram of an example of the lid manufacturing method in FIG. 24 Exploded perspective view of a configuration example of a container with an RFID function according to Embodiment 4 A plan view of an example of the structure of the lid of the container with RFID function in FIG. 26 Exploded perspective view of a configuration example of a container with an RFID function according to Embodiment 5 Bottom view of the main body of the container with RFID function in Figure 28 A perspective view of a configuration example of a container with an RFID function according to Embodiment 6 A bottom view of an example of the structure of the lid in the container with an RFID function in FIG. 30 A perspective view showing a state in which the lid is peeled off from the main body of the container with an RFID function in FIG. 30 Bottom view of the lid peeled off from the main body of the container with RFID function in Figure 30 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 1 of Embodiment 6 Bottom view of the lid peeled off from the main body in Modification 1 of Embodiment 6 Bottom view of a configuration example of a lid of a container with an RFID function according to Modification 2 of Embodiment 6 Bottom view of the lid peeled off from the main body in Modification 2 of Embodiment 6 A perspective view of a configuration example of a container with an RFID function according to Embodiment 7 A bottom view of an example of the structure of the lid in the container with RFID function in FIG. 38 A perspective view showing a state in which the lid is peeled off from the main body of the container with an RFID function in FIG. 38 Bottom view of the lid peeled off from the main body of the container with RFID function in Figure 38 Bottom view of a configuration example of a lid in a container with an RFID function according to a modified example of Embodiment 7 Bottom view of the lid peeled off from the main body of the container with RFID function in Figure 42

Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed explanation than necessary may be omitted. For example, detailed explanations of well-known matters or redundant explanations of substantially the same configurations may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art. The inventor(s) provide the accompanying drawings and the following description in order for those skilled in the art to fully understand the present disclosure, and do not intend these to limit the subject matter recited in the claims. It's not something you do.

The positional relationships such as top, bottom, left and right are based on the positional relationships shown in the drawings unless otherwise specified. Each of the figures described in the following embodiments is a schematic diagram, and the ratio of the size and thickness of each component in each figure does not necessarily reflect the actual size ratio. do not have. Further, the dimensional ratio of each element is not limited to the ratio shown in the drawings.

[1. Embodiment]
[1.1 Embodiment 1]
[1.1.1 Configuration]
FIG. 1 is an exploded perspective view of a configuration example of a container 100 with an RFID function according to the first embodiment. The container 100 with an RFID function shown in FIG. 1 is used, for example, in a system for identifying and managing products by wireless communication. The RFID function-equipped container 100 shown in FIG. 1 is traded as a product while containing the contents N100. The content N100 is, for example, an article to be traded. Content N100 can be a liquid, solid, sol, gel, or a combination thereof. Examples of the contents N100 include food, medicine, medical care, orthodontic equipment, and the like. Foods include foods that can be provided in containers, such as yogurt, pudding, and instant foods. Medical or orthotic devices include contact lenses.

The container 100 with an RFID function shown in FIG. 1 includes a main body 110, a lid 120, and an RFID module 130.

The main body 110 in FIG. 1 has a storage space 111 for the contents N100. Main body 110 has electrical insulation properties. The main body 110 is formed from, for example, paper, a resin material, or a dielectric material such as glass. The resin material includes, for example, styrofoam. The main body 110 in FIG. 1 includes a bottomed cylindrical portion 112 and a flange portion 113. The cylindrical portion 112 defines the accommodation space 111 . The cylindrical portion 112 in FIG. 1 has a cylindrical shape. The flange portion 113 projects outward from the opening edge of the housing space 111 . The outer shape of the flange portion 113 in FIG. 1 is square.

The lid 120 in FIG. 1 is attached to the main body 110 so as to cover the opening of the accommodation space 111. In this embodiment, the lid 120 is removably attached to the main body 110. The lid 120 is peeled off from the main body 110 when the content N100 is taken out from the accommodation space 111 of the main body 110. The lid 120 is entirely flexible. The lid 120 is attached to the periphery of the opening of the accommodation space 111 of the main body 110 with adhesive. In FIG. 1, the lid 120 is attached to the flange portion 113 of the main body 110 with an adhesive. The adhesive is applied to a region of the lid 120 that faces the flange portion 113.

Lid 120 includes a base material 121 and a metal film 122. The base material 121 covers the opening of the accommodation space 111. In particular, the base material 121 completely covers the opening of the housing space 111 and the flange portion 113. The outer shape of the base material 121 is square. The base material 121 is formed from a dielectric material such as paper or plastic, for example. The metal film 122 covers the opening of the accommodation space 111 of the main body 110. The metal film 122 completely covers the opening of the housing space 111 and the flange portion 113. The metal film 122 is on the surface of the base material 121 on the main body 110 side. The metal film 122 may have the effect of preventing changes in the contents due to external factors. In this way, the metal film 122 protects the contents N100 by covering the opening of the accommodation space 111. Examples of the material for the metal film 122 include aluminum and an alloy containing aluminum.

FIG. 2 is a bottom view of the lid 120. As shown in FIG. 2, the metal film 122 is divided into multiple parts. More specifically, the metal film 122 is divided into first to fourth side parts 122a to 122d corresponding to the four sides of the metal film 122, and a central part 122e that covers the opening of the accommodation space 111. The central portion 122e includes a predetermined region R100 in the metal film 122 that covers the opening of the accommodation space 111. In the metal film 122, the first to fourth side parts 122a to 122d and the central part 122e are electrically isolated from each other. The first to fourth side parts 122a to 122d can be used as an antenna pattern for the RFID module 130. In the metal film 122, adjacent two of the first to fourth sides 122a to 122d can be used as an antenna pattern for the RFID module 130. That is, the RFID module 130 may be set at any of the four corners of the lid 120. Therefore, the degree of freedom in arranging the RFID module 130 on the lid 120 is improved. In FIG. 2, the first and second side portions 122a and 122b constitute first and second antenna patterns that are electrically independent from each other. In this embodiment, the first side portion 122a may be referred to as a first antenna pattern 122a, and the second side portion 122b may be referred to as a second antenna pattern 122b.

The metal film 122 is divided by a slit 123 formed in the metal film 122 into first to fourth side parts 122a to 122d and a central part 122e that covers the opening of the accommodation space 111. Therefore, the shapes of the first and second antenna patterns 122a and 122b are defined by the slits 123 formed in the metal film 122. The slit 123 is arranged in the metal film 122 so as to avoid a predetermined region R100 that covers the opening of the accommodation space 111 of the main body 110. Thereby, the antenna patterns 122a and 122b can be provided without affecting the protection function of the metal film 122 for the contents N100. The slit 123 in FIG. 2 includes a frame portion 123a and first to fourth extension portions 123b-1 to 123b-4. The frame portion 123a has a rectangular frame shape surrounding the predetermined region R100. The four sides of the frame portion 123a are parallel to the four sides of the metal film 122, respectively. Each of the first to fourth extension parts 123b-1 to 123b-4 extends from a corner of the frame part 123a to the closest corner of the metal film 122. The first and fourth extensions 123b-1 and 123b-4 are located on the same diagonal line of the lid 120. The second and third extensions 123b-2 and 123b-3 are located on the same diagonal line of the lid 120. In the slit 123, the frame portion 123a is a first portion that is formed to surround the opening of the accommodation space 111 and electrically isolates the first and second antenna patterns 122a and 122b from the predetermined region R100. The first extension part 123b-1 is a second part formed at the edge of the opening of the accommodation space 111 to electrically isolate the first and second antenna patterns 122a and 122b. Note that the slit 123 penetrates the metal film 122 but does not penetrate the base material 121.

The RFID module 130 is a wireless communication device configured to wirelessly communicate (transmit and receive) using a high frequency signal having a communication frequency (carrier frequency). The RFID module 130 is configured to perform wireless communication using a high frequency signal having a communication frequency in the UHF band, for example. Here, the UHF band is a frequency band from 860 MHz to 960 MHz.

As shown in FIG. 2, the RFID module 130 is located outside a predetermined region R100 of the lid 120 and is coupled to the metal film 122. That is, the RFID module 130 is located outside the opening of the housing space 111 in the lid 120 and is coupled to the metal film 122 . Being outside the opening of the accommodation space 111 means that it does not overlap with the accommodation space 111 in a plane orthogonal to the depth direction of the accommodation space 111. The RFID module 130 is located on the main body 110 side of the lid 120 (that is, on the back side of the lid 120). In particular, the RFID module 130 is located at a portion of the lid 120 that faces the flange portion 113 of the main body 110. When the containers 100 with an RFID function are stacked on top of each other during transportation or display, the cylindrical portions 112 of the main bodies 110 overlap. FIG. 3 is a schematic diagram showing a state in which the RFID function-equipped containers 100 are stacked. In the container 100 with an RFID function, as described above, the RFID module 130 is located at a portion of the lid 120 that faces the flange portion 113 of the main body 110. Therefore, compared to the case where the RFID module 130 is located in a portion of the lid 120 that overlaps with the housing space 111 of the main body 110, the RFID module 130 is less susceptible to the influence from another container 100 with an RFID function, especially the influence from the contents N100. Hard to accept. Therefore, in the RFID function-equipped container 100 of the present embodiment, when the RFID function-equipped containers 100 are stacked, the cylindrical portion 112 of the main body 110 overlaps, so that the possibility of impairing the function of the RFID module 130 can be reduced.

The RFID module 130 is coupled to the metal film 122 in the lid 120 so as to straddle the first extension 123b-1 of the slit 123. More specifically, the RFID module 130 has first and second electrodes 131 and 132, such that the first and second electrodes 131 and 132 are coupled to first and second antenna patterns 122a and 122b, respectively. , on the lid 120. In this embodiment, the first and second electrodes 131 and 132 are capacitively coupled to the first and second antenna patterns 122a and 122b, respectively.

The lid 120 includes a protective film 124 (see FIG. 6). Note that the protective film 124 is omitted in FIGS. 1 and 2 to simplify the drawings. A protective film 124 covers the metal film 122. In this embodiment, the protective film 124 comprehensively covers the first to fourth side parts 122a to 122d and the central part 122e of the metal film 122. The material of the protective film 124 is, for example, a hot melt agent such as ethylene vinyl acetate (EVA). In this embodiment, as shown in FIG. 5, the RFID module 130 is located between the protective film 124 and the metal film 122. This can reduce the possibility of the RFID module 130 falling off the lid 120.

Next, the configuration of the RFID module 130 will be described with reference to FIGS. 4 to 6. 4(a) is a plan view of a configuration example of the RFID module 130, and FIG. 4(b) is a bottom view of the configuration example of the RFID module 130. FIG. 5 is a cross-sectional view taken along line XX in FIG. 2. FIG. 6 is a cross-sectional view taken along the YY line in FIG. 4(a). In FIG. 5, the XYZ coordinate system is used to facilitate understanding of the invention and is not intended to limit the invention. The X-axis direction indicates the length direction of the RFID module 130, the Y-axis direction indicates the width direction of the RFID module 130, and the Z-axis direction indicates the thickness direction of the RFID module 130. The X, Y, and Z directions are orthogonal to each other.

As shown in FIG. 5, the RFID module 130 is bonded to the first antenna pattern and the second antenna pattern 122b of the metal film 122 via an adhesive layer 139. The adhesive layer 139 is made of, for example, double-sided tape or an adhesive such as synthetic resin.

As shown in FIG. 5, the RFID module 130 includes a substrate 133 and an RFIC element 134 mounted on the substrate 133. The substrate 133 is, for example, a flexible substrate made of polyimide or the like. A protective film 135 is formed on the first surface (upper surface in FIG. 5) of the substrate 133 on which the RFIC element 134 is mounted. The protective film 135 is, for example, an elastomer such as polyurethane or a hot melt agent such as ethylene vinyl acetate (EVA). A protective film 136 is also attached to the second surface (lower surface in FIG. 5) of the substrate 133. The protective film 136 is, for example, a coverlay film such as a polyimide film (Kapton tape).

Further, on the first surface of the substrate 133, a third electrode 137, a fourth electrode 138, a conductor pattern L1a of the main part of the first inductance element L1, and a conductor pattern L2a of the main part of the second inductance element L2 are formed. has been done. The third electrode 137 is connected to one end of the conductor pattern L1a, and the fourth electrode 138 is connected to one end of the conductor pattern L2a. These conductor patterns are formed, for example, by patterning copper foil using photolithography.

A first electrode 131 and a second electrode 132 are formed on the second surface of the substrate 133 and are capacitively coupled to the first side 122a and second side 122b of the metal film 122, respectively. Further, on the second surface of the substrate 133, a part of the conductor pattern L1b of the first inductance element L1, conductor patterns L3a, L3b (conductor pattern surrounded by a chain double-dashed line), and L3c of the third inductance element L3 are formed. There is. These conductor patterns are also formed, for example, by patterning copper foil using photolithography.

One end of a portion of the conductor pattern L1b of the first inductance element L1 and one end of the conductor pattern L3a of the third inductance element L3 are connected to the first electrode 131. Similarly, one end of the conductor pattern L2b of the second inductance element L2 and one end of the conductor pattern L3c of the third inductance element L3 are connected to the second electrode 132. A conductor pattern L3b is connected between the other end of the conductor pattern L3a of the third inductance element L3 and the other end of the conductor pattern L3c.

The other end of the conductor pattern L1b of the first inductance element L1 and the other end of the conductor pattern L1a of the first inductance element L1 are connected via a via conductor V1. Similarly, the other end of the conductor pattern L2b of the second inductance element L2 and the other end of the conductor pattern L2a of the second inductance element L2 are connected via a via conductor V2.

The RFIC element 134 is mounted on a third electrode 137 and a fourth electrode 138 formed on the first surface of the substrate 133. That is, the first terminal 134a of the RFIC element 134 is connected to the third electrode 137, and the second terminal 134b of the RFIC element 134 is connected to the fourth electrode 138.

The conductor patterns L3a of the first inductance element L1 and the third inductance element L3 are formed on different layers of the substrate 133, and are arranged such that their coil openings overlap. Similarly, the conductor patterns L3c of the second inductance element L2 and the third inductance element L3 are formed on different layers of the substrate 133, and are arranged such that their coil openings overlap. Furthermore, the RFIC element 134 is located between the conductor pattern L3c of the second inductance element L2 and the third inductance element L3 and the conductor pattern L3a of the first inductance element L1 and the third inductance element L3 on the surface of the substrate 133. ,To position.

Inside the RFID module 130, a first current path CP1 passing through the first and second surfaces of the substrate 133 and a second current path CP2 passing through the second surface of the substrate 133 are formed. The first current path CP1 reaches the second electrode 132 from the first electrode 131 through the branch point N1, the conductor pattern L1b, the conductor pattern L1a, the RFIC element 134, the conductor pattern L2a, the conductor pattern L2b, and the branch point N2. The second current path CP2 reaches the second electrode 132 from the first electrode 131 through the branch point N1, the conductor pattern L3a, the conductor pattern L3b, the conductor pattern L3c, and the branch point N2. Here, the first inductance element L1 is composed of a conductor pattern L1b connected to a conductor pattern L1a via a via conductor V1, and the first inductance element L1 is composed of a conductor pattern L2b connected to a conductor pattern L2a via a via conductor V2. The winding direction of the current flowing through the second inductance element L2 is opposite, and the magnetic field generated in the first inductance element L1 and the magnetic field generated in the second inductance element L2 cancel each other out. The first current path CP1 and the second current path CP2 are formed in parallel with each other between the first electrode 131 and the second electrode 132, respectively.

In the container 100 with an RFID function shown in FIG. 1, the RFID module 130 and the first and second antenna patterns 122a and 122b of the metal film 122 constitute a communication circuit. The first and second antenna patterns 122a and 122b of the metal film 122 function as dipole antennas for the RFID module 130.

Next, with reference to FIG. 7, the circuit configuration of the communication circuit of the RFID function container 100 of FIG. 1 will be described. FIG. 7 is a circuit diagram of an example of the circuit configuration of the container 100 with an RFID function.

As shown in FIG. 7, in the RFID module 130, the first current path CP1 is a part of the parallel resonant circuit RC1, which is an LC parallel resonant circuit, and is matched to the radio waves of the communication frequency. When the metal film 122 receives a radio wave of the same frequency, a current flows through the RFIC element 134.

The RFID module 130 has a parallel resonant circuit RC1. The parallel resonant circuit RC1 is a loop circuit composed of a first inductance element L1, an RFIC element 134, a second inductance element L2, and a third inductance element L3.

As described above, the first and second electrodes 131 and 132 of the RFID module 130 are capacitively coupled to the first and second antenna patterns 122a and 122b, respectively. The capacitance component C1 between the first electrode 131 and the first antenna pattern 122a includes the first antenna pattern 122a, the first electrode 131, the adhesive layer 139, and the protective film 136. The capacitance component C2 between the second electrode 132 and the second antenna pattern 122b includes the second antenna pattern 122b, the second electrode 132, the adhesive layer 139, and the protective film 136. The first antenna pattern 122a has an inductance component and acts as a fourth inductance element L4. The second antenna pattern 122b has an inductance component and acts as a fifth inductance element L5.

The parallel resonant circuit RC1 is designed to perform LC parallel resonance by impedance matching with respect to radio waves at a communication frequency. Therefore, the parallel resonant circuit RC1 acts as a filter circuit that transmits a current generated by an electromagnetic wave having a unique resonant frequency, which is a communication frequency, to the RFIC element 134. Thereby, the communication frequency is matched with the RFIC element 134, and the communication distance of the RFID module 130 at the communication frequency can be ensured.

[1.1.2 Effects, etc.]
As described above, the container 100 with an RFID function includes the electrically insulating main body 110 having the accommodation space 111 for the contents N100, and the metal film 122, and is attached to the main body 110 so as to cover the opening of the accommodation space 111. The RFID module 130 includes a lid 120 and an RFID module 130 having first and second electrodes 131 and 132 attached to the lid 120 outside the opening of the housing space 111 and coupled to the metal film 122.

In the container 100 with an RFID function, the RFID module 130 is coupled to the metal film 122 of the lid 120, thereby realizing the function as an RFID tag. Since the metal film 122 formed on the lid 120 is used to protect the contents N100, there is no need to separately provide an antenna or the like just for the RFID function. Since the RFID module 130 is located outside the opening of the housing space 111 in the lid 120, even if the RFID module 130 falls off the lid 120 unintentionally, the possibility of the RFID module 130 being mixed into the contents N100 is reduced. can. As described above, the RFID function-equipped container 100 of the present embodiment is a container in which the lid 120 having the metal film 122 is attached to the main body 110 that accommodates the contents N100, and the RFID module 130 is suppressed from deteriorating the design. It is possible to reduce the possibility of contamination with the contents N100.

In the container 100 with an RFID function, the metal film 122 includes an antenna pattern (first and second antenna patterns 122a, 122b). The RFID module 130 is located on the lid 120 such that the first and second electrodes 131, 132 are coupled to the antenna patterns (first and second antenna patterns 122a, 122b). With this configuration, since the metal film 122 has an antenna pattern, the efficiency of wireless communication in the RFID module 130 can be improved.

In the container with RFID function 100, the antenna pattern includes first and second antenna patterns 122a and 122b that are electrically independent from each other. The RFID module 130 is located on the lid 120 such that first and second electrodes 131 and 132 are coupled to the first and second antenna patterns 122a and 122b, respectively. This configuration can form a dipole antenna.

In the container 100 with an RFID function, the shapes of the first and second antenna patterns 122a and 122b are defined by the slits 123 formed in the metal film 122. The slit 123 is arranged in the metal film 122 so as to avoid a predetermined region R100 that covers the opening of the accommodation space 111. With this configuration, the first and second antenna patterns 122a and 122b can be provided without affecting the protection function of the metal film 122 for the contents N100.

In the container 100 with an RFID function, the slit 123 includes a first portion 123a that is formed to surround the opening of the accommodation space 111 and electrically isolates the first and second antenna patterns 122a and 122b from the predetermined region R100; Second portions 123b-1 to 123b-4 are formed at the edge of the opening of the space 111 to electrically isolate the first and second antenna patterns 122a and 122b. This configuration can reduce the possibility that the first and second antenna patterns 122a and 122b will be affected by the content N100.

In the container 100 with an RFID function, the main body 110 has a flange portion 113 that projects outward from the opening edge of the accommodation space 111 . The RFID module 130 is located at a portion of the lid 120 that faces the flange portion 113. This configuration can reduce the possibility that the function of the RFID module 130 will be impaired when the RFID function-equipped containers 100 are stacked.

In the container 100 with an RFID function, the lid 120 has a protective film 124 that covers the metal film 122. RFID module 130 is between protective film 124 and metal film 122. This configuration can reduce the possibility that the RFID module 130 will fall off the lid 120.

In the container 100 with an RFID function, the RFID module 130 is located on the main body 110 side of the lid 120. With this configuration, the design of the container 100 with an RFID function is less likely to be impaired. This configuration makes it difficult for the RFID module 130 to fall off.

In the container 100 with an RFID function, the RFID module 130 includes an RFIC element 134 and a filter circuit RC1 that transmits a current generated by an electromagnetic wave having a unique resonance frequency, which is a communication frequency, to the RFIC element 134. The first electrode 131 and the second electrode 132 are connected to the filter circuit RC1. In this configuration, the RFIC element 134 and the metal film 122 are matched at the communication frequency, and the communication distance of the RFID module 130 at the communication frequency can be ensured.

[1.1.3 Modification]
Embodiment 1 is not limited to the above configuration. Embodiment 1 can be modified in various ways depending on the design, etc., as long as the object can be achieved. Modifications of the first embodiment are listed below. The modified examples described below can be applied in combination as appropriate.

[1.1.3.1 Modification 1]
FIG. 8 is a bottom view of a configuration example of a lid 120A of a container with an RFID function according to Modification 1 of Embodiment 1. The lid 120A includes a metal film 122A in which a slit 123A is formed. The slit 123A in FIG. 8 is arranged in the metal film 122A so as to avoid a predetermined region R100 that covers the opening of the accommodation space 111 of the main body 110. The slit 123A in FIG. 8 has a different shape from the slit 123 in FIG. The slit 123A in FIG. 8 includes a frame portion 123a and first and fourth extension portions 123b-1 and 123b-4. The slit 123A differs from the slit 123 in that it does not include the second and third extensions 123b-2 and 123b-3.

The slit 123A allows the metal film 122A to have a first side portion 122f corresponding to two adjacent four sides of the metal film 122A, and a second side portion 122g corresponding to the remaining two adjacent four sides of the metal film 122A. , and a central portion 122e that covers the opening of the accommodation space 111. In the metal film 122A, the first and second side portions 122f, 122g and the center portion 122e are electrically isolated from each other. The first and second sides 122f and 122g can be used as an antenna pattern for the RFID module 130. In FIG. 8, the first and second side portions 122f and 122g constitute first and second antenna patterns that are electrically independent from each other. Hereinafter, the first side portion 122f may be referred to as a first antenna pattern 122f, and the second side portion 122g may be referred to as a second antenna pattern 122g.

The RFID module 130 is coupled to the metal film 122A in the lid 120A so as to straddle the first extension 123b-1 of the slit 123A. More specifically, the RFID module 130 is located on the lid 120A such that the first and second electrodes 131 and 132 are coupled to the first and second antenna patterns 122f and 122g, respectively. The first and second electrodes 131 and 132 are capacitively coupled to the first and second antenna patterns 122f and 122g, respectively.

In the lid 120A of FIG. 8, the antenna pattern can be made longer than that of the lid 120 of FIG. 2. This improves the degree of freedom in determining the length of the antenna pattern. Therefore, it is more likely that the length of the antenna pattern can be set to a length suitable for the wavelength corresponding to the communication frequency of the RFID module 130. A suitable length for the wavelength corresponding to the communication frequency of the RFID module 130 is, for example, 1/2 of the wavelength corresponding to the communication frequency of the RFID module 130.

[1.1.3.2 Modification 2]
FIG. 9 is a bottom view of a configuration example of a lid 120B of a container with an RFID function according to a second modification of the first embodiment. The lid 120B includes a metal film 122B in which a slit 123B is formed. The slit 123B in FIG. 9 is arranged in the metal film 122B so as to avoid a predetermined region R100 that covers the opening of the accommodation space 111 of the main body 110. The slit 123B in FIG. 9 has a different shape from the slit 123 in FIG. The slit 123B in FIG. 9 includes a frame portion 123a and a first extension portion 123b-1. The slit 123B differs from the slit 123 in that it does not include the second to fourth extensions 123b-2 to 123b-4.

The slit 123B divides the metal film 122B into a peripheral part 122h corresponding to the four sides of the metal film 122A and a central part 122e that covers the opening of the accommodation space 111. In the metal film 122B, the peripheral portion 122h and the central portion 122e are electrically isolated from each other. The peripheral portion 122h has a shape that surrounds the central portion 122e, but is separated at the first extension portion 123b-1. As a result, the peripheral portion 122h has first and second ends 122ha and 122hb that face each other with the first extension portion 123b-1 in between. The peripheral portion 122h can be used as a loop antenna pattern for the RFID module 130. Below, the peripheral portion 122h may be referred to as a loop antenna pattern 122h.

The RFID module 130 is coupled to the metal film 122B in the lid 120B so as to straddle the first extension 123b-1 of the slit 123B. More specifically, the RFID module 130 is located on the lid 120B such that the first and second electrodes 131 and 132 are coupled to the first end 122ha and second end 122hb of the loop antenna pattern 122h, respectively. The first and second electrodes 131 and 132 are capacitively coupled to a first end 122ha and a second end 122hb of the loop antenna pattern 122h, respectively.

In the lid 120B of FIG. 9, the loop antenna pattern 122h of the metal film 122B functions as a loop antenna for the RFID module 130.

In the second modification described above, the metal film 122B includes an antenna pattern (loop antenna pattern 122h). The RFID module 130 is located on the lid 120B such that the first and second electrodes 131, 132 are coupled to the antenna pattern (loop antenna pattern 122h). With this configuration, since the metal film 122B has an antenna pattern, the efficiency of wireless communication in the RFID module 130 can be improved.

In Modification 2, the antenna pattern includes a loop antenna pattern 122h. The RFID module 130 is located on the lid 120B such that the first and second electrodes 131 and 132 are respectively coupled to the first and second ends 122ha and 122hb of the loop antenna pattern 122h. This configuration can form a loop antenna.

In modification 2, the shape of the loop antenna pattern 122h is defined by a slit 123B formed in the metal film 122B. The slit 123B is arranged in the metal film 122B so as to avoid a predetermined region R100 that covers the opening of the accommodation space 111. With this configuration, the loop antenna pattern 122h can be provided without affecting the protection function of the content N100 by the metal film 122B.

[1.1.3.3 Modification 3]
FIG. 10 is a bottom view of a configuration example of a lid 120C of a container with an RFID function according to a third modification of the first embodiment. The lid 120C includes a metal film 122C in which a slit 123C is formed. The slit 123C in FIG. 10 is arranged in the metal film 122C so as to avoid a predetermined region R100 that covers the opening of the accommodation space 111 of the main body 110. The slit 123C in FIG. 10 has a different shape from the slit 123 in FIG. The slit 123C in FIG. 10 is formed at a corner of the metal film 122C facing the flange portion 113 of the main body 110. The slit 123C has a first side 123c, a second side 123d, and first and second extensions 123e and 123f. The first side portion 123c extends from a predetermined corner (the upper right corner in FIG. 10) of the metal film 122C toward the center of the metal film 122C. The second side portion 123d extends from the tip of the first side portion 123c in a direction perpendicular to the length direction of the first side portion 123c. The first and second extensions 123e and 123f extend along the adjacent sides of the metal film 122C from both longitudinal ends of the second side 123d.

The slit 123C forms a loop antenna pattern 122i around the slit 123C in the metal film 122C. The loop antenna pattern 122i has a shape that surrounds the slit 123C, but is separated at the first side 123c of the slit 123C. Accordingly, the loop antenna pattern 122i has first and second ends 122ia and 122ib facing each other with the first side 123c in between.

The RFID module 130 is coupled to the metal film 122C in the lid 120C so as to straddle the first side 123c of the slit 123C. More specifically, the RFID module 130 is on the lid 120C such that the first and second electrodes 131 and 132 are respectively coupled to the first end 122ia and the second end 122ib of the loop antenna pattern 122i. Also in FIG. 10, the RFID module 130 is located at a portion of the lid 120C that faces the flange portion 113. The first and second electrodes 131 and 132 are capacitively coupled to a first end 122ia and a second end 122ib of the loop antenna pattern 122i, respectively.

In the lid 120C of FIG. 10, the loop antenna pattern 122i of the metal film 122C functions as a loop antenna for the RFID module 130.

[1.1.3.4 Modification 4]
FIG. 11 is a bottom view of a configuration example of a lid 120D of a container with an RFID function according to a fourth modification of the first embodiment. The lid 120D includes a metal film 122D in which a slit 123D is formed. The slit 123D in FIG. 11 is arranged in the metal film 122D so as to avoid a predetermined region R100 that covers the opening of the accommodation space 111 of the main body 110. The slit 123D in FIG. 11 has a different shape from the slit 123 in FIG. The slit 123D in FIG. 11 is formed at a corner of the metal film 122D that faces the flange portion 113 of the main body 110. The slit 123D has a first side 123g, a second side 123h, and a third side 123i. The first side portion 123g extends from a predetermined corner (upper right corner in FIG. 11) of the metal film 122D toward the center of the metal film 122D. The second side portion 123h extends from the tip of the first side portion 123g in a direction perpendicular to the length direction of the first side portion 123g. The third side portion 123i extends along the side of the metal film 122D adjacent to the tip of the second side portion 123h.

The slit 123D forms a loop antenna pattern 122j around the slit 123D in the metal film 122D. The loop antenna pattern 122j has a shape that surrounds the slit 123D, but is separated at the first side 123g of the slit 123D. Accordingly, the loop antenna pattern 122j has first and second ends 122ja and 122jb facing each other with the first side portion 123g in between.

The RFID module 130 is coupled to the metal film 122D in the lid 120D so as to straddle the first side 123g of the slit 123D. More specifically, the RFID module 130 is located on the lid 120D such that the first and second electrodes 131 and 132 are respectively coupled to the first end 122ja and the second end 122jb of the loop antenna pattern 122j. Also in FIG. 11, the RFID module 130 is located at a portion of the lid 120D that faces the flange portion 113. The first and second electrodes 131 and 132 are capacitively coupled to the first end 122ja and the second end 122jb of the loop antenna pattern 122j, respectively.

In the lid 120D of FIG. 11, the loop antenna pattern 122j of the metal film 122D functions as a loop antenna for the RFID module 130.

[1.1.3.5 Modification 5]
FIG. 12 is a bottom view of a configuration example of a lid 120E of a container with an RFID function according to a fifth modification of the first embodiment. The lid 120E includes a metal film 122E in which a slit 123E is formed. The slit 123E in FIG. 12 is arranged in the metal film 122E so as to avoid a predetermined region R100 that covers the opening of the housing space 111 of the main body 110. The slit 123E in FIG. 12 has a different shape from the slit 123 in FIG. The slit 123E in FIG. 12 is formed along a predetermined direction at a portion of the metal film 122E that corresponds to the edge of the opening of the accommodation space 111. The predetermined direction is a direction along the side of the metal film 122E close to the slit 123E (vertical direction in FIG. 12).

The slit 123E divides the metal film 122E into a first portion 122k corresponding to one of the four sides (the left side in FIG. 12) of the metal film 122E, and a second portion 122l remaining in the metal film 122E. The second portion 122l includes a predetermined region R100 that covers the opening of the accommodation space 111. In the metal film 122E, the first and second portions 122k and 122l are electrically isolated from each other by a slit 123E. The first and second parts 122k and 122l can be used as an antenna pattern for the RFID module 130. In FIG. 12, the first and second portions 122k and 122l constitute first and second antenna patterns that are electrically independent from each other. Hereinafter, the first portion 122k may be referred to as a first antenna pattern 122k, and the second portion 122l may be referred to as a second antenna pattern 122l.

The RFID module 130 is coupled to the metal film 122E in the lid 120E so as to straddle the slit 123E. More specifically, the RFID module 130 is on the lid 120E such that the first and second electrodes 131, 132 are coupled to the first and second antenna patterns 122k, 122l, respectively. Also in FIG. 12, the RFID module 130 is located at a portion of the lid 120E that faces the flange portion 113. The first and second electrodes 131 and 132 are capacitively coupled to the first and second antenna patterns 122k and 122l, respectively.

In the lid 120E of FIG. 12, the first and second antenna patterns 122k and 122l of the metal film 122E function as dipole antennas for the RFID module 130.

In the lid 120E of FIG. 12, a slit 123E is formed along a predetermined direction. In particular, the slits 123E are formed in a straight line along a predetermined direction. Therefore, it becomes possible to collectively form the slits 123E in the plurality of lids 120E. Next, an example of a method for manufacturing the lid 120E will be described with reference to FIGS. 13 to 15. An example of a method for manufacturing the lid 120E includes a first step, a second step, and a third step.

FIG. 13 is an explanatory diagram of the first step of an example of the method for manufacturing the lid 120E. In the first step, a sheet 140 of a size capable of forming a plurality of lids 120E is prepared. In FIG. 13, the sheet 140 is large enough to form 16 lids 120E. More specifically, the sheet 140 includes regions R120 where the lids 120E are to be formed, arranged in a 4×4 matrix. The sheet 140 is constructed by forming a metal layer, which is the basis of the metal film 122E of the lid 120E, on a base material layer which is the basis of the base material 121 of the lid 120E. A region R121 other than the intended formation region R120 on the sheet 140 is a region that is not used for the lid 120E.

FIG. 14 is an explanatory diagram of the second step of an example of the method for manufacturing the lid 120E. In the second step, grooves 150 are formed in the metal layer of the sheet 140 prepared in the first step. A portion of the groove 150 corresponding to each formation planned region R120 becomes a slit 123E. In FIG. 14, one groove 150 along a predetermined direction is formed in a plurality of (four in FIG. 14) planned formation regions R120 lined up in a predetermined direction. As a result, a plurality of (four in FIG. 14) slits 123E are formed at once.

FIG. 15 is an explanatory diagram of the third step in an example of the method for manufacturing the lid 120E. In the third step, a plurality of RFID modules 130 are respectively arranged in the formation region R120 of the plurality of lids 120E.

After the third step, the sheet 140 is cut and separated into a plurality of lids 120E. The cutting of the sheet 140 may be performed after the sheet 140 is attached to the plurality of bodies 110 together.

In the fifth modification described above, the slit 123E is formed along a predetermined direction at a portion of the metal film 122E that corresponds to the edge of the opening of the accommodation space 111, and electrically connects the first and second antenna patterns 122k and 122l. to separate. This configuration makes it possible to form slits 123E in multiple lids 120E at once.

[1.2 Embodiment 2]
[1.2.1 Configuration]
FIG. 16 is an exploded perspective view of a configuration example of a container 200 with an RFID function according to the second embodiment. The container 200 with an RFID function shown in FIG. 16 is configured as a set of a plurality of containers. The container 200 with an RFID function shown in FIG. 16 can be used, for example, for products that are traded in packs of four.

The container 200 with an RFID function shown in FIG. 16 includes a main body 210, a lid 220, and an RFID module 230.

The main body 210 in FIG. 16 has a plurality of (four in FIG. 16) accommodation spaces 211 for the contents N100. Main body 210 has electrical insulation properties. Body 210 is formed from a dielectric material such as paper, plastic, or glass, for example.

The main body 210 in FIG. 16 has a plurality of (four in FIG. 16) small main body parts 215a to 215d. Each of the plurality of small body parts 215a to 215d has a bottomed cylindrical part 212 and a flange part 213. The cylindrical portion 212 defines the accommodation space 211 . The cylindrical portion 212 in FIG. 16 has a cylindrical shape. The flange portion 213 projects outward from the opening edge of the housing space 211 . The outer shape of the flange portion 213 in FIG. 16 is square.

The four small main body parts 215 are arranged so that the accommodation space 211 surrounds a predetermined region. In FIG. 16, the predetermined region is the central portion of main body 210. In FIG. In this embodiment, the four small main body parts 215a to 215d are arranged in a 2×2 matrix. At the center of the main body 210 is an opening 216 surrounded by four small main body parts 215a to 215d. The four small main body parts 215a to 215d are connected to each other by a flange part 213. A perforation 214a is formed between the flange portions 213 of the adjacent small main body portions 215a, 215b. The perforations 214a are used to separate the small body parts 215a and 215b from each other. A perforation 214b is formed between the flange portions 213 of the adjacent small main body portions 215a and 215c. The perforations 214b are used to separate the small body parts 215a and 215c from each other. A perforation 214c is formed between the flange portions 213 of the adjacent small main body portions 215c and 215d. The perforation 214c is used to separate the small body parts 215c and 215d from each other. A perforation 214d is formed between the flange portions 213 of the adjacent small main body portions 215b and 215d. The perforations 214d are used to separate the small body parts 215b and 215d from each other. Each of the perforations 214a to 214d is constituted by a plurality of slits arranged between the pair of accommodation spaces 211 in the main body 210 in a direction intersecting the direction in which the pair of accommodation spaces 211 are adjacent to each other. The small body parts 215a to 215d can be separated from each other by perforations (first perforations) 214a to 214d in the main body 210.

The lid 220 in FIG. 16 is attached to the main body 210 so as to cover the openings of the plurality of accommodation spaces 211. The lid 220 in FIG. 16 is releasably attached to the main body 210. The lid 220 is peeled off from the main body 210 when the content N100 is taken out from the storage space 211 of the main body 210. The lid 220 is entirely flexible.

The lid 220 in FIG. 16 has a plurality of (four in FIG. 16) small lid portions 225a to 225d. The plurality of small lid portions 225a to 225d correspond to the plurality of small body portions 215a to 215d of the main body 210, respectively. In the container with RFID function 200, the small body parts 215a to 215d and the small lid parts 225a to 225d corresponding to the small body parts 215a to 215d constitute a small container. Lid 220 includes a base material 221 and a metal film 222. The base material 221 covers the openings of the accommodation spaces 211 of the plurality of small main body parts 215a to 215d. In particular, the base material 221 entirely covers the openings of the accommodation spaces 211 and the flange portions 213 of the plurality of small main body portions 215a to 215d. The outer shape of the base material 221 is square. The base material 221 is formed from a dielectric material such as paper or plastic, for example. The metal film 222 comprehensively covers the openings of the accommodation spaces 211 of the plurality of small main body parts 215a to 215d. The metal film 222 comprehensively covers the openings of the housing spaces 211 and the flange portions 213 of the plurality of small main body portions 215a to 215d. The metal film 222 is on the surface of the base material 221 on the main body 210 side. The metal film 222 may have the effect of preventing changes in the contents due to external factors. In this way, the metal film 222 protects the contents N100 by covering the opening of the accommodation space 211 of the small body portion 215. Examples of the material of the metal film 222 include aluminum and an alloy containing aluminum.

The four small lid portions 225a to 225d are arranged in a 2×2 matrix. At the center of the lid 220 is an opening 226 surrounded by four small lid parts 225a to 225d. The opening 226 is located in the lid 220 at a position corresponding to a predetermined portion (center) of the main body 210. The four small lid parts 225a to 225d are connected to each other. A perforation 224a is formed in the lid 220 between adjacent small lid portions 225a and 225b. The perforation 224a is used to separate the small lid portions 225a and 225b from each other. A perforation 224b is formed between the adjacent small lid portions 225a and 225c in the lid 220. The perforations 224b are used to separate the small lid portions 225a and 225c from each other. A perforation 224c is formed between the adjacent small lid portions 225c and 225d in the lid 220. The perforation 224c is used to separate the small lid portions 225c and 225d from each other. A perforation 224d is formed between the adjacent small lid portions 225b and 225d in the lid 220. The perforations 224d are used to separate the small lid portions 225b and 225d from each other. The perforations 224a to 224d are formed in the lid 220 at positions that overlap the perforations 214a to 214d of the main body 210. Therefore, each of the perforations 224a to 224d is constituted by a plurality of slits arranged between the pair of accommodation spaces 211 in the main body 210 in a direction intersecting the direction in which the pair of accommodation spaces 211 are adjacent to each other. The small lid parts 225a to 225d can be separated from each other by the perforations (second perforations) 224a to 224d of the lid 220.

The lid 220 is attached to the main body 210 by attaching the small lid parts 225a to 225d to the periphery of the opening of the accommodation space 211 of the small main body parts 215a to 215d using adhesive. In FIG. 16, the small lid portions 225a to 225d are attached to the flange portions 213 of the small main body portions 215a to 215d with adhesive. The adhesive is applied to areas of the small lids 225a to 225d that face the flange 213. In other words, even when the RFID function-equipped container 200 is separated into small containers consisting of the small body parts 215a to 215d and the small lid parts 225a to 225d by the perforations 214a to 214d and 224a to 224d, each small container In this case, the small lid parts 225a to 225d are attached to the small main body parts 215a to 215d with adhesive.

FIG. 17 is a bottom view of the lid 220. As shown in FIG. 17, the metal film 222 is located on the entire surface of the lid 220 on the main body 210 side, and comprehensively covers the plurality of accommodation spaces 211 of the main body 210. Since the lid 220 has an opening 226 in the center, the metal film 222 is not present in a portion corresponding to the opening 226. A slit 223 is formed in the metal film 222. The slit 223 in FIG. 17 is arranged in the metal film 222 so as to avoid a predetermined region R200 that covers the opening of the housing space 211 of the main body 210. The slit 223 in FIG. 17 is formed at a corner of the metal film 222 facing the flange portion 213 of the small body portion 215a of the main body 210. The slit 223 extends from the opening 226 toward the opposite corner.

A loop antenna pattern 222a is formed around the opening 226 in the metal film 222 by the slit 223. The loop antenna pattern 222a can generate a path through which current flows, as shown by double-headed arrows A in FIG. The loop antenna pattern 222a has a shape that surrounds the opening 226, but is partially separated at the slit 223. Accordingly, the loop antenna pattern 222a has first and second ends 222aa and 222ab facing each other with the slit 223 in between.

RFID module 230 is the same as RFID 130. The RFID module 230 is coupled to the metal film 222 in the lid 220 so as to straddle the slit 223 . More specifically, the RFID module 230 is on the lid 220 such that the first and second electrodes 231 and 232 are respectively coupled to the first end 222aa and the second end 222ab of the loop antenna pattern 222a. Also in FIG. 17, the RFID module 230 is located at a portion of the lid 220 that faces the flange portion 213. The first and second electrodes 231 and 232 are capacitively coupled to a first end 222aa and a second end 222ab of the loop antenna pattern 222a, respectively.

In the RFID function container 200 of FIG. 17, the loop antenna pattern 222a of the metal film 222 functions as a loop antenna for the RFID module 230 before the RFID function container 200 is separated into small containers. That is, before the plurality of accommodation spaces 211 are separated, the RFID module 230 can communicate using the metal film 222. On the other hand, when the container with RFID function 200 is separated into small containers, the metal film 222 is separated at the perforations 224 and the loop antenna pattern 222a is damaged. It will no longer function as a loop antenna. Therefore, after the container 200 with the RFID function is separated into small containers, the RFID function no longer functions. That is, after the plurality of accommodation spaces 211 are separated, the RFID module 230 cannot communicate using the metal film 222.

[1.2.2 Effects, etc.]
In the container 200 with an RFID function described above, the main body 210 has a plurality of accommodation spaces 211 arranged so as to surround a predetermined region. The metal film 222 comprehensively covers the plurality of accommodation spaces 211 . An opening 226 is formed in the lid 220 at a position corresponding to a predetermined region. A slit 223 extending from an opening 226 is formed in the metal film 222 . The RFID module 230 is located on the lid 220 so as to straddle the slit 223. With this configuration, in a container in which a lid 220 having a metal film 222 is attached to a main body 210 having a plurality of accommodation spaces 211 each accommodating contents N100, the RFID module 230 can suppress deterioration of the design while allowing the RFID module 230 to accommodate contents N100. The possibility of contamination can be reduced. Further, before the plurality of accommodation spaces 211 are separated into individual spaces, the RFID module 230 can communicate using the metal film 222. On the other hand, after the plurality of accommodation spaces 211 are separated, the RFID module 230 is no longer able to communicate using the metal film 222.

[1.2.3 Variations]
Embodiment 2 is not limited to the above configuration. The second embodiment can be modified in various ways depending on the design, etc., as long as the object can be achieved. Next, a container with an RFID function according to a modified example of the second embodiment will be described. This modification differs from the RFID function-equipped container 200 of the second embodiment in that it includes a lid 220A shown in FIG. 18. FIG. 18 is a bottom view of a configuration example of a lid 220A of a container with an RFID function according to a modified example of the second embodiment.

The lid 220A in FIG. 18 is attached to the main body 210 so as to cover the openings of the plurality of accommodation spaces 211. The lid 220A in FIG. 18 is removably attached to the main body 210. The lid 220A is peeled off from the main body 210 when the content N100 is taken out from the storage space 211 of the main body 210. The lid 220A is entirely flexible.

The lid 220A in FIG. 17 includes a base material 221A and a metal film 222A. The metal film 222A is located on the entire surface of the lid 220 on the main body 210 side, and comprehensively covers the plurality of accommodation spaces 211 of the main body 210. The lid 220A in FIG. 17 has a plurality of small lid portions 225a to 225d, similar to the lid 220 in FIG. 16. The four small lid portions 225a to 225d are arranged in a 2×2 matrix. As described above, in the lid 220A, between the adjacent small lid parts 225a and 225b, between the adjacent small lid parts 225a and 225c, between the adjacent small lid parts 225c and 225d, and between the adjacent small lid parts 225b and 225d. Perforations 224a to 224d are formed in each of the holes 224a to 224d. Each of the perforations 224a to 224d is composed of a plurality of slits. By appropriately setting the size of the plurality of slits and the interval between the plurality of slits, each of the perforations 224a to 224d is configured to substantially electrically isolate adjacent small lid portions.

The perforations 224a allow the portions of the metal film 222A corresponding to the small lid portions 225a and 225b to be used as electrically isolated antenna patterns. The perforations 224b allow the portions of the metal film 222A corresponding to the small lid portions 225a and 225c to be used as electrically isolated antenna patterns. The perforations 224c allow the portions of the metal film 222A corresponding to the small lid portions 225c and 225d to be used as electrically isolated antenna patterns. The perforations 224d allow the portions of the metal film 222A corresponding to the small lid portions 225b and 225d to be used as electrically isolated antenna patterns.

As shown in FIG. 18, the RFID module 230 is located outside a predetermined region R200 in the lid 220A and is coupled to the metal film 222A. The RFID module 230 is located at a portion of the lid 220A that faces the flange portion 213 of the main body 210. The RFID module 230 is coupled to the metal film 222A in the lid 220A so as to straddle the perforation 224b. More specifically, the RFID module 230 is located on the lid 220A such that the first and second electrodes 231 and 232 are respectively coupled to portions of the metal film 222A that correspond to the small lid portions 225a and 225c, respectively. In this case, portions of the metal film 222A corresponding to the small lid portions 225a and 225c, respectively, function as the first and second antenna patterns. The first and second electrodes 231 and 232 are capacitively coupled to the first and second antenna patterns, respectively.

In this modification, the first and second antenna patterns of the metal film 222A function as dipole antennas for the RFID module 230 before the container with the RFID function is separated into small containers. That is, before the plurality of accommodation spaces 211 are separated into individual spaces, the RFID module 230 can communicate using the metal film 222A. On the other hand, when the container with the RFID function is separated into small containers, the metal film 222A is separated at the perforations 224, making it impossible to maintain the coupling between at least one of the first and second antenna patterns and the RFID module 230. . In some cases, the RFID module 230 falls off the lid 220A. As a result, the metal film 222A no longer functions as a dipole antenna for the RFID module 230. Therefore, after the container with the RFID function is separated into small containers, the RFID function no longer functions. That is, after the plurality of accommodation spaces 211 are separated, the RFID module 230 cannot communicate using the metal film 222A.

In the modification described above, the main body 210 includes a pair of small main body parts 215a and 215b each having a housing space 211, and a first perforation 214a for separating the pair of small main body parts 215a and 215b. The lid 220 has a pair of small lid parts 225a, 225b corresponding to the pair of small main body parts 215a, 215b, respectively, and a second perforation 224a for separating the pair of small lid parts 225a, 225b. The second perforation 224a electrically separates the portions of the metal film 222 that correspond to the pair of small lids 225a and 225b. The RFID module 230 is located on the lid 220A so as to straddle the second perforation 224a. With this configuration, in a container in which a lid 220A having a metal film 222A is attached to a main body 210 having a plurality of accommodation spaces 211 each accommodating contents N100, the RFID module 230 can accommodate contents N100 while suppressing deterioration in design. The possibility of contamination can be reduced. Furthermore, before the plurality of accommodation spaces 211 are separated into individual spaces, the RFID module 230 can communicate using the metal film 222A. On the other hand, after the plurality of accommodation spaces 211 are individually separated, the RFID module 230 is no longer able to communicate using the metal film 222A.

[1.3 Embodiment 3]
[1.3.1 Configuration]
FIG. 19 is an exploded perspective view of a configuration example of a container 300 with an RFID function according to the third embodiment.

The container 300 with an RFID function shown in FIG. 19 includes a main body 310, a lid 320, and an RFID module 330. RFID module 330 is the same as RFID module 130 of the first embodiment.

The main body 310 in FIG. 19 has a storage space 311 for the contents N100. Main body 310 has electrical insulation properties. The main body 310 is formed from, for example, paper, a resin material, or a dielectric material such as glass. The resin material includes, for example, styrofoam. The main body 310 in FIG. 19 has a cylindrical shape with a bottom. The main body 310 in FIG. 19 has a cylindrical shape whose diameter decreases toward the bottom.

The lid 320 in FIG. 19 is attached to the main body 310 so as to cover the opening of the accommodation space 311. The lid 320 in FIG. 19 is removably attached to the main body 310. The lid 320 is peeled off from the main body 310 when the contents N100 are taken out from the accommodation space 311 of the main body 310. The lid 320 is entirely flexible. The lid 320 has a main portion 320a and a handle portion 320b. The main portion 320a covers the opening of the accommodation space 311. The main portion 320a has a circular shape that covers the entire upper surface of the main body 310. The handle portion 320b projects outward from the main portion 320a. The handle portion 320b facilitates the operation of peeling off the lid 320 from the main body 310. The handle portion 320b has a triangular shape whose width becomes narrower as it protrudes from the main portion 320a. The lid 320 is attached to the periphery of the opening of the accommodation space 311 of the main body 310 with adhesive. The adhesive is applied to an annular region R310 of the main portion 320a of the lid 320 that faces the peripheral edge of the opening of the accommodation space 311.

Lid 320 includes a base material 321 and a metal film 322. The base material 321 covers the opening of the accommodation space 311. In particular, the base material 321 entirely covers the opening of the accommodation space 311 and the peripheral portion of the opening of the accommodation space 311. The outer shape of the base material 321 defines the outer shape of the lid 320. The base material 321 is formed from a dielectric material such as paper or plastic, for example. The metal film 322 covers the opening of the accommodation space 311 of the main body 310. The metal film 322 entirely covers the opening of the accommodation space 311 and the peripheral portion of the opening of the accommodation space 311 . The metal film 322 is on the surface of the base material 321 on the main body 310 side. The metal film 322 may have the effect of preventing changes in the contents due to external factors. In this way, the metal film 322 protects the contents N100 by covering the opening of the accommodation space 311. Examples of the material for the metal film 322 include aluminum and an alloy containing aluminum.

FIG. 20 is a bottom view of the lid 320. As shown in FIG. 20, the metal film 322 is divided into multiple parts. More specifically, the metal film 322 is divided into first and second side parts 322a and 322b corresponding to the outer edge of the metal film 322, and a central part 322c that covers the opening of the accommodation space 311. The central portion 322c includes a predetermined region R300 in the metal film 322 that covers the opening of the accommodation space 311. The first side portion 322a includes a first portion 322a1 located on the main portion 320a of the lid 320 and a second portion 322a2 located on the handle portion 320b of the lid 320. The second side portion 322b includes a first portion 322b1 located on the main portion 320a of the lid 320 and a second portion 322b2 located on the handle portion 320b of the lid 320. In the metal film 322, the first and second side portions 322a, 322b and the center portion 322c are electrically isolated from each other. The first and second sides 322a and 322b can be used as an antenna pattern for the RFID module 330. In FIG. 20, the first and second side portions 322a and 322b constitute first and second antenna patterns that are electrically independent from each other. In this embodiment, the first side portion 322a may be referred to as a first antenna pattern 322a, and the second side portion 322b may be referred to as a second antenna pattern 322b.

The metal film 322 is divided by a slit 323 formed in the metal film 322 into first and second side parts 322a, 322b and a central part 322c that covers the opening of the accommodation space 311. Therefore, the shapes of the first and second antenna patterns 322a and 322b are defined by the slits 323 formed in the metal film 322. The slit 323 is arranged in the metal film 322 so as to avoid a predetermined region R300 that covers the opening of the accommodation space 311 of the main body 310. Thereby, the antenna patterns 322a and 322b can be provided without affecting the protection function of the metal film 322 for the contents N100. The slit 323 in FIG. 20 includes a first extension part 323a, a frame part 323b, and a second extension part 323c. The frame portion 323b has an annular shape surrounding the predetermined region R100. The outer shape of the frame portion 323b is concentric with the main portion 320a of the lid 320. Each of the first and second extensions 323a, 323c extends outward from the lid 320 from the frame 323b. In particular, the first extension portion 323a extends from the frame portion 323b so as to divide the handle portion 320b of the lid 320 into two. The second extension 323c extends from the frame 323b in the opposite direction to the first extension 323a. The first and second extensions 323a and 323c are aligned on a straight line. In the slit 323, the frame portion 323b is a first portion that is formed to surround the opening of the accommodation space 311 and electrically isolates the first and second antenna patterns 322a and 322b from the predetermined region R300. The first and second extensions 323a and 323c are second portions formed at the edges of the opening of the accommodation space 311 to electrically isolate the first and second antenna patterns 322a and 322b. Note that the slit 323 penetrates the metal film 322 but does not penetrate the base material 321.

As shown in FIG. 20, the RFID module 330 is located outside a predetermined region R300 in the lid 320 and is coupled to the metal film 122. That is, the RFID module 330 is located outside the opening of the housing space 311 in the lid 320 and is coupled to the metal film 322 . The RFID module 330 is located in the handle portion 320b of the lid 320. When the containers 300 with an RFID function are stacked upon each other during transportation or display of the containers 300 with an RFID function, the main bodies 310 overlap. In the container 300 with an RFID function, the RFID module 330 is located in the handle portion 320b of the lid 320, as described above. Therefore, the RFID module 330 is less susceptible to influence from another container 300 with an RFID function, particularly from the contents N100, than when the RFID module 330 is located in the main portion 320a of the lid 320. Therefore, in the RFID function-equipped container 300 of the present embodiment, when the RFID function-equipped containers 300 are stacked, the main bodies 310 overlap, so that the possibility of impairing the function of the RFID module 330 can be reduced.

The RFID module 330 is coupled to the metal film 322 at the handle portion 320b of the lid 320 so as to straddle the first extension portion 323a of the slit 323. More specifically, the RFID module 330 is located on the lid 320 such that the first and second electrodes 331, 332 are respectively coupled to the second portions 322a2, 322b2 of the first and second antenna patterns 322a, 322b. . In this embodiment, the first and second electrodes 331 and 332 are capacitively coupled to the first and second antenna patterns 322a and 322b, respectively.

Note that in this embodiment as well, the lid 320 may include a protective film that covers the metal film 322. RFID module 330 may be between the protective film and metal film 322. Thereby, the possibility of the RFID module 330 falling off the lid 320 can be reduced.

[1.3.2 Effects, etc.]
As described above, the container 300 with an RFID function includes an electrically insulating main body 310 having a storage space 311 for the contents N100, and a metal film 322, which is attached to the main body 310 so as to cover the opening of the storage space 311. The RFID module 330 includes a lid 320 and a first and second electrodes 331 and 332 attached to the lid 320 so as to be outside the opening of the housing space 311 and coupled to the metal film 322.

In the container 300 with an RFID function, an RFID module 330 is coupled to the metal film 322 of the lid 320, thereby realizing a function as an RFID tag. Since the metal film 322 of the lid 320 is used to protect the contents N100, there is no need to separately provide an antenna or the like just for the RFID function. Since the RFID module 330 is located outside the opening of the storage space 311 in the lid 320, even if the RFID module 330 falls off the lid 320 unintentionally, the possibility of the RFID module 330 being mixed into the contents N100 is reduced. can. In this way, the RFID function-equipped container 300 of the present embodiment is a container in which the lid 320 having the metal film 322 is attached to the main body 310 that accommodates the contents N100. It is possible to reduce the possibility of contamination with the contents N100.

In the container 300 with an RFID function, the metal film 322 includes an antenna pattern (first and second antenna patterns 322a, 322b). The RFID module 330 is on the lid 320 such that the first and second electrodes 331, 332 are coupled to the antenna patterns (first and second antenna patterns 322a, 322b). With this configuration, since the metal film 322 has an antenna pattern, the efficiency of wireless communication in the RFID module 330 can be improved.

In the container with RFID function 300, the antenna pattern includes first and second antenna patterns 322a and 322b that are electrically independent from each other. The RFID module 330 is located on the lid 320 such that first and second electrodes 331 and 332 are coupled to first and second antenna patterns 322a and 322b, respectively. This configuration can form a dipole antenna.

In the container 300 with an RFID function, the shapes of the first and second antenna patterns 322a and 322b are defined by the slits 323 formed in the metal film 322. The slit 323 is arranged in the metal film 322 so as to avoid a predetermined region R300 that covers the opening of the accommodation space 311. With this configuration, the first and second antenna patterns 322a and 322b can be provided without affecting the protection function of the metal film 322 for the contents N100.

In the container 300 with an RFID function, the slit 323 includes a first portion 323b that is formed to surround the opening of the accommodation space 311 and electrically isolates the first and second antenna patterns 322a and 322b from the predetermined region R300; The second portions 323a and 323c are formed at the edge of the opening of the space 311 to electrically isolate the first and second antenna patterns 322a and 322b. This configuration can reduce the possibility that the first and second antenna patterns 322a and 322b will be affected by the content N100.

In the container 300 with an RFID function, the lid 320 has a handle portion 320b that projects outward from the opening edge of the storage space 311. The RFID module 330 is located in the handle portion 320b. This configuration can reduce the possibility that the function of the RFID module 330 will be impaired when the containers 300 with RFID function are stacked on top of each other.

In the container 300 with an RFID function, the RFID module 330 is located on the main body 310 side of the lid 320. With this configuration, the design of the RFID-functional container 300 is less likely to be impaired. This configuration makes it difficult for the RFID module 330 to fall off.

[1.3.3 Modification]
Embodiment 3 is not limited to the above configuration. The third embodiment can be modified in various ways depending on the design, etc., as long as the object can be achieved. Modifications of the third embodiment are listed below. The modified examples described below can be applied in combination as appropriate.

[1.3.3.1 Modification 1]
FIG. 21 is a bottom view of a configuration example of a lid 320A of a container with an RFID function according to Modification 1 of Embodiment 3. The lid 320A includes a metal film 322A in which a slit 323A is formed.

The slit 323A in FIG. 21 is arranged so as to avoid a predetermined region R300 covering the opening of the housing space 311 of the main body 310 in the metal film 322A. The slit 323A in FIG. 21 has a different shape from the slit 323 in FIG. 20. The slit 323A in FIG. 21 includes a first extension 323a, an arcuate portion 323d, and second and third extensions 323e and 323f. The arc portion 323d extends along the outer periphery of the predetermined region R300. In FIG. 21, the central angle of the circular arc portion 323d is approximately 180 degrees. Each of the first to third extension parts 323a, 323e, and 323f extends from the arcuate part 323d to the outside of the lid 320A. In particular, the first extension part 323a extends from the center of the arcuate part 323d so as to bisect the handle part 320b of the lid 320A. The second and third extensions 323e and 323f extend outward from the lid 320A from both ends of the arcuate portion 323d. The second and third extensions 323e and 323f are aligned on a straight line.

The metal film 322A is divided by the slit 323A into first and second side parts 322e and 322f corresponding to 1/4 of the outer edge of the metal film 322A, and a central part 322d that covers the opening of the accommodation space 311. The central portion 322d includes a predetermined region R300 of the metal film 322 that covers the opening of the accommodation space 311 and 1/2 of the outer edge of the metal film 322A. The first side portion 322e includes a first portion 322e1 located on the main portion 320a of the lid 320A and a second portion 322e2 located on the handle portion 320b of the lid 320A. The second side portion 322f includes a first portion 322f1 located on the main portion 320a of the lid 320A and a second portion 322f2 located on the handle portion 320b of the lid 320A. In the metal film 322A, the first and second side portions 322e, 322f and the center portion 322d are electrically isolated from each other. The first and second sides 322e and 322f can be used as an antenna pattern for the RFID module 330. In FIG. 21, the first and second side portions 322e and 322f constitute first and second antenna patterns that are electrically independent from each other. The first side portion 322e may be referred to as a first antenna pattern 322e, and the second side portion 322f may be referred to as a second antenna pattern 322f.

The shapes of the first and second antenna patterns 322e and 322f are defined by a slit 323A formed in the metal film 322A. In the slit 323A, the arcuate portion 323d and the second and third extension portions 323e and 323f are formed to surround the opening of the accommodation space 311 and electrically connect the first and second antenna patterns 322e and 322f from the predetermined region R300. This is the first part to be separated. The first extension part 323a is a second part formed at the edge of the opening of the accommodation space 311 to electrically isolate the first and second antenna patterns 322e and 322f.

In the first modification, the lengths of the first and second antenna patterns 322e and 322f can be set to desired lengths by appropriately setting the length of the circular arc portion 323d and the positions of the second and third extension portions 323e and 323f. It is possible to set. This improves the degree of freedom in determining the length of the antenna pattern. Therefore, it is more likely that the length of the antenna pattern can be set to a length suitable for the wavelength corresponding to the communication frequency of the RFID module 330. A suitable length for the wavelength corresponding to the communication frequency of the RFID module 330 is, for example, 1/2 of the wavelength corresponding to the communication frequency of the RFID module 330.

[1.3.3.2 Modification 2]
FIG. 22 is a bottom view of a configuration example of a lid 320B of a container with an RFID function according to a second modification of the third embodiment. The lid 320B includes a metal film 322B in which a slit 323B is formed.

The slit 323B in FIG. 22 is arranged in the metal film 322B so as to avoid a predetermined region R300 that covers the opening of the accommodation space 311 of the main body 310. The slit 323B in FIG. 22 has a different shape from the slit 323 in FIG. 20. The slit 323B in FIG. 22 includes a first extension part 323a and a frame part 323b, but does not include a second extension part 323c.

The slit 323B divides the metal film 322B into a central portion 322g that covers the opening of the accommodation space 311 and a peripheral portion 322h that surrounds the central portion 322g. The central portion 322g includes a predetermined region R300 that covers the opening of the accommodation space 311 in the metal film 322B. The peripheral portion 322h has a shape that surrounds the central portion 322g, but is separated at the first extension portion 323a. Accordingly, the peripheral portion 322h has first and second ends 322ha and 322hb facing each other with the first extension portion 323a in between. Periphery 322h can be used as a loop antenna pattern for RFID module 330. Below, the peripheral portion 322h may be referred to as a loop antenna pattern 322h.

The RFID module 330 is coupled to the metal film 322B in the lid 320B so as to straddle the first extension 323a of the slit 323B. More specifically, the RFID module 330 is attached to the handle portion 320b of the lid 320B such that the first and second electrodes 331 and 332 are respectively coupled to the first end 322ha and second end 322hb of the loop antenna pattern 322h. be. The first and second electrodes 331 and 332 are capacitively coupled to a first end 322ha and a second end 322hb of the loop antenna pattern 322h, respectively.

In the lid 320B of FIG. 22, the loop antenna pattern 322h of the metal film 322B functions as a loop antenna for the RFID module 330.

In the second modification described above, the metal film 322B includes an antenna pattern (loop antenna pattern 322h). The RFID module 330 is on the lid 320B such that the first and second electrodes 331, 332 are coupled to the antenna pattern (loop antenna pattern 322h). With this configuration, since the metal film 322B has an antenna pattern, the efficiency of wireless communication in the RFID module 330 can be improved.

In Modification 2, the antenna pattern includes a loop antenna pattern 322h. The RFID module 330 is located on the lid 320B such that the first and second electrodes 331 and 332 are respectively coupled to the first and second ends 322ha and 322hb of the loop antenna pattern 322h. This configuration can form a loop antenna.

In Modification 2, the shape of the loop antenna pattern 322h is defined by a slit 323B formed in the metal film 322B. The slit 323B is arranged in the metal film 322B so as to avoid a predetermined region R300 that covers the opening of the accommodation space 311. With this configuration, the loop antenna pattern 322h can be provided without affecting the protection function of the content N100 by the metal film 322B.

[1.3.3.3 Modification 3]
FIG. 23 is a bottom view of a configuration example of a lid 320C of a container with an RFID function according to a third modification of the third embodiment. The lid 320C includes a metal film 322C in which a slit 323C is formed. The slit 323C in FIG. 23 is arranged in the metal film 322C so as to avoid a predetermined region R300 that covers the opening of the accommodation space 311 of the main body 310. The slit 323C in FIG. 23 has a different shape from the slit 323 in FIG. 20. The slit 323C in FIG. 23 includes a first extension portion 323a and a circular arc portion 323g. The arc portion 323g extends along the outer periphery of the predetermined region R300. In FIG. 23, the central angle of the circular arc portion 323g is approximately 90 degrees. The first extension portion 323a extends from the arcuate portion 323g to the outside of the lid 320C. In particular, the first extension part 323a extends from the center of the arcuate part 323g so as to bisect the handle part 320b of the lid 320C.

The slit 323C forms a loop antenna pattern 322i around the slit 323C in the metal film 322C. The loop antenna pattern 322i has a shape that surrounds the slit 323C, but is separated at the first extension 323a of the slit 323C. Accordingly, the loop antenna pattern 322i has first and second ends 322ia and 322ib that face each other with the first extension 323a in between.

The RFID module 330 is coupled to the metal film 322C in the lid 320C so as to straddle the first extension 323a of the slit 323C. More specifically, the RFID module 330 is on the lid 320C such that the first and second electrodes 331, 332 are respectively coupled to the first end 322ia and the second end 322ib of the loop antenna pattern 322i. Also in FIG. 23, the RFID module 330 is located on the handle portion 320b of the lid 320C. The first and second electrodes 331 and 332 are capacitively coupled to a first end 322ia and a second end 322ib of the loop antenna pattern 322i, respectively.

In the lid 320C of FIG. 23, the loop antenna pattern 322i of the metal film 322C functions as a loop antenna for the RFID module 330.

[1.3.3.4 Modification 4]
FIG. 24 is a bottom view of a configuration example of a lid 320D of a container with an RFID function according to a fourth modification of the third embodiment. The lid 320D includes a metal film 322D in which a slit 323D is formed. The slit 323D in FIG. 24 is arranged in the metal film 322D so as to avoid a predetermined region R300 that covers the opening of the accommodation space 311 of the main body 310. The slit 323D in FIG. 24 has a different shape from the slit 323 in FIG. 20. The slit 323D in FIG. 24 is formed along a predetermined direction at a portion of the metal film 322D that corresponds to the edge of the opening of the accommodation space 311. More specifically, the slit 323D in FIG. 24 is formed in the metal film 322D at a portion corresponding to the handle portion 320b of the lid 320D. The predetermined direction is perpendicular to the direction in which the handle portion 320b protrudes from the main portion 320a of the lid 320.

The slit 323D divides the metal film 322D into a first portion 322j corresponding to the tip of the handle portion 320b of the lid 320D and a remaining second portion 322k of the metal film 322D. The second portion 322k includes a predetermined region R300 that covers the opening of the accommodation space 311. In the metal film 322D, the first and second portions 322j and 322k are electrically isolated from each other by a slit 323D. The first and second parts 322j and 322k can be used as an antenna pattern for the RFID module 330. In FIG. 24, the first and second portions 322j and 322k constitute first and second antenna patterns that are electrically independent from each other. Hereinafter, the first portion 322j may be referred to as a first antenna pattern 322j, and the second portion 322k may be referred to as a second antenna pattern 322k.

The RFID module 330 is coupled to the metal film 322D in the lid 320D so as to straddle the slit 323D. More specifically, the RFID module 330 is on the lid 320D such that the first and second electrodes 331, 332 are coupled to the first and second antenna patterns 322j, 322k, respectively. Also in FIG. 24, the RFID module 330 is located at the handle portion 320b of the lid 320D. The first and second electrodes 331 and 332 are capacitively coupled to the first and second antenna patterns 322j and 322k, respectively.

In the lid 320D of FIG. 24, the first and second antenna patterns 322j and 322k of the metal film 322D function as dipole antennas for the RFID module 330.

In the lid 320D of FIG. 24, a slit 323D is formed along a predetermined direction. In particular, the slits 323D are formed in a straight line along a predetermined direction. Therefore, it becomes possible to collectively form the slits 323D in a plurality of lids 320D. Next, an example of a method for manufacturing the lid 320D will be described with reference to FIG. 25. FIG. 25 is an explanatory diagram of an example of a method for manufacturing the lid 320D of FIG. 24. An example of a method for manufacturing the lid 320D includes a first step, a second step, and a third step.

In the first step, a sheet 340 of a size capable of forming a plurality of lids 320D is prepared. In FIG. 25, the sheet 340 is large enough to form six lids 320D. More specifically, the sheet 340 includes regions R320 where the lids 320D are to be formed, arranged in a 2×3 matrix. The sheet 340 is configured by forming a metal layer, which is the basis of the metal film 322D of the lid 320D, on a base material layer which is the basis of the base material 321 of the lid 320D. A region R321 other than the intended formation region R320 on the sheet 340 is a region that is not used for the lid 320D.

In the second step, grooves 350 are formed in the metal layer of the sheet 340 prepared in the first step. A portion of the groove 350 corresponding to each formation planned region R320 becomes a slit 323D. In FIG. 25, one groove 350 along a predetermined direction is formed in a plurality of (three in FIG. 25) planned formation regions R320 lined up in a predetermined direction. As a result, a plurality of (three in FIG. 25) slits 323D are formed at once.

In the third step, a plurality of RFID modules 330 are respectively arranged in the formation region R320 of the plurality of lids 320D.

After the third step, the sheet 340 is cut and separated into a plurality of lids 320D. The cutting of the sheet 340 may be performed after the sheet 340 is attached to the plurality of bodies 310 together.

In the fourth modification described above, the slit 323D is formed along a predetermined direction at a portion of the metal film 322D that corresponds to the edge of the opening of the accommodation space 311, and connects the first and second antenna patterns 322j and 322k with electricity. to separate. This configuration makes it possible to form slits 323D in multiple lids 320D at once.

[1.4 Embodiment 4]
[1.4.1 Configuration]
FIG. 26 is an exploded perspective view of a configuration example of a container 400 with an RFID function according to the fourth embodiment. The container 400 with an RFID function shown in FIG. 26 includes a main body 410, a lid 420, and an RFID module 430. RFID module 430 is the same as RFID module 130 of the first embodiment.

The main body 410 in FIG. 26 has a storage space 411 for the contents N100. Main body 410 has electrical insulation properties. The main body 410 is formed from, for example, paper, a resin material, or a dielectric material such as glass. The resin material includes, for example, styrofoam. The main body 410 in FIG. 26 has a bottomed cylindrical portion 412 and a flange portion 413. The cylindrical portion 412 defines a housing space 411 . The cylindrical portion 412 in FIG. 26 has a cylindrical shape. The flange portion 413 projects outward from the opening edge of the housing space 411 . The outer shape of the flange portion 413 in FIG. 26 is square.

The lid 420 in FIG. 26 is attached to the main body 410 so as to cover the opening of the accommodation space 411. The lid 420 in FIG. 26 is removably attached to the main body 410. The lid 420 is peeled off from the main body 410 when the contents N100 are taken out from the storage space 411 of the main body 410. The lid 420 is entirely flexible. The lid 420 is attached to the periphery of the opening of the accommodation space 411 of the main body 410 with adhesive. In FIG. 26, lid 420 is attached to flange portion 413 of body 410 with adhesive. The adhesive is applied to an area of the lid 420 that faces the flange portion 413 .

The lid 420 in FIG. 26 includes an outer layer portion 420a and an inner layer portion 420b.

The outer layer portion 420a includes a base material 421 and a metal film 422. The base material 421 covers the opening of the accommodation space 411. In particular, the base material 421 completely covers the opening of the housing space 411 and the flange portion 413. The outer shape of the base material 421 is square. The base material 421 is formed from a dielectric material such as paper or plastic, for example. The metal film 422 covers the opening of the accommodation space 411 of the main body 410. The metal film 422 completely covers the opening of the housing space 411 and the flange portion 413. The metal film 422 is on the surface of the base material 421 on the main body 410 side. The metal film 422 is located not on the entire surface of the base material 421 on the main body 410 side but at the center. The metal film 422 may have the effect of preventing changes in the contents due to external factors. In this way, the metal film 422 protects the contents N100 by covering the opening of the accommodation space 411. Examples of the material for the metal film 422 include aluminum and an alloy containing aluminum.

The inner layer portion 420b includes an insulating material 423 and first and second electrode patterns 441 and 442. The insulating material 423 faces the metal film 422. The insulating material 423 has a size that covers the metal film 422. The insulating material 423 is made of a dielectric material such as plastic, for example. The outer shape of the insulating material 423 is equal to the outer shape of the base material 421. The first and second electrode patterns 441 and 442 are formed on an insulating material 423 and coupled to the metal layer 422. More specifically, the first and second electrode patterns 441 and 442 are formed on the surface of the insulating material 423 opposite to the metal film 422 (the bottom surface in FIG. 26). The first and second electrode patterns 441 and 442 are formed, for example, by patterning metal foil such as copper foil using photolithography.

The first and second electrode patterns 441 and 442 are arranged in the metal film 422 so as to avoid a predetermined region R400 that covers the opening of the accommodation space 411 of the main body 410. The first electrode pattern 441 includes a first electrode part 441a and a first wiring part 441b. The first electrode portion 441a is located at a portion of the insulating material 423 that overlaps with the metal film 422. The first electrode portion 441a is capacitively coupled to the metal film 422. The first electrode part 441a faces the metal film 422 and is larger than the first electrode 431 of the RFID module 430. The first wiring portion 441b extends from the first electrode portion 441a to a portion of the insulating material 423 that does not overlap with the metal film 422. The first wiring section 441b is used to connect the first electrode section 441a and the first electrode 431 of the RFID module 430. The second electrode pattern 442 includes a second electrode part 442a and a second wiring part 442b. The second electrode portion 442a is located at a portion of the insulating material 423 that overlaps with the metal film 422. The second electrode portion 442a is capacitively coupled to the metal film 422. The second electrode part 442a faces the metal film 422 and is larger than the second electrode 432 of the RFID module 430. The second wiring portion 442b extends from the second electrode portion 442a to a portion of the insulating material 423 that does not overlap with the metal film 422. The second wiring section 442b is used to connect the second electrode section 442a and the second electrode 432 of the RFID module 430.

The inner layer portion 420b is bonded to the outer layer portion 420a such that the insulating material 423 of the inner layer portion 420b covers the metal film 422 of the outer layer portion 420a.

In the container 400 with an RFID function, a slit is not provided in the metal film 422. When attempting to provide a slit in the metal film 422, the thickness of the metal film 422 may be limited. In the container 400 with an RFID function, there is no need to perform processing such as providing slits in the metal film 422, so the degree of freedom in designing the metal film 422 can be improved. For example, the thickness of the metal film 422 can be set to a desired thickness, thereby improving the effect of preventing changes in the contents due to external factors.

Next, the position of the RFID module 430 will be explained with reference to FIG. 27. FIG. 27 is a plan view of a configuration example of the lid 420. RFID module 430 is located outside predetermined region R400 in lid 420. More specifically, the RFID module 430 is located at a portion of the lid 420 that faces the flange portion 413 of the main body 410. Furthermore, the RFID module 430 is arranged in a portion of the insulating material 423 that does not overlap with the metal film 422. The RFID module 430 is disposed on the insulating material 423 such that the first and second electrodes 431 and 432 are coupled to the first and second wiring parts 441b and 442b of the first and second electrode patterns 441 and 442, respectively. The RFID module 430 is coupled to the metal film 422 through first and second electrode patterns 441 and 442. This enables the RFID module 430 to communicate using the metal film 422.

In this embodiment, the RFID module 430 is located at a portion of the lid 420 that faces the flange portion 413 of the main body 410. Therefore, compared to the case where the RFID module 430 is located in a portion of the lid 420 that overlaps with the accommodation space 411 of the main body 410, the RFID module 430 is less susceptible to the influence from another container 400 with an RFID function, especially the influence from the contents N100. Hard to accept. Therefore, the possibility of impairing the function of the RFID module 430 can be reduced.

[1.4.2 Effects, etc.]
In the fourth embodiment described above, the lid 420 has first and second electrode patterns 441 and 442 coupled to the metal film 422. First and second electrodes 431 and 432 of the RFID module 430 are coupled to first and second electrode patterns 441 and 442, respectively. This configuration eliminates the need for processing such as providing slits in the metal film 422, so that the degree of freedom in designing the metal film 422 can be improved. For example, the thickness of the metal film 422 can be set to a desired thickness, thereby improving the effect of preventing changes in the contents due to external factors.

In the fourth embodiment, the lid 420 includes an insulating material 423 facing the metal film 422 and first and second electrode patterns 441 and 442. The first and second electrode patterns 441 and 442 are disposed on the insulating material 423. The first and second electrode patterns 441 and 442 face the metal film 422. The RFID module 430 is on the insulating material 423 such that first and second electrodes 431 and 432 are coupled to first and second electrode patterns 441 and 442, respectively. This configuration eliminates the need for processing such as providing slits in the metal film 422, so that the degree of freedom in designing the metal film 422 can be improved. For example, the thickness of the metal film 422 can be set to a desired thickness, thereby improving the effect of preventing changes in the contents due to external factors.

In the fourth embodiment, the first electrode pattern 441 includes a first electrode portion 441a that faces the metal film 422 and is larger than the first electrode 431 of the RFID module 430, and a first electrode portion 441a and the first electrode 431 of the RFID module 430. and a first wiring section 441b that connects to the first wiring section 441b. The second electrode pattern 442 includes a second electrode part 442a that faces the metal film 422 and is larger than the second electrode 432 of the RFID module 430, and a second electrode part 442a that connects the second electrode part 442a and the second electrode 432 of the RFID module 430. and a wiring section 442b. This configuration can strengthen the bond between the RFID module 430 and the metal film 422.

[1.4.3 Variations]
Embodiment 4 is not limited to the above configuration. Embodiment 4 can be modified in various ways depending on the design, etc., as long as the object can be achieved. Modifications of the fourth embodiment are listed below. The modified examples described below can be applied in combination as appropriate.

In one variation, the lid 420 may include a protective membrane. The protective film covers the surface of the insulating material 423 opposite to the metal film 422. The material of the protective film is, for example, a hot melt agent such as ethylene vinyl acetate (EVA). In this case, the RFID module 430 may be between the protective film and the insulating material 423. Thereby, the possibility of the RFID module 430 falling off the lid 420 can be reduced.

In a modification, the first and second electrode patterns 441 and 442 may be on the surface of the insulating material 423 on the metal film 422 side. The first and second electrode patterns 441 and 442 may be formed on the insulating material 423 so as to be coupled to the metal film 422.

In one modification, the RFID module 430 may be located on the surface of the insulating material 423 on the metal film 422 side. The RFID module 430 may be mounted on the insulating material 423 such that the first and second electrodes 431 and 432 are coupled to the first and second electrode patterns 441 and 442, respectively.

[1.5 Embodiment 5]
[1.5.1 Configuration]
FIG. 28 is an exploded perspective view of a configuration example of a container 500 with an RFID function according to the fifth embodiment. The container 500 with an RFID function shown in FIG. 28 includes a main body 510, a lid 520, and an RFID module 530. RFID module 530 is the same as RFID module 130 of the first embodiment.

The main body 510 in FIG. 28 has a storage space 511 for the contents N100. Main body 510 has electrical insulation properties. The main body 510 is formed from, for example, paper, a resin material, or a dielectric material such as glass. The resin material includes, for example, styrofoam. The main body 510 in FIG. 28 has a bottomed cylindrical portion 512 and a flange portion 513. The cylindrical portion 512 defines a housing space 511. The cylindrical portion 512 in FIG. 28 has a cylindrical shape. The flange portion 513 protrudes outward from the opening edge of the housing space 511. The outer shape of the flange portion 513 in FIG. 28 is square. The flange portion 513 has first to fourth corner portions 513a to 513d.

The lid 520 in FIG. 28 is attached to the main body 510 so as to cover the opening of the accommodation space 511. The lid 520 in FIG. 28 is removably attached to the main body 510. The lid 520 is peeled off from the main body 510 when the content N100 is taken out from the accommodation space 511 of the main body 510. The lid 520 is entirely flexible. The lid 520 is attached to the periphery of the opening of the accommodation space 511 of the main body 510 with adhesive. In FIG. 28, lid 520 is attached to flange portion 513 of body 510 with adhesive. The adhesive is applied to an area of the lid 520 that faces the flange portion 513.

In the container 500 with an RFID function according to the fifth embodiment, the main body 510 has first and second electrode patterns 541 and 542. First and second electrode patterns 541 and 542 are formed on the main body 510 and coupled to the metal layer 522. More specifically, the first and second electrode patterns 541 and 542 are formed on the surface of the flange portion 513 of the main body 510 opposite to the metal film 522 (the lower surface in FIG. 28). The first and second electrode patterns 541 and 542 are formed, for example, by patterning metal foil such as copper foil using photolithography.

The first and second electrode patterns 541 and 542 are arranged avoiding the opening of the accommodation space 511 of the main body 510. The first electrode pattern 541 includes a first electrode part 541a and a first wiring part 541b. The first electrode part 541a faces the metal film 522 and is larger than the first electrode 531 of the RFID module 530. The first electrode portion 541a is formed using the second corner portion 513b of the flange portion 513. Thereby, the area of the first electrode portion 541a can be increased, and the capacitive coupling between the metal film 522 and the first electrode portion 541a can be improved. The first wiring portion 541b extends from the first electrode portion 541a to the first corner portion 513a of the flange portion 513. The first wiring section 541b is used to connect the first electrode section 541a and the first electrode 531 of the RFID module 530. The second electrode pattern 542 includes a second electrode part 542a and a second wiring part 542b. The second electrode part 542a faces the metal film 522 and is larger than the second electrode 532 of the RFID module 530. The second electrode portion 542a is formed using the third corner portion 513c of the flange portion 513. Thereby, the area of the second electrode section 542a can be increased, and the capacitive coupling between the metal film 522 and the second electrode section 542a can be improved. The second wiring portion 542b extends from the second electrode portion 542a to the first corner portion 513a of the flange portion 513. The second wiring section 542b is used to connect the second electrode section 542a and the second electrode 523 of the RFID module 530.

In the container 500 with an RFID function, a slit is not provided in the metal film 522. When attempting to provide a slit in the metal film 522, the thickness of the metal film 522 may be limited. In the container 500 with an RFID function, it is not necessary to perform processing such as providing a slit in the metal film 522, so that the degree of freedom in designing the metal film 522 can be improved. For example, the thickness of the metal film 522 can be set to a desired thickness, and the effect of preventing changes in the contents due to external factors can be improved.

Next, the position of the RFID module 530 will be explained with reference to FIG. 29. FIG. 29 is a bottom view of main body 510. The RFID module 530 is located outside the opening of the accommodation space 511 in the main body 510. More specifically, the RFID module 530 is located on the flange portion 513 of the main body 510. The RFID module 530 is located at the first corner 513a of the flange portion 513 such that the first and second electrodes 531 and 532 are coupled to the wiring portions 541b and 542b of the first and second electrode patterns 541 and 542, respectively. . The RFID module 530 is coupled to the metal film 522 through first and second electrode patterns 541 and 542. This allows the RFID module 530 to communicate using the metal film 522.

In this embodiment, the RFID module 530 is located on the flange portion 513 of the main body 510. Therefore, compared to the case where the RFID module 530 is located in a portion of the lid 520 that overlaps with the storage space 511 of the main body 510, the RFID module 530 is less susceptible to the influence from another container 500 with an RFID function, especially the influence from the contents N100. Hard to accept. Therefore, the possibility of impairing the function of the RFID module 530 can be reduced.

[1.5.2 Effects, etc.]
As described above, the container 500 with an RFID function includes an electrically insulating main body 510 having a storage space 511 for the contents N100, and a metal film 522, and is attached to the main body 510 so as to cover the opening of the storage space 511. The RFID module 530 includes a lid 520 and a first and second electrodes 531 and 532 attached to the main body 510 so as to be outside the opening of the housing space 511 and coupled to the metal film 522.

In the container 500 with an RFID function, the RFID module 530 is coupled to the metal film 522 of the lid 520, thereby realizing the function as an RFID tag. Since the metal film 522 formed on the lid 520 is used to protect the contents N100, there is no need to separately provide an antenna or the like just for the RFID function. Since the RFID module 530 is located outside the opening of the housing space 511 in the main body 510, even if the RFID module 530 falls off from the main body 510 unintentionally, the possibility of the RFID module 530 being mixed into the contents N100 is reduced. can. As described above, the container 500 with an RFID function according to the present embodiment is a container in which the lid 520 having the metal film 522 is attached to the main body 510 that accommodates the contents N100, and the RFID module 530 is suppressed from deteriorating the design. It is possible to reduce the possibility of contamination with the contents N100.

In the container with RFID function 500, the main body 510 has first and second electrode patterns 541 and 542 coupled to the metal film 522. First and second electrodes 531 and 532 of the RFID module 530 are coupled to first and second electrode patterns 541 and 542, respectively. This configuration eliminates the need for processing such as providing slits in the metal film 522, so that the degree of freedom in designing the metal film 522 can be improved. For example, the thickness of the metal film 522 can be set to a desired thickness, and the effect of preventing changes in the contents due to external factors can be improved.

In the container 500 with an RFID function, the main body 510 has first and second electrode patterns 541 and 542. The first and second electrode patterns 541 and 542 face the metal film 522. The RFID module 530 is located on the main body 510 such that first and second electrodes 531 and 532 are coupled to first and second electrode patterns 541 and 542, respectively. This configuration eliminates the need for processing such as providing slits in the metal film 522, so that the degree of freedom in designing the metal film 522 can be improved. For example, the thickness of the metal film 522 can be set to a desired thickness, and the effect of preventing changes in the contents due to external factors can be improved. Furthermore, by peeling off the lid 520 from the main body 510, the metal film 522 is separated from the RFID module 530. Therefore, the RFID function is disabled. In other words, depending on whether or not the lid 520 is peeled off from the main body 510, the RFID function can be enabled or disabled.

In the fourth embodiment, the first electrode pattern 541 includes a first electrode portion 541a that faces the metal film 522 and is larger than the first electrode 531 of the RFID module 530, and a first electrode portion 541a and the first electrode 531 of the RFID module 530. and a first wiring section 541b connecting the first wiring section 541b and the first wiring section 541b. The second electrode pattern 542 includes a second electrode part 542a that faces the metal film 522 and is larger than the second electrode 532 of the RFID module 530, and a second electrode part 542a that connects the second electrode part 542a and the second electrode 532 of the RFID module 530. and a wiring section 542b. This configuration can strengthen the bond between the RFID module 530 and the metal film 522.

In the container 500 with an RFID function, the main body 510 has a flange portion 513 that projects outward from the opening edge of the accommodation space 511 . Metal film 522 covers flange portion 513. The RFID module 530 and the first and second electrode patterns 541 and 542 are located on the flange portion 513. This configuration can reduce the possibility that the function of the RFID module 530 will be impaired when the containers 500 with the RFID function are stacked one on top of the other.

[1.5.3 Variations]
Embodiment 5 is not limited to the above configuration. Embodiment 5 can be modified in various ways depending on the design, etc., as long as the object can be achieved. Modifications of the fifth embodiment are listed below. The modified examples described below can be applied in combination as appropriate.

In a modification, the first and second electrode patterns 541 and 542 may be on the surface of the flange portion 513 on the lid 520 side. The first and second electrode patterns 541 and 542 may be formed on the main body 510 so as to be coupled to the metal film 522.

In one modification, the RFID module 530 may be located on the surface of the flange portion 513 on the lid 520 side. The RFID module 530 may be disposed on the main body 510 such that the first and second electrodes 531 and 532 are coupled to the first and second electrode patterns 541 and 542, respectively.

[1.6 Embodiment 6]
[1.6.1 Configuration]
FIG. 30 is a perspective view of a configuration example of a container 600 with an RFID function according to the sixth embodiment. The RFID function container 600 in FIG. 30 is used, for example, in a system for identifying and managing whether the contents N100 of the RFID function container 600 have been used, rather than identifying and managing products by wireless communication. Note that the content N100 is, for example, an article to be traded. Content N100 can be a liquid, solid, sol, gel, or a combination thereof. Examples of the contents N100 include food, medicine, medical care, orthodontic equipment, and the like. Foods include foods that can be provided in containers, such as yogurt, pudding, and instant foods. Medical or orthotic devices include contact lenses.

The configuration of the RFID function-equipped container 600 according to the sixth embodiment will be further described below. As shown in FIG. 30, the RFID-functional container 600 includes a main body 610, a lid 620, and an RFID module 630.

FIG. 31 is a bottom view of a configuration example of the lid 620. FIG. 32 is a perspective view showing a state in which the lid 620 of the container 600 with an RFID function is peeled off from the main body 610.

As shown in FIG. 32, the main body 610 has a storage space 611 for the contents N100. Main body 610 has electrical insulation properties. The main body 610 is formed from a dielectric material such as paper, resin material, or glass, for example. The resin material includes, for example, styrofoam. The main body 610 has a bottomed cylindrical portion 612 and a flange portion 613. The cylindrical portion 612 defines a housing space 611 . The cylindrical portion 612 has a cylindrical shape. The flange portion 613 protrudes outward from the opening edge of the accommodation space 611. The outer shape of the flange portion 613 is square.

As shown in FIG. 30, the lid 620 is attached to the main body 610 so as to cover the opening of the accommodation space 611. The lid 620 in FIG. 30 is removably attached to the main body 610. The lid 620 is peeled off from the main body 610 when the contents N100 are taken out from the accommodation space 611 of the main body 610. The lid 620 is entirely flexible. Lid 620 includes a base material 621 and a metal film 622. The base material 621 covers the opening of the accommodation space 611. In particular, the base material 621 completely covers the opening of the housing space 611 and the flange portion 613. The outer shape of the base material 621 is square. The base material 621 is formed from a dielectric material such as paper or plastic, for example. The metal film 622 covers the opening of the accommodation space 611 of the main body 610. The metal film 622 completely covers the opening of the housing space 611 and the flange portion 613. The metal film 622 is on the surface of the base material 621 on the main body 610 side. The metal film 622 may have the effect of preventing changes in the contents due to external factors. In this way, the metal film 622 protects the contents N100 by covering the opening of the accommodation space 611. Examples of the material of the metal film 622 include aluminum and an alloy containing aluminum. The lid 620 is attached to the periphery of the opening of the accommodation space 611 of the main body 610 with adhesive. In FIG. 30, the lid 620 is attached to the flange portion 613 of the body 610 with adhesive. The adhesive is applied to an area of the lid 620 that faces the flange portion 613.

As shown in FIG. 31, the metal film 622 has a peeled part 622a and residual parts (first and second residual parts) 622b and 622c. The peeling portion 622a is a portion of the metal film 622 that is peeled off from the lid 620 and remains on the main body 610 when the lid 620 is peeled off from the main body 610. The peeling portion 622a is arranged in the metal film 622 so as to avoid a predetermined region R600 that covers the opening of the accommodation space 611 of the main body 610. The peeling portion 622a has an annular shape surrounding the predetermined region R600. The first and second remaining portions 622b and 622c are portions of the metal film 622 that remain without being peeled off from the lid 620 when the lid 620 is peeled off from the main body 610. The first remaining portion 622b is located inside the peeling portion 622a. The first remaining portion 622b corresponds to the central portion of the metal film 622. The first remaining portion 622b has a circular shape. The first remaining portion 622b includes a predetermined region R600 in the metal film 622 that covers the opening of the accommodation space 611 of the main body 610. The second remaining portion 622c is located outside the peeling portion 622a. The second remaining portion 622c corresponds to the peripheral portion of the metal film 622. A groove portion 623a forming a slit 623 is formed in the second remaining portion 622c. The groove portion 623a is located at a corner of the metal film 622 and extends from the peeled portion 622a to the outside of the metal film 622. Groove portion 623a penetrates metal film 622. The second remaining portion 622c has a shape that surrounds the peeling portion 622a, but is separated at the groove portion 623a. As a result, the second remaining portion 622c has first and second ends 622ca and 622cb facing each other with the groove portion 623a in between. The second remaining portion 622c forms an antenna pattern when the peeling portion 622a is peeled off from the lid 620. In particular, in this embodiment, the second remaining portion 622c forms a loop antenna pattern when the peeling portion 622a is peeled off from the lid 620.

The RFID module 630 is coupled to the metal film 622 in the lid 620 so as to straddle the groove 623a of the slit 623. More specifically, the RFID module 630 is attached to the lid 620 such that the first and second electrodes 631 and 632 are respectively coupled to the first end 622ca and second end 622cb of the second residual portion 622c of the metal film 622. be. The first and second electrodes 631 and 632 are capacitively coupled to the first end 622ca and second end 622cb of the second residual portion 622c, respectively.

In the lid 620 of FIG. 31, no antenna pattern is formed on the metal film 622, and the RFID module 630 cannot perform communication using the metal film 622. Therefore, the RFID function is disabled.

As shown in FIG. 32, in the metal film 622, the peeled portion 622a remains on the body 610 when the lid 620 is peeled from the body 610, and is removed from the lid 620. On the other hand, the first and second remaining portions 622b and 622c remain on the lid 620 even if the lid 620 is peeled off from the main body 610. As shown in FIG. 32, the metal film 622 is selectively removed when the lid 620 is peeled off from the main body 610. For example, by making the strength of the adhesive between the lid 620 and the main body 610 different between the peeling part 622a of the metal film 622 and the first and second remaining parts 622b and 622c, the peeling part 622a can be peeled off from the lid 620. The first and second remaining portions 622b and 622c can be left on the lid 620 while the lid 620 is being removed. Specifically, the strength of the adhesive may be made stronger in the peeled part 622a of the metal film 622 than in the first and second remaining parts 622b and 622c. Additionally, perforations may be formed at the boundaries between the peeled portion 622a and the first and second remaining portions 622b and 622c, if necessary.

FIG. 33 is a bottom view of the lid 620 peeled off from the main body 610 of the container 600 with an RFID function. By peeling off the lid 620 from the main body 610, the peeled portion 622a is removed from the metal film 622. Therefore, a penetration part 623b that penetrates the metal film 622 and exposes the base material 621 is formed at the site of the peeled part 622a. The penetrating portion 623b has a shape corresponding to the peeling portion 622a. The penetrating portion 623b is connected to the groove portion 623a. Thereby, the penetrating portion 623b and the groove portion 623a constitute the slit 623. The slit 623 divides the metal film 622 into a first remaining portion 622b and a second remaining portion 622c. In the metal film 622, the first remaining portion 622b and the second remaining portion 622c are electrically isolated from each other by the through portion 623b. The second remaining portion 622c is separated at the groove portion 623a as described above. Accordingly, the second remaining portion 622c can be used as a loop antenna pattern for the RFID module 630. Hereinafter, the second remaining portion 622c may be referred to as a loop antenna pattern 622c.

As described above, the RFID module 630 is coupled to the metal film 622 in the lid 620 so as to straddle the groove 623a of the slit 623. By peeling off the lid 620 from the main body 610, the loop antenna pattern 622c of the metal film 622 functions as a loop antenna for the RFID module 630. This allows the RFID module 630 to perform communication using the metal film 622. Therefore, the RFID function is enabled.

[1.6.2 Effects, etc.]
As described above, the container 600 with an RFID function includes the main body 610, the lid 620, and the RFID module 630. Main body 610 has electrical insulation properties. The main body 610 has a housing space 611 for the contents N100. The lid 620 includes a metal film 622 and is attached to the main body 610 so as to cover the opening of the accommodation space 611. The RFID module 630 is attached to the lid 620 so as to be outside the opening of the housing space 611. The metal film 622 has a peeled part 622a that is peeled off from the lid 620 and remains on the main body 610 when the lid 620 is peeled off from the main body 610, and a peeled part 622a that is not peeled off from the lid 620 and remains on the lid 620 when the lid 620 is peeled off from the main body 610. It has a remaining residual portion 622c. The shape of the remaining portion 622c is defined by the peeled portion 622a. The remaining portion 622c is an antenna pattern having an antenna shape. The RFID module 630 has first and second electrodes 631 and 632, and is disposed on the lid 620 such that the first and second electrodes 631 and 632 are coupled to the remaining portion 622c of the metal film 622. This configuration can disable communication by the RFID module 630 when the lid 620 is attached to the main body 610, and enable communication by the RFID module 630 when the lid 620 is peeled off from the main body 610.

In the container 600 with an RFID function, the lid 620 includes a groove 623a that penetrates the metal film 622. When the peeling portion 622a peels off the lid 620 from the main body 610, it leaves a through portion 623b in the metal film 622 that connects to the groove portion 623a. The penetrating portion 623b and the groove portion 623a form a slit 623 that defines the antenna shape of the remaining portion 622c.

The container 600 with an RFID function described above is configured such that the RFID function is disabled before the content N100 is used, and the RFID function is enabled after the content N100 is used. When a product using the RFID function container 600 is displayed at a store, information cannot be read out using the RFID function. On the other hand, after the consumer purchases a product using the container 600 with the RFID function and uses the contents N100, the information can be read out using the RFID function. That is, when collecting the container 600 with the RFID function, the RFID function can be used. Therefore, for example, in a sales promotion campaign for a product using the container 600 with an RFID function, it is possible to correctly identify whether the product has been consumed or not, thereby preventing fraud in the campaign. In particular, since the RFID function is disabled before the content N100 is used, it is expected that the RFID function will prevent information leakage.

[1.6.3 Modification]
Embodiment 6 is not limited to the above configuration. The sixth embodiment can be modified in various ways depending on the design, etc., as long as the object can be achieved. Modifications of the sixth embodiment are listed below. The modified examples described below can be applied in combination as appropriate.

[1.6.3.1 Modification 1]
FIG. 34 is a bottom view of a configuration example of a lid 620A of a container with an RFID function according to Modification 1 of Embodiment 6. The lid 620A includes a metal film 622A.

The metal film 622A has a peeled portion 622d and a remaining portion 622e. The peeling portion 622d is a portion of the metal film 622A that is peeled off from the lid 620A and remains on the main body 610 when the lid 620A is peeled off from the main body 610. The peeling portion 622d is arranged in the metal film 622A so as to avoid a predetermined region R600 that covers the opening of the accommodation space 611 of the main body 610. The peeling portion 622d is L-shaped. The peeled portions 622d extend linearly from the corner of the metal film 622A along two sides forming the corner. The remaining portion 622e is a portion of the metal film 622A that remains without being peeled off from the lid 620A when the lid 620A is peeled off from the main body 610. The remaining portion 622e includes a predetermined region R600 that covers the opening of the accommodation space 611 of the main body 610 in the metal film 622A. A groove portion 623a forming a slit 623A is formed in the remaining portion 622e. The groove portion 623a is located at a corner of the metal film 622A and extends outward from the peeled portion 622d of the metal film 622A. A predetermined portion 622f around the peeling portion 622d in the remaining portion 622e is separated at the groove portion 623a. As a result, the predetermined portion 622f of the remaining portion 622e has first and second ends 622fa and 622fb facing each other with the groove portion 623a in between. The predetermined portion 622f of the remaining portion 622e forms an antenna pattern when the peeling portion 622d is peeled off from the lid 620A. In particular, the predetermined portion 622f of the remaining portion 622e forms a loop antenna pattern when the peeling portion 622d is peeled off from the lid 620A.

The RFID module 630 is coupled to the metal film 622A in the lid 620A so as to straddle the groove 623a of the slit 623A. More specifically, in the RFID module 630, the first and second electrodes 631 and 632 are coupled (capacitively coupled) to the first end 622fa and second end 622fb of the predetermined portion 622f of the remaining portion 622e of the metal film 622A, respectively. As shown in the lid 620A.

In the lid 620A of FIG. 34, no antenna pattern is formed on the metal film 622A, and the RFID module 630 cannot perform communication using the metal film 622A. Therefore, the RFID function is disabled.

FIG. 35 is a bottom view of the lid 620A peeled off from the main body 610 in the container with an RFID function. By peeling off the lid 620A from the main body 610, the peeled portion 622d is removed from the metal film 622A. Therefore, a penetration part 623c that penetrates the metal film 622A and exposes the base material 621 is formed in the trace of the peeled part 622d. The penetrating portion 623c has a shape corresponding to the peeling portion 622d. The penetrating portion 623c is connected to the groove portion 623a. Thereby, the penetrating portion 623c and the groove portion 623a constitute a slit 623A. Due to the slit 623A, the predetermined portion 622f of the remaining portion 622e functions as a loop antenna. Below, the predetermined portion 622f may be referred to as a loop antenna pattern 622f.

By peeling off the lid 620A from the main body 610, the loop antenna pattern 622f of the metal film 622A functions as a loop antenna for the RFID module 630. This allows the RFID module 630 to perform communication using the metal film 622A. Therefore, the RFID function is enabled.

[1.6.3.2 Modification 2]
FIG. 36 is a bottom view of a configuration example of a lid 620B of a container with an RFID function according to a second modification of the sixth embodiment. Lid 620B includes a metal film 622B.

The metal film 622B has a peeled portion 622g and a remaining portion 622h. The peeling portion 622g is a portion of the metal film 622B that is peeled off from the lid 620B and remains on the main body 610 when the lid 620B is peeled off from the main body 610. The peeling portion 622g is arranged in the metal film 622B so as to avoid a predetermined region R600 that covers the opening of the housing space 611 of the main body 610. The peeling portion 622g is linear. The peeled portion 622g extends from the corner of the metal film 622B along one of the two sides forming the corner. In FIG. 36, the peeling portion 622g extends in the left-right direction. The remaining portion 622h is a portion of the metal film 622B that remains without being peeled off from the lid 620B when the lid 620B is peeled off from the main body 610. The remaining portion 622h includes a predetermined region R600 that covers the opening of the accommodation space 611 of the main body 610 in the metal film 622B. A groove portion 623a forming a slit 623B is formed in the remaining portion 622h. The groove portion 623a is located at a corner of the metal film 622B and extends outward from the metal film 622B from one end of the peeled portion 622g. A predetermined portion 622i around the peeled portion 622g in the remaining portion 622h is separated by a groove portion 623a. As a result, the predetermined portion 622i of the remaining portion 622h has first and second ends 622ia and 622ib that face each other with the groove portion 623a in between. The predetermined portion 622i of the remaining portion 622h forms a loop antenna pattern when the peeling portion 622g is peeled off from the lid 620B.

The RFID module 630 is coupled to the metal film 622B in the lid 620B so as to straddle the groove 623a of the slit 623B. More specifically, in the RFID module 630, the first and second electrodes 631 and 632 are coupled (capacitively coupled) to the first end 622ia and the second end 622ib of the predetermined portion 622i of the remaining portion 622h of the metal film 622B, respectively. As shown in the lid 620B.

In the lid 620B of FIG. 36, no antenna pattern is formed on the metal film 622B, and the RFID module 630 cannot perform communication using the metal film 622B. Therefore, the RFID function is disabled.

FIG. 37 is a bottom view of the lid 620B peeled off from the main body 610 in the container with an RFID function. By peeling off the lid 620b from the main body 610, the peeled portion 622g is removed from the metal film 622B. Therefore, a penetration part 623e that penetrates the metal film 622B and exposes the base material 621 is formed at the site of the peeled part 622g. The penetrating portion 623e has a shape corresponding to the peeling portion 622g. The penetrating portion 623e is connected to the groove portion 623a. Thereby, the penetrating portion 623e and the groove portion 623a constitute a slit 623B. The slit 623B allows the predetermined portion 622i of the remaining portion 622h to function as a loop antenna. Hereinafter, the predetermined portion 622i may be referred to as a loop antenna pattern 622i.

By peeling off the lid 620B from the main body 610, the loop antenna pattern 622i of the metal film 622B functions as a loop antenna for the RFID module 630. This allows the RFID module 630 to perform communication using the metal film 622B. Therefore, the RFID function is enabled.

[1.6.3.3 Other variations]
In one variation, a predetermined portion of the remaining portion of the metal film may constitute a dipole antenna pattern instead of a loop antenna pattern by peeling the peeling portion from the lid. In other words, as the antenna pattern formed on the metal film, various antenna patterns such as those described in Embodiment Mode 1 and Embodiment Mode 2 can be applied.

[1.7 Embodiment 7]
[1.7.1 Configuration]
FIG. 38 is a perspective view of a configuration example of a container 700 with an RFID function according to the seventh embodiment. The container 700 with an RFID function in FIG. 38 includes a main body 710, a lid 720, and an RFID module 730.

FIG. 39 is a bottom view of a configuration example of the lid 720. FIG. 40 is a perspective view showing a state in which the lid 720 of the container 700 with an RFID function is peeled off from the main body 710.

As shown in FIG. 40, the main body 710 has a storage space 711 for the contents N100. Main body 710 has electrical insulation properties. Main body 710 is formed from a dielectric material such as paper, resin material, or glass, for example. The resin material includes, for example, styrofoam. The main body 710 has a bottomed cylindrical portion 712 and a flange portion 713. The cylindrical portion 712 defines a housing space 711 . The cylindrical portion 712 has a cylindrical shape. The flange portion 713 protrudes outward from the opening edge of the housing space 711. The outer shape of the flange portion 713 is square.

As shown in FIG. 38, the lid 720 is attached to the main body 710 so as to cover the opening of the accommodation space 711. The lid 720 in FIG. 38 is removably attached to the main body 7210. The lid 720 is peeled off from the main body 710 when the contents N100 are taken out from the accommodation space 711 of the main body 710. The lid 720 is entirely flexible. Lid 720 includes a base material 721 and a metal film 722. The base material 721 covers the opening of the accommodation space 711. In particular, the base material 721 completely covers the opening of the housing space 711 and the flange portion 713. The outer shape of the base material 721 is square. The base material 721 is formed from a dielectric material such as paper or plastic, for example. The metal film 722 covers the opening of the accommodation space 711 of the main body 710. The metal film 722 completely covers the opening of the housing space 711 and the flange portion 713. The metal film 722 is on the surface of the base material 721 on the main body 710 side. The metal film 722 may have the effect of preventing changes in the contents due to external factors. In this way, the metal film 722 protects the contents N100 by covering the opening of the accommodation space 711. Examples of the material for the metal film 722 include aluminum and an alloy containing aluminum. The lid 720 is attached to the periphery of the opening of the accommodation space 711 of the main body 710 with adhesive. In FIG. 39, lid 720 is attached to flange portion 713 of body 710 with adhesive. The adhesive is applied to an area of the lid 720 that faces the flange portion 713.

As shown in FIG. 39, a slit 723 is formed in the metal film 722. The slit 723 is arranged in the metal film 722 so as to avoid a predetermined region R700 that covers the opening of the accommodation space 711 of the main body 710. The slit 723 includes a groove portion 723a and a frame portion 723b. The frame portion 723b has an annular shape surrounding the predetermined region R700. The outer shape of the frame portion 723b is concentric with the predetermined region R700. The groove portion 723a extends outward from the lid 720 from the frame portion 723b.

The slit 723 divides the metal film 722 into a central portion 722a that covers the opening of the accommodation space 711 and a peripheral portion 722b that surrounds the central portion 722a. The central portion 722a includes a predetermined region R700 in the metal film 722 that covers the opening of the accommodation space 711. The peripheral portion 722b has a shape that surrounds the central portion 722a, but is separated by a groove portion 723a. Accordingly, the peripheral portion 722b has first and second ends 722ba and 722bb that face each other with the groove portion 723a in between, and a connecting portion 722bc that connects the first and second ends 722ba and 722bb. The peripheral portion 722b is an antenna pattern having an antenna shape. In this embodiment, the peripheral portion 722b can be used as a loop antenna pattern for the RFID module 730. Below, the peripheral portion 722b may be referred to as the antenna pattern 722b.

The RFID module 730 is coupled to the metal film 722 in the lid 720 so as to straddle the groove 723a of the slit 723. More specifically, the RFID module 730 is located on the lid 720 such that the first and second electrodes 731 and 732 are coupled (capacitively coupled) to the first end 722ba and second end 722bb of the antenna pattern 722b, respectively.

In the lid 720 of FIG. 39, since the antenna pattern 722b is formed on the metal film 722, the RFID module 730 can perform communication using the metal film 722. Therefore, the RFID function is enabled.

As shown in FIG. 39, the metal film 722 has peeled parts (first and second peeled parts) 722c and 722d. The first and second peeling portions 722c and 722d are portions of the metal film 722 that are peeled off from the lid 720 and remain on the main body 710 when the lid 720 is peeled off from the main body 710. The portions of the metal film 722 other than the first and second peeled portions 722c and 722d remain on the lid 720. The first and second peeled parts 722c and 722d are part of the antenna pattern 722b of the metal film 722. The first and second peeling parts 722c and 722d are formed so that when peeled off, the antenna pattern 722b is damaged and no longer functions as an antenna for the RFID module 730. The first peeling portion 722c extends outward from the metal film 722 from the groove 723a of the slit 723 in a direction intersecting the groove 723a. By peeling off the first peeling portion 722c, the first end 722ba of the antenna pattern 722b and the connecting portion 722bc are electrically separated. The second peeled portion 722d extends from the groove 723a of the slit 723 to the outside of the metal film 722, intersecting with the groove 723a and in the opposite direction to the first peeled portion 722c. By peeling off the second peeling portion 722d, the second end 722bb of the antenna pattern 722b and the connecting portion 722bc are electrically separated.

As shown in FIG. 40, in the metal film 722, the first and second peeled parts 722c and 722d remain on the body 710 when the lid 720 is peeled from the body 710, and are removed from the lid 720. The portions of the metal film 722 other than the first and second peeled portions 722c and 722d remain on the lid 720 even if the lid 720 is peeled off from the main body 710.

FIG. 41 is a bottom view of the lid 720 peeled off from the main body 710 of the container 700 with an RFID function. As shown in FIG. 41, the metal film 722 is selectively removed when the lid 720 is peeled off from the main body 710. For example, the adhesive strength between the lid 720 and the main body 710 is By making the values different, only the first and second peeling parts 722c and 722d can be peeled off from the lid 720 and left on the main body 710. Specifically, the strength of the adhesive at the first and second peeled parts 722c and 722d of the metal film 722 is determined by the strength of the adhesive at parts of the metal film 722 other than the first and second peeled parts 722c and 722d. Just make it stronger. Further, if necessary, perforations may be formed at the boundaries between the first peeling portions 722c, 722d and other parts.

By peeling off the lid 720 from the main body 710, the first and second peeled parts 722c and 722d are removed from the metal film 722. Therefore, first and second penetration parts 723c and 723d that penetrate the metal film 722 and expose the base material 721 are formed at the remains of the first and second peeling parts 722c and 722d. The first and second penetration parts 723c and 723d have shapes corresponding to the first and second peeling parts 722c and 722d, respectively. The first and second penetrating portions 723c and 723d are connected to the groove portion 723a. As a result, the first and second penetrating portions 723c and 723d, the groove portion 723a, and the frame portion 723b constitute the slit 723. The slit 723 damages the loop antenna pattern 722b of the metal film 722, so that it no longer functions as a loop antenna for the RFID module 730. This makes it impossible for the RFID module 730 to perform communication using the metal film 722. Therefore, the RFID function is disabled.

[1.7.2 Effects, etc.]
As described above, the container with RFID function 700 includes the main body 710, the lid 720, and the RFID module 730. Main body 710 has electrical insulation properties. The main body 710 has a housing space 711 for the contents N100. The lid 720 includes a metal film 722 and is attached to the main body 710 so as to cover the opening of the housing space 711 . The RFID module 730 is attached to the lid 720 so as to be outside the opening of the housing space 711. The metal film 722 includes an antenna pattern 722b having an antenna shape. The RFID module 730 has first and second electrodes 731 and 732, and is disposed on the lid 720 such that the first and second electrodes 731 and 732 are coupled to the antenna pattern 722b. The metal film 722 includes, in a part of the antenna pattern 722b, peeling parts 722c and 722d that are peeled off from the lid 720 and damage the antenna pattern 722b when the lid 720 is peeled off from the main body 710. This configuration enables communication by the RFID module 730 when the lid 720 is attached to the main body 710, and disables communication by the RFID module 730 when the lid 720 is peeled off from the main body 710.

In the container 700 with an RFID function, the peeling parts 722c and 722d are formed so as to electrically separate the antenna pattern 722b from the RFID module 730 when the lid 720 is peeled off from the main body 710.

In the RFID-functional container 700, the antenna pattern 722b has first and second ends 722ba and 722bb coupled to the first and second electrodes 731 and 732 of the RFID module 730. When the peeling parts 722c and 722d are peeled off from the lid 720 when the lid 720 is peeled off from the main body 710, they electrically isolate the first end 722ba and the second end 722bb of the antenna pattern 722b from the rest of the antenna pattern 722b. It is formed to

In the container with RFID function 700, the antenna pattern 722b is a loop antenna pattern having a connecting portion 722bc connecting the first end 722ba and the second end 722bb. The peeling parts 722c and 722d are formed between the first end 722ba and the second end 722bb of the antenna pattern 722b and the connecting part 722bc, respectively.

The container 700 with an RFID function described above is configured such that the RFID function is enabled before the content N100 is used, and the RFID function is disabled after the content N100 is used. For example, a product using the RFID function container 700 is subject to identification and management through wireless communication until it is sold. On the other hand, after the consumer purchases a product using the container 700 with the RFID function and uses the contents N100, the information cannot be read out using the RFID function. That is, after the container 700 with RFID function is sold, the RFID function becomes available. Therefore, for example, it is possible to identify and manage the product using the RFID function container 700 until the product is sold, but after the sale, it can be expected that information leakage can be prevented by the RFID function.

[1.7.3 Variations]
Embodiment 7 is not limited to the above configuration. The seventh embodiment can be modified in various ways depending on the design, etc., as long as the object can be achieved. FIG. 42 is a bottom view of a configuration example of a lid 720A of a container with an RFID function according to a modified example of the seventh embodiment. The lid 720A includes a metal film 722A in which a slit 723A is formed.

The slit 723A is arranged in the metal film 722A so as to avoid a predetermined region R700 that covers the opening of the accommodation space 711 of the main body 710. The slit 723A includes a groove portion 723a and a frame portion 723b. The slit 723A divides the metal film 722A into a central portion 722a that covers the opening of the accommodation space 711 and a peripheral portion 722b that surrounds the central portion 722a. The peripheral portion 722b has first and second ends 722ba and 722bb that face each other across the groove portion 723a, and a connecting portion 722bc that connects the first and second ends 722ba and 722bb. Periphery 722b can be used as a loop antenna pattern for RFID module 730. In the lid 72A0 of FIG. 42, since the antenna pattern is formed on the metal film 722A, the RFID module 730 can perform communication using the metal film 722A. Therefore, the RFID function is enabled.

The metal film 722A has first and second peeled parts 722e and 722f. The first and second peeling parts 722e and 722f are parts of the metal film 722A that are peeled off from the lid 720A and remain on the main body 710 when the lid 720A is peeled off from the main body 710. The portions of the metal film 722A other than the first and second peeled portions 722e and 722f remain on the lid 720A. The first and second peeled parts 722e and 722f are part of the antenna pattern 722b of the metal film 722A. The first and second peeling parts 722c and 722d are formed so that when peeled off, the antenna pattern 722b is damaged and cannot function as a loop antenna for the RFID module 730. The first peeling portion 722e extends outward from the metal film 722A from the frame portion 723b of the slit 723A so that the first electrode 731 of the RFID module 730 is located between the groove portion 723a and the first peeling portion 722e. By peeling off the first peeling portion 722e, the first end 722ba of the antenna pattern 722b and the connecting portion 722bc are electrically separated. The second peeling portion 722f extends outward from the metal film 722A from the frame portion 723b of the slit 723A so that the second electrode 732 of the RFID module 730 is located between the groove portion 723a and the second peeling portion 722f. By peeling off the second peeling portion 722f, the second end 722bb of the antenna pattern 722b and the connecting portion 722bc are electrically separated.

In the metal film 722A, the first and second peeling parts 722e and 722f remain on the main body 710 when the lid 720A is peeled off from the main body 710, and are removed from the lid 720A. The portions of the metal film 722A other than the first and second peeled portions 722e and 722f remain on the lid 720A even when the lid 720A is peeled off from the main body 710.

FIG. 43 is a bottom view of the lid 720A peeled off from the main body 710. By peeling off the lid 720A from the main body 710, the first and second peeled parts 722e and 722f are removed from the metal film 722A. Therefore, first and second penetration parts 723e and 723f that penetrate the metal film 722A and expose the base material 721 are formed at the remains of the first and second peeling parts 722e and 722f. The first and second penetration parts 723e and 723f have shapes corresponding to the first and second peeling parts 722e and 722f, respectively. The first and second penetrating portions 723e and 723f are connected to the frame portion 723b. As a result, the first and second penetrating portions 723e and 723f, the groove portion 723a, and the frame portion 723b constitute a slit 723A. The slit 723A damages the loop antenna pattern 722b of the metal film 722A, so that it no longer functions as a loop antenna for the RFID module 730. This makes it impossible for the RFID module 730 to perform communication using the metal film 722A. Therefore, the RFID function is disabled.

In another variation, the metal film may constitute a dipole antenna pattern rather than a loop antenna pattern. In this case, the metal film may be configured such that the dipole antenna pattern is damaged when the peeled portion of the metal film is peeled off from the lid. In other words, as the antenna pattern formed on the metal film, various antenna patterns such as those described in Embodiment Mode 1 and Embodiment Mode 2 can be applied.

[2. Modified example]
Embodiments of the present disclosure are not limited to the above embodiments. The embodiments described above can be modified in various ways depending on the design, etc., as long as the objects of the present disclosure can be achieved. Modifications of the above embodiment are listed below. The modified examples described below can be applied in combination as appropriate.

Regarding Embodiment 1, the material and dimensions of the RFID-functional container 100, for example, the material and shape of the main body 110 and the lid 120, may be changed as appropriate. The material and shape of the main body 110 and the lid 120 may be determined as appropriate depending on, for example, the properties of the contents N100. This point also applies to Embodiments 2 to 7.

Although the lid 120 is removably attached to the main body 110 in the first embodiment, it does not necessarily have to be removably attached to the main body 110. For example, the lid 120 may be removably attached to the main body 110 by a mechanical structure. An example of a mechanical structure is a structure using a male screw and a female screw. For example, the lid 120 does not necessarily have to be removable from the main body 110; the lid 120 itself may be damaged so that a hole is drilled in the lid 120 to remove the contents N100 from the main body 110. As long as the lid 120 can be attached to the main body 110, the attachment method is not particularly limited. This point also applies to Embodiments 2 to 7.

Regarding the first embodiment, the configuration of the RFID module 130 may be changed as appropriate. For example, the RFID module 130 may be configured to include the RFIC element 134 but not include the parallel resonant circuit (filter circuit) RC1. This point also applies to Embodiments 2 to 7.

In the first embodiment, the communication frequency band is the UHF band, but it is not limited to this. The RFID module 130 may be configured to wirelessly communicate using a high frequency signal having a communication frequency (carrier frequency) in the HF band. The HF band is a frequency band from 13 MHz to 15 MHz. This point also applies to Embodiments 2 to 7.

[3. Mode]
As is clear from the above embodiments and modifications, the present disclosure includes the following aspects. In the following, the reference numerals in the embodiment are given in parentheses to the constituent elements only to clearly indicate the correspondence with the embodiment. In addition, in consideration of the readability of the text, the description of the numerals from the second time onward may be omitted.

The first aspect is a container with an RFID function (100; 200; 300; 400; 500; 600; ; 711); an electrically insulating body (110; 210; 310; 410; 510; 610; 710) having a metal film (122, 122A to 122E; 222, 222A; a lid (120, 120A to 120E; 220, 220A; 320, 320A to 320D; 420; 520; 620; 620A, 620B; 720, 720A), and first and second electrodes (131, 132; 231, 232) attached to the main body or the lid and coupled to the metal film so as to be outside the opening of the accommodation space. ; 331, 332; 431, 432; 531, 532; 631, 632; 731, 732); This aspect can reduce the possibility that the RFID module will mix into the content N100 while suppressing deterioration of the design in a container in which a lid having a metal film is attached to the main body for accommodating the content.

The second aspect is a container (100; 300; 600; 70) with an RFID function based on the first aspect. In the second aspect, the metal film (122-122E; 322-322D; 620, 620A, 620B; 720, 720A) includes an antenna pattern. The RFID module (130; 330; 630; 730) is configured such that the first and second electrodes (131, 132; 331, 332; 631, 632; 731, 732) are coupled to the antenna pattern. It's on the lid. In this aspect, since the metal film has an antenna pattern, the efficiency of wireless communication in the RFID module can be improved.

The third aspect is a container (100; 300) with an RFID function based on the second aspect. In a third aspect, the antenna patterns include first antenna patterns (122a, 122f, 122k; 322a, 322e, 322j) and second antenna patterns (122b, 122g, 122l; 322b, 322f, 322k). The RFID module (130; 330) has the lid (120, 120A) such that the first and second electrodes (131, 132; 331, 332) are coupled to the first and second antenna patterns, respectively. , 120E; 320, 320A, 320D). This embodiment can form a dipole antenna.

A fourth aspect is a container with an RFID function based on the third aspect. In a fourth aspect, the shapes of the first and second antenna patterns are defined by slits (123, 123A, 123E; 323, 323A, 323D) formed in the metal film. The slit is arranged in the metal film so as to avoid a predetermined region (R100; R300) that covers the opening of the accommodation space. In this aspect, the first and second antenna patterns can be provided without affecting the protection function of the contents by the metal film.

A fifth aspect is a container (100; 300) with an RFID function based on the fourth aspect. In a fifth aspect, the slit (123, 123A; 323, 323A) is formed to surround the opening of the accommodation space, and extends from the predetermined area to the first antenna pattern (122a, 122f; 322a, 322e). a first portion (123a; 323b) that electrically isolates the second antenna pattern (122b, 122g; 322b, 322f); and a first portion (123a; 323b) that is formed at the edge of the opening of the accommodation space to form the first and second antenna patterns. and second portions (123b-1 to 123b-4; 323a, 323c, 323e, 323f) that electrically isolate the two portions. This aspect can reduce the possibility that the first and second antenna patterns will be affected by the contents.

A sixth aspect is a container (100; 300) with an RFID function based on the third aspect. In a sixth aspect, the slit (123E; 323D) is formed along a predetermined direction at a portion of the metal film (122E; 322D) corresponding to an edge of the opening of the accommodation space (111; 311). The first and second antenna patterns (122k, 122l; 322j, 322k) are electrically isolated. This embodiment allows the formation of slits in multiple lids to be performed at once.

A seventh aspect is a container with an RFID function (100; 300; 600; 700) based on the second aspect. In a seventh aspect, the antenna pattern includes a loop antenna pattern (122h, 122i, 122j; 322h, 322i; 622c, 622f, 622i; 722b). In the RFID module (130; 330; 630; 730), the first and second electrodes (131, 132; 331, 332; 631, 632; 731, 732) are located at the first end (122 ha, 122IA, 122JA; 322 ha, 322IA; 622CA, 622FA, 622IA; 722BA), second end (122 HB, 122IB, 122 JB; 322HB, 322IB; 622CB, 622FB, 622IB; 722BB; 722BB; 722BB; 722BB; ) To the lid so that it is combined with each be. This embodiment can form a loop antenna.

An eighth aspect is a container with an RFID function based on the seventh aspect. In the eighth aspect, the shape of the loop antenna pattern is defined by slits (123B to 123D; 323B, 323C; 623, 623A, 623B; 723, 723A) formed in the metal film. The slit is arranged in the metal film so as to avoid a predetermined region (R100; R300; R600; R700) that covers the opening of the accommodation space. In this embodiment, a loop antenna pattern can be provided without affecting the protection function of the contents by the metal film.

A ninth aspect is a container (400; 500) with an RFID function based on the first aspect. In a ninth aspect, the main body (510) or the lid (420) has first and second electrode patterns (541, 542; 441; 442) coupled to the metal film (522; 422). First and second electrodes (531, 532; 431, 432) of the RFID module (530; 430) are coupled to the first and second electrode patterns (541, 542; 441; 442), respectively. In this embodiment, there is no need to perform processing such as providing slits in the metal film, so that the degree of freedom in designing the metal film can be improved.

A tenth aspect is a container (400) with an RFID function based on the ninth aspect. In a tenth aspect, the lid (420) includes an insulating material (423) facing the metal film (422), and the first and second electrode patterns (441, 442). The first and second electrode patterns (441, 442) are disposed on the insulating material (423). The first and second electrode patterns (441, 442) face the metal film (422). The RFID module (430) is on the insulating material (423) such that the first and second electrodes (431, 432) are coupled to the first and second electrode patterns, respectively. In this embodiment, there is no need to perform processing such as providing slits in the metal film, so that the degree of freedom in designing the metal film can be improved.

An eleventh aspect is a container (400) with an RFID function based on the tenth aspect. In the eleventh aspect, the first electrode pattern (441) includes a first electrode part (441a) that faces the metal film (422) and is larger than the first electrode (431) of the RFID module (430); It includes a first wiring part (441b) that connects the first electrode part (441a) and the first electrode (431) of the RFID module (430). The second electrode pattern (442) includes a second electrode part (442a) that faces the metal film (422) and is larger than the second electrode (432) of the RFID module (430), and the second electrode part (442a). ) and a second wiring part (442b) connecting the second electrode (432) of the RFID module (430). This aspect can strengthen the bond between the RFID module and the metal film.

A twelfth aspect is a container (100; 200; 400; 600; 700) with an RFID function based on any one of the first to eleventh aspects. In a twelfth aspect, the main body (110; 210; 410; 610; 710) has a flange portion (113; 213; 413; 613; 713). The RFID module (130; 230; 430; 630; 730) is located at a portion of the lid (120, 120A to 120E; 220, 220A; 420; 620, 620A, 620B; 720, 720A) facing the flange portion. be. This aspect can reduce the possibility of impairing the function of the RFID module when containers with RFID function are stacked on top of each other.

A thirteenth aspect is a container (300) with an RFID function based on any one of the first to eleventh aspects. In a thirteenth aspect, the lid (320) has a handle portion (320b) that projects outward from the opening edge of the accommodation space (311). The RFID module (330) is located in the handle part (320b). This aspect can reduce the possibility of impairing the function of the RFID module when containers with RFID function are stacked on top of each other.

A fourteenth aspect is a container (100) with an RFID function based on any one of the first to thirteenth aspects. In a fourteenth aspect, the lid (120) has a protective film (124) covering the metal film (122). The RFID module (130) is between the protective film (124) and the metal film (122). This aspect can reduce the possibility that the RFID module will fall off the lid.

A fifteenth aspect is a container (100; 200; 300; 400; 600; 700) with an RFID function based on any one of the first to fourteenth aspects. In a fifteenth aspect, the RFID module (130; 230; 430; 630; 730) is arranged in the main body of the lid (120, 120A to 120E; 220, 220A; 420; 620, 620A, 620B; 720, 720A). It is on the (110; 210; 410; 610; 710) side. In this aspect, the design of the container with an RFID function is less likely to be impaired, and the RFID module is less likely to fall off.

A sixteenth aspect is a container (500) with an RFID function based on the first aspect. In a sixteenth aspect, the main body (510) has the first and second electrode patterns (541, 542). The first and second electrode patterns (541, 542) face the metal film (522). The RFID module (530) is in the main body (510) such that the first and second electrodes (531, 532) are coupled to the first and second electrode patterns (541, 542), respectively. In this embodiment, there is no need to perform processing such as providing slits in the metal film, so that the degree of freedom in designing the metal film can be improved.

A seventeenth aspect is a container (500) with an RFID function based on the sixteenth aspect. In a seventeenth aspect, the first electrode pattern (541) includes a first electrode part (541a) facing the metal film (522) and larger than the first electrode (531) of the RFID module (530); It includes a first wiring part (541b) that connects the first electrode part (541a) and the first electrode (531) of the RFID module (530). The second electrode pattern (542) includes a second electrode portion (542a) that faces the metal film (522) and is larger than the second electrode (532) of the RFID module (530); ) and a second wiring part (542b) connecting the second electrode (532) of the RFID module (530). This aspect can strengthen the bond between the RFID module and the metal film.

An 18th aspect is a container (500) with an RFID function based on the 16th or 17th aspect. In an eighteenth aspect, the main body has a flange portion (513) projecting outward from an opening edge of the accommodation space. The metal film covers the flange portion. The RFID module and the first and second electrode patterns are located on the flange. This aspect can reduce the possibility of impairing the function of the RFID module when containers with RFID function are stacked on top of each other.

A nineteenth aspect is a container (200) with an RFID function based on any one of the first to fifteenth aspects. In a nineteenth aspect, the main body (210) has a plurality of accommodation spaces (211) arranged so as to surround a predetermined region. The metal film (222) comprehensively covers the plurality of accommodation spaces (211). An opening (226) is formed in the lid (220) at a position corresponding to the predetermined region. A slit (223) extending from the opening (226) is formed in the metal film (222). The RFID module (230) is located on the lid (220) so as to straddle the slit (223). This aspect reduces the possibility of the RFID module getting mixed into the contents while suppressing the deterioration of the design in a container in which a lid with a metal film is attached to a main body having a plurality of storage spaces each accommodating the contents. can.

A twentieth aspect is a container (200) with an RFID function based on any one of the first to fifteenth aspects. In the twentieth aspect, the main body (210) includes a pair of small main body parts (215a, 215b) each having the accommodation space (211), and a structure for separating the pair of small main body parts (215a, 215b) from each other. and a first perforation (214a). The lid (220) is for separating the pair of small lid portions (225a, 225b) corresponding to the pair of small body portions (215a, 215b) from each other. and a second perforation (224a). The second perforation (224a) electrically separates portions of the metal film (222) corresponding to the pair of small lid portions (225a, 225b). The RFID module (230) is located on the lid (220A) so as to straddle the second perforation (224a). This aspect reduces the possibility of the RFID module getting mixed into the contents while suppressing the deterioration of the design in a container in which a lid with a metal film is attached to a main body having a plurality of storage spaces each accommodating the contents. can.

A twenty-first aspect is a container (100; 200; 300; 400; 500; 600; 700) with an RFID function based on any one of the first to twentieth aspects. In the 20th aspect, the RFID module (130; 230; 330; 430; 530; 630; 134). The first electrode (131; 231; 331; 431; 531; 631; 731) and the second electrode (132; 232; 332; 432; 532; 632; 732) are connected to the filter circuit (RC1). Ru. In this aspect, the RFIC element and the metal film are matched at the communication frequency, and the communication distance of the RFID module at the communication frequency can be ensured.

The present disclosure relates to containers with RFID functionality. Specifically, the present disclosure is applicable to a container with an RFID function that utilizes RFID (Radio Frequency Identification) technology that performs contactless data communication using an induced electromagnetic field or radio waves.

100 Container with RFID function 110 Main body 111 Accommodation space 113 Flange portion 120, 120A to 120E Lid 122, 122A to 122E Metal film 122a First side portion (first antenna pattern)
122b Second side part (second antenna pattern)
122f First side (first antenna pattern)
122g Second side (second antenna pattern)
122k 1st part (1st antenna pattern)
122l 2nd part (2nd antenna pattern)
122h peripheral area (loop antenna pattern)
122ha First end 122hb Second end 122i, 122j Loop antenna pattern 122ia, 122ja First end 122ib, 122jb Second end 123, 123A to 123E Slit 123a Frame portion (first part)
123b-1 to 123b-4 1st to 4th extension parts (second part)
124 Protective film 130 RFID module 131 First electrode 132 Second electrode 134 RFIC element RC1 Parallel resonant circuit (filter circuit)
R100 Predetermined area N100 Contents 200 Container with RFID function 210 Main body 211 Accommodation space 213 Flange portion 220, 220A Lid 222, 222A Metal film 223 Slit 224b Perforation 226 Opening 230 RFID module 231 First electrode 232 Second electrode 300 With RFID function Container 310 Main body 311 Accommodation space 320, 320A to 320D Lid 322, 322A to 322D Metal film 322a, 322e First side part (first antenna pattern)
322b, 322f Second side (second antenna pattern)
322j 1st part (1st antenna pattern)
322k 2nd part (2nd antenna pattern)
322h peripheral area (loop antenna pattern)
322ha First end 322hb Second end 322i Loop antenna pattern 322ia First end 322ib Second end 323, 323A to 323D Slit 323a First extension (second part)
323b Frame (first part)
323c Second extension part (second part)
323e Second extension part (second part)
323f Third extension part (second part)
330 RFID module 331 First electrode 332 Second electrode R300 Predetermined area 400 Container with RFID function 410 Main body 411 Accommodation space 413 Flange portion 420 Lid 422 Metal film 423 Insulating material 430 RFID module 431 First electrode 432 Second electrode 441 First electrode Pattern 441a First electrode part 441b First wiring part 442 Second electrode pattern 442a Second electrode part 442b Second wiring part 500 Container with RFID function 510 Main body 511 Accommodation space 513 Flange part 520 Lid 522 Metal film 530 RFID module 531 First Electrode 532 Second electrode 541 First electrode pattern 541a First electrode part 541b First wiring part 542 Second electrode pattern 542a Second electrode part 542b Second wiring part 600 Container with RFID function 610 Main body 611 Accommodation space 613 Flange part 620, 620A, 620B Lid 622, 622A, 622B Metal film 622c Second residual part (loop antenna pattern)
622ca First end 622cb Second end 622f Specified portion (loop antenna pattern)
622fa First end 622fb Second end 622i Predetermined portion (loop antenna pattern)
622ia First end 622ib Second end 623,623A,623B Slit 630 RFID module 631 First electrode 632 Second electrode R600 Predetermined area 700 Container with RFID function 710 Main body 711 Accommodation space 713 Flange portion 720,720A Lid 722,722A Metal membrane 722b Peripheral part (antenna pattern)
722ba First end 722bb Second end 723, 723A Slit 730 RFID module 731 First electrode 732 Second electrode R700 Predetermined area

Claims (8)

an electrically insulating body having a storage space for contents;
a lid that includes a metal film and is attached to the main body so as to cover the opening of the accommodation space;
an RFID module having first and second electrodes attached to the main body or the lid so as to be outside the opening of the housing space and coupled to the metal film;
Equipped with
The metal film includes an antenna pattern,
the RFID module is on the lid such that the first and second electrodes are coupled to the antenna pattern;
The antenna pattern includes first and second antenna patterns that are electrically independent of each other,
the RFID module is on the lid such that the first and second electrodes are coupled to the first and second antenna patterns, respectively;
The shapes of the first and second antenna patterns are defined by slits formed in the metal film,
The slit is arranged in the metal film so as to avoid a predetermined area covering the opening of the accommodation space,
The slit is
a first portion formed to surround the opening of the housing space and electrically isolate the first and second antenna patterns from the predetermined area;
a second portion formed at an edge of the opening of the accommodation space to electrically isolate the first and second antenna patterns;
including,
Container with RFID function. an electrically insulating body having a storage space for contents;
a lid that includes a metal film and is attached to the main body so as to cover the opening of the accommodation space;
an RFID module having first and second electrodes attached to the main body or the lid so as to be outside the opening of the housing space and coupled to the metal film;
Equipped with
The main body or the lid has first and second electrode patterns coupled to the metal film,
first and second electrodes of the RFID module are coupled to the first and second electrode patterns, respectively;
The lid is
an insulating material facing the metal film;
the first and second electrode patterns;
has
the first and second electrode patterns are disposed on the insulating material;
the first and second electrode patterns face the metal film,
the RFID module is in the insulating material such that the first and second electrodes are coupled to the first and second electrode patterns, respectively;
The first electrode pattern includes a first electrode part that faces the metal film and is larger than the first electrode of the RFID module, and a first wiring part that connects the first electrode part and the first electrode of the RFID module. including;
The second electrode pattern includes a second electrode part that faces the metal film and is larger than the second electrode of the RFID module, and a second wiring part that connects the second electrode part and the second electrode of the RFID module. including,
Container with RFID function. an electrically insulating body having a storage space for contents;
a lid that includes a metal film and is attached to the main body so as to cover the opening of the accommodation space;
an RFID module having first and second electrodes attached to the main body or the lid so as to be outside the opening of the housing space and coupled to the metal film;
Equipped with
The main body has a plurality of accommodation spaces arranged so as to surround a predetermined region,
The metal film comprehensively covers the plurality of accommodation spaces,
an opening is formed in the lid at a position corresponding to the predetermined region;
A slit extending from the opening is formed in the metal film,
the RFID module is on the lid so as to straddle the slit;
Container with RFID function. The main body has a flange portion protruding outward from an opening edge of the accommodation space,
The RFID module is located at a portion of the lid facing the flange portion,
The container with an RFID function according to any one of claims 1 to 3. The lid has a handle portion that protrudes outward from an opening edge of the storage space,
The RFID module is located in the handle portion.
The container with an RFID function according to any one of claims 1 to 3. The lid has a protective film covering the metal film,
The RFID module is between the protective film and the metal film,
The container with an RFID function according to any one of claims 1 to 3 . the RFID module is on the main body side of the lid;
The container with an RFID function according to any one of claims 1 to 3 . The RFID module includes:
RFIC element,
a filter circuit that transmits a current caused by electromagnetic waves having a unique resonant frequency, which is a communication frequency, to the RFIC element;
Equipped with
the first electrode and the second electrode are connected to the filter circuit,
The container with an RFID function according to any one of claims 1 to 3 .

Images