JP5348709B2 - Non-contact IC card and non-contact IC card skimming prevention method - Google Patents

Description

  The present invention relates to a non-contact IC card and a non-contact IC card skimming prevention method. The present invention can be applied to the entire field of using a non-contact IC card that requires countermeasures against skimming, such as electronic money and personal authentication.

  A contactless IC card is a medium that allows communication even when stored in a wallet or commuter pass storage. However, a contactless IC card is a wallet or commuter pass holder. There is a risk that skimming is possible even if it is stored inside.

  Further, for example, by storing a non-contact IC card in a shielding case or the like in which radio waves are blocked, such as “Slide pass case for non-contact IC card with skimming prevention function” of Japanese Patent Application Laid-Open No. 2008-272212 of Patent Document 1. In the past, there have been methods for preventing skimming. However, these conventional skimming prevention methods require that the non-contact IC card be taken out of the shielding case every time the non-contact IC card is used. In addition, there is no merit that electronic payment or personal authentication can be performed in a state where the ticket is still in the commuter pass box, and convenience when using a non-contact IC card is reduced.

  Japanese Patent Application Laid-Open No. 2010-267150, “Non-contact Information Recording Medium”, discloses a non-contact IC tag only when a communication button is arranged on a non-contact IC tag and the communication button is pressed. A technology for enabling communication by connecting an IC chip mounted on the antenna and an antenna pattern is disclosed. However, since the communication button is arranged at a specific location in the non-contact type IC tag, the user needs to check and operate the location where the communication button exists. Yes, the operability was degraded.

JP 2008-272412 (page 2-3) JP 2010-267150 A (page 5-8)

  As described above, in the conventional technique for preventing skimming of the non-contact IC card, the convenience and operability of the non-contact card are impaired, and there is a problem in putting it into practical use.

(Object of the present invention)
The present invention has been made to solve the above-described problems, and reliably prevents skimming when a non-contact IC card is not used. On the other hand, when a non-contact IC card is used, a wallet or commuter pass is used. It is an object of the present invention to provide a non-contact IC card and a non-contact IC card skimming prevention method that can be used easily without taking them out of a container.

  In order to solve the above-described problems, the non-contact IC card and the non-contact IC card skimming prevention method according to the present invention mainly adopt the following characteristic configuration.

  (1) A non-contact IC card according to the present invention is a non-contact IC card comprising an antenna that transmits and receives radio waves to and from an external device, and an IC chip that performs processing by communicating via the antenna. In normal times when no pressure is applied from the outside, the contact is in an off state, and when pressure is applied from the outside, the contact is further switched to an on state. When no pressure is applied, the contact of the pressure sensitive switch remains in an OFF state, so that the IC chip is maintained in a state where communication with the outside is impossible, and the pressure sensitive switch When pressure is applied from the outside to the IC, the contact of the pressure sensitive switch is turned on, so that the IC chip can communicate with the outside via the antenna. Characterized in that it is set in Noh state.

  (2) A non-contact IC card skimming prevention method according to the present invention includes a non-contact IC card including an external device, an antenna that transmits and receives radio waves, and an IC chip that performs processing by performing communication through the antenna. A non-contact IC card skimming prevention method that prevents skimming against the card, and when the external pressure is not applied, the contact is in an off state, and when the pressure is applied from the outside, the contact is turned on. When no pressure is applied from the outside to the pressure sensitive switch using the switching pressure sensitive switch, the contact of the pressure sensitive switch remains in the off state, so that the IC chip is externally connected. When the pressure is applied from the outside to the pressure sensitive switch, the contact of the pressure sensitive switch is turned on. It is switched on by, wherein the IC chip is set in the communication state capable of the outside through the antenna.

  According to the non-contact IC card and the non-contact IC card skimming prevention method of the present invention, the following effects can be obtained.

  The first effect is that the connection state in the non-contact IC card can be controlled by a pressure-sensitive switch, so that the user can remove the finger from the non-contact IC card after using the non-contact IC card, or If the non-contact IC card is moved away from the read / write surface of the non-contact IC card reader / writer so that no pressure is applied to the pressure-sensitive switch, the contact of the pressure-sensitive switch is automatically set to the off state, and the non-contact IC The card can be restored to a state where communication with the outside is impossible. Thus, the user can reliably prevent skimming of the non-contact IC card without performing a special operation.

  The second effect is that the pressing part of the pressure-sensitive switch that controls the connection state in the non-contact IC card is shaped so as to substantially cover the entire surface of the non-contact IC card. Even when the IC card is still stored in the wallet or commuter pass compartment, pressure can be applied to the pressure-sensitive switch to turn on the contact (conductive state), and the non-contact IC card can be connected to the outside. The point is that the communication can be set. Thus, the user can use the contactless IC card without taking it out of the wallet or commuter pass at the point of use, so that the convenience of the contactless IC card is not impaired, and It is also possible to prevent skimming of the non-contact IC card when not in use.

It is a schematic diagram which shows the structural example of the non-contact IC card by this invention. FIG. 2 is a cross-sectional structure diagram illustrating an example of a cross-sectional structure when viewed from the top surface of the non-contact IC card in FIG. 1. FIG. 3 is an activity diagram for explaining a procedure for changing the communication state of the non-contact IC card shown in FIGS. 1 and 2. It is a schematic diagram for demonstrating the operation | movement at the time of use of the non-contact IC card shown in FIG. 1, FIG.

  Preferred embodiments of a non-contact IC card and a non-contact IC card skimming prevention method according to the present invention will be described below with reference to the accompanying drawings.

(Features of the present invention)
Prior to the description of the embodiments of the present invention, an outline of the features of the present invention will be described first. The present invention includes a mechanism for setting a state in which an IC chip and an antenna in a non-contact IC card can be made conductive only when the non-contact IC card is used, thereby The main feature is enabling skimming prevention.

  That is, according to the present invention, when the non-contact IC card is not used, the IC chip in the non-contact IC card and the antenna are not electrically connected or the circuits in the IC chip are connected. Set the internal wiring to be in a state where a part of the internal wiring is not connected or not, and the non-contact IC card communicates with an external device such as a non-contact IC card reader / writer. The non-contact IC card can be prevented from skimming by setting it in a state in which it cannot be performed. In addition, when using a non-contact IC card, a pressure-sensitive switch is used as a mechanism to connect the IC chip in the non-contact IC card and the antenna, or to connect internal wiring between circuits in the IC chip. Then, by applying pressure to the pressing portion of the pressure sensitive switch from the outside, the contact of the pressure sensitive switch is closed. A pressure-sensitive switch is a switch that has a high resistance value when the pressure is not applied and the contact is open, the resistance value can be lowered by applying pressure, and the contact can be set to a conductive state. That is.

  Therefore, when a non-contact IC card is not used, the wallet or commuter pass compartment is stored without applying pressure to the pressure sensitive switch, and only when the non-contact IC card is used. By pressing the pressure from above while keeping it in the stored state without removing it from the wallet or commuter pass holder, the IC chip in the non-contact IC card and the antenna can be connected to each other by pressing the pressure sensitive switch. Or the internal wiring between circuits in the IC chip can be set in a connected state. Thus, skimming of the non-contact IC card when not in use can be prevented without deteriorating the convenience of the non-contact IC card during use.

(Configuration example of embodiment)
Next, a configuration example of the non-contact IC card according to the present invention will be described with reference to FIG. FIG. 1 is a schematic diagram showing a configuration example of a contactless IC card according to the present invention. FIG. 1A shows a connection between an IC chip in a contactless IC card and an antenna via a pressure sensitive switch. FIG. 1B shows a configuration example in which a specific circuit inside an IC chip in a non-contact IC card is internally connected via a pressure sensitive switch. ing.

  In the non-contact IC card 10A shown in FIG. 1A, an antenna connection line 14 that connects the built-in IC chip 11 and the antenna 12 is connected via a contact of a pressure-sensitive switch 13A. The antenna connection line 14 includes an active line 14a and a return line 14b, and the pressure sensitive switch 13A is inserted into the active line 14a. When the pressure sensitive switch 13A is not pressed, the contact is in an off state (open state), and the IC chip 11 and the antenna 12 are not connected. Communication with the device is blocked.

  On the other hand, when a user who intends to use the non-contact IC card 10A presses the pressure sensitive switch 13A, the contact of the pressure sensitive switch 13A is switched to an on state (closed state), and the IC chip 11 and the antenna 12 are electrically connected. In this state, the IC chip 11 can communicate with the outside via the antenna 12 and can use the non-contact IC card.

  In the non-contact IC card 10B shown in FIG. 1B, the built-in IC chip 11 and the antenna 12 are always connected by the antenna connection line 14, but the circuits in the IC chip 11 are connected. Among the internal wirings, the specific internal wiring 15 that connects specific circuits is drawn to the external terminal of the IC chip 11 and connected via the contact of the pressure-sensitive switch 13B. The pressure-sensitive switch 13B, like the pressure-sensitive switch 13A shown in FIG. 1A, has a contact point in an off state (open state) when not pressed, and connects between specific circuits of the IC chip 11. The specific internal wiring 15 to be connected is set in a non-connected state, and the IC chip 11 is in an inoperative state and cannot communicate with the outside.

  On the other hand, when a user who intends to use the non-contact IC card 10B presses the pressure sensitive switch 13B, the contact of the pressure sensitive switch 13B is switched to an on state (closed state), and the internal wiring 15 of the IC chip 11 is connected. In this state, the IC chip 11 is switched to the operating state, and can communicate with the outside via the antenna 12 and can use the contactless IC card.

  As shown in FIG. 1A, the connection state of the antenna connection line 14 that connects the IC chip 11 and the antenna 12 in the non-contact IC card 10A is switched by the pressure sensitive switch 13A, or As shown in FIG. 1B, the non-contact IC is configured by switching the connection state of the internal wiring 15 that connects the specific circuits inside the IC chip 11 in the non-contact IC card 10B by the pressure sensitive switch 13B. A mechanism for reliably preventing skimming when the non-contact IC card 10A or the non-contact IC card 10B is not used is realized while maintaining convenience when the card 10A or the non-contact IC card 10B is used.

  By adopting pressure sensitive switches 13A and 13B as shown in FIG. 1, the non-contact IC cards 10A and 10B can be used only when pressure is applied to the pressure sensitive switches 13A and 13B. If the pressure is not applied to 13B, the non-contact IC cards 10A and 10B can be automatically restored to an unusable state, so the normal time when the non-contact IC cards 10A and 10B are not used. Thus, there is no occurrence of forgetting to return the switch, and the skimming action for the non-contact IC cards 10A and 10B can be prevented more reliably.

  Next, a mechanism that makes it possible to maintain convenience when using the non-contact IC card 10A or the non-contact IC card 10B will be described with reference to FIG. FIG. 2 is a cross-sectional structure diagram showing an example of a cross-sectional structure when viewed from the top surface of the non-contact IC card in FIG. 1, and the pressure-sensitive switch pressing portion covers almost the entire surface of the non-contact IC card. In order to easily show that the pressure sensor is disposed in a state where the pressure is applied, the shape of the pressing portion of the pressure-sensitive switch is superimposed on the cross-sectional structure.

  2A shows a cross-sectional structure of the non-contact IC card 10A shown in FIG. 1A, and antenna connection for connecting the IC chip 11 and the antenna 12 is shown. The active line 14a in the line 14 is connected via the contact of the pressure sensitive switch 13A. FIG. 2B shows a cross-sectional structure of the non-contact IC card 10B shown in FIG. 1B, and the antenna connection line 14 (the active line 14a and the return line) is provided between the IC chip 11 and the antenna 12. Is always connected, but a part of the internal wiring in the IC chip 11 is pulled out of the IC chip 11 and connected as the internal wiring 15 through the contact of the pressure sensitive switch 13B. Has been.

  In both the non-contact IC card 10A shown in FIG. 2A and the non-contact IC card 10B shown in FIG. 2B, the antenna 12 is disposed along the outer edge of the non-contact IC card 10A, 10B. The IC chip 11 is disposed, for example, in the upper right corner inside the antenna 12. Note that although the antenna 12 is indicated by a bold line, this means that the antenna line is wound a plurality of times so that the required electric field strength can be obtained.

  Further, in both of the non-contact IC card 10A shown in FIG. 2A and the non-contact IC card 10B shown in FIG. 2B, the pressing portions of the pressure sensitive switches 13A and 13B are connected between the antenna 12 and the IC chip 11. The non-contact IC cards 10A and 10B excluding the area are configured to cover almost the entire front or back surface. When the area of the pressing part of the pressure sensitive switches 13A, 13B is small compared to the size of the non-contact IC card 10A, 10B, the user who wants to press the pressure sensitive switches 13A, 13B Unless the placement locations on the cards 10A and 10B are visually recognized, the pressing portions of the pressure sensitive switches 13A and 13B cannot be correctly pressed. As a result, for example, the contactless IC cards 10A and 10B cannot be used in a state where the contactless IC cards 10A and 10B are stored in a wallet or a commuter pass, and convenience is impaired.

  Therefore, in FIGS. 2A and 2B, the pressing portions of the pressure sensitive switches 13A and 13B can be correctly pressed while the non-contact IC cards 10A and 10B are stored in the wallet or the commuter pass. In addition, the pressing portions of the pressure sensitive switches 13A and 13B are configured so as to cover almost the entire front surface or back surface of the non-contact IC cards 10A and 10B.

  In the example shown in FIG. 2, the pressing portions of the pressure sensitive switches 13 </ b> A and 13 </ b> B cover almost the entire surface of the remaining contactless IC cards 10 </ b> A and 10 </ b> B except for the area between the antenna 12 and the IC chip 11. However, the pressure-sensitive switch pressing portions may be provided on both the front and back surfaces so that the pressure-sensitive switch pressing portions cover substantially the entire surface of the front and back surfaces. In some cases, the pressing portions of the pressure-sensitive switches 13A and 13B may have a shape that covers all areas on the front and back surfaces of the non-contact IC cards 10A and 10B including the areas of the antenna 12 and the IC chip 11. good. In the case of forming a shape that covers the entire surface of the contact or non-contact IC cards 10A and 10B including the area of the antenna 12 and the IC chip 11, the pressing portions of the pressure sensitive switches 13A and 13B are the antenna 12 and the IC chip 11, respectively. A structure in which the layer is formed in a layer different from the layer in which the layer is installed may be used.

(Description of operation of embodiment)
Next, the non-contact IC cards 10A and 10B shown in FIGS. 1 and 2 are changed from a state in which communication with an external device is impossible to a state in which communication is possible. The operation until the communication with an external apparatus is restored after use is described with reference to the activity diagram of FIG. FIG. 3 is an activity diagram for explaining a procedure for changing the communication state of the non-contact IC card 10A shown in FIGS. In the following description, in order to simplify the description, the case of the non-contact IC card 10A shown in FIGS. 1A and 2A will be described, but FIGS. 1B and 2B will be described. The same applies to the case of the non-contact IC card 10B, and a detailed description thereof is omitted here.

  That is, in order to control the communication state with the external device of the non-contact IC card 10A, 10B, the contact of the pressure-sensitive switch 13A in the case of the non-contact IC card 10A of FIGS. The antenna connection line 14 is arranged at a position where the connection of the antenna connection line 14 is opened / conducted to control whether or not the antenna 12 is energized, whereas the non-contact ICs shown in FIGS. 1B and 2B are used. In the case of the card 10B, the contact point of the pressure-sensitive switch 13B is arranged at a position where the connection of the specific internal wiring 15 in the IC chip 11 is opened / conducted to control whether the IC chip 11 can operate. Only the point is different.

  In the activity diagram of FIG. 3, when the user intends to use the non-contact IC card 10A, if the user performs an operation of applying pressure to the non-contact IC card 10A using a finger or a palm, the pressure sensitivity of the non-contact IC card 10A The contact of the switch 13A is turned on (closed state), the antenna connection line 14 is switched to the conductive state, the IC chip 11 and the antenna 12 are connected, and the non-contact IC card 10A is Communication with an external device is possible (step ST1). As a result, the non-contact IC card 10A can be used.

  When the non-contact IC card 10A is held over the non-contact IC card reader / writer while pressure is applied to the non-contact IC card 10A, communication is performed between the non-contact IC card 10A and the non-contact IC card reader / writer. The process desired by the user, for example, electronic payment, personal authentication, and the like is performed (step ST2).

  When the user releases the finger or palm pressure applied to the non-contact IC card 10A at the stage where the desired processing is completed, the pressure-sensitive switch 13A of the non-contact IC card 10A reacts to turn off (open state). Thus, the antenna connection line 14 is switched to the disconnected state, the connection between the IC chip 11 and the antenna 12 is released, and the non-contact IC card 10A becomes incapable of communicating with an external device ( Step ST3). As a result, the contactless IC card 10A is switched to a state where it cannot be used, and the contactless IC card 10A cannot be accessed from the outside.

  That is, only while pressure is applied to the non-contact IC card 10A, the non-contact IC card 10A can communicate with an external device and can perform a desired process. On the other hand, in a normal state where no pressure is applied to the non-contact IC card 10A, the non-contact IC card 10A cannot communicate with an external device, and the non-contact IC card is not used. It is automatically set to a state that can prevent an unjustified skimming action for 10A.

  Here, as shown in FIG. 4, the non-contact IC cards 10 </ b> A and 10 </ b> B employ a structure that allows unreasonable skimming prevention when not in use and does not impair convenience during use. . FIG. 4 is a schematic diagram for explaining an operation when the non-contact IC card 10A shown in FIGS. 1 and 2 is used. In the following description, in order to simplify the description, the case of the non-contact IC card 10A shown in FIGS. 1A and 2A will be described, but FIGS. 1B and 2B will be described. The same applies to the case of the non-contact IC card 10B, and a detailed description thereof is omitted here.

  As shown in FIG. 2A, the pressing portion of the pressure sensitive switch 13A provided on the non-contact IC card 10A is structured to cover almost the entire surface of the non-contact IC card 10A. Thus, even if the user performs an operation of applying pressure to any part of the non-contact IC card 10A using a finger or palm, the pressure sensitive switch 13A is reacted to switch to the on state (closed state). It has a structure that can.

  That is, as long as the user knows where the contactless IC card 10A exists, the contactless IC card can be viewed without having to bother the position of the pressure sensitive switch 13A on the contactless IC card 10A. When pressure is applied to the card 10A with a finger or palm, the pressure can be applied to the pressing portion of the pressure sensitive switch 13A.

  Therefore, for example, as shown in FIG. 4, the non-contact IC card 10 </ b> A is stored in the storage item 20 such as a wallet or a commuter pass, and the stored item 20 has a finger or a palm. When a pressure is applied using the holding portion 22 that holds the non-contact IC card 10A, the pressure-sensitive switch 13A of the non-contact IC card 10A that is stored is pressed against the pressing portion of the stored non-contact IC card 10A. The pressure can be applied, and the pressure sensitive switch 13A can be reacted to switch the contact to the on state (closed state).

  In this way, when the stored item 20 is held over the non-contact IC card reader / writer 21 as shown in FIG. 4 with the pressure applied to the stored item 20 in which the non-contact IC card 10A is stored. Communication between the non-contact IC card 10A stored in the storage item 20 and the non-contact IC card reader / writer 21 can be performed, and processing desired by the user can be performed.

  That is, the user does not bother to take out the non-contact IC card 10A from the stored item 20 as long as the user knows the stored item 20 such as a wallet or a commuter pass in which the non-contact IC card 10A is stored. By simply applying pressure to the stored item 20 and holding it over the non-contact IC card reader / writer 21 while being stored, a desired process can be performed.

  Furthermore, after the desired processing is completed, as long as the pressure applied to the stored item 20 is released while the non-contact IC card 10A is stored, the pressure sensitive switch 13A is caused to react, The contact can be returned to the off state (open state), and the non-contact IC card 10A can be automatically shifted to a state where communication with the outside is impossible. Therefore, even if the special operation for preventing skimming is not purposely performed, even if the stored item 20 containing the non-contact IC card 10A is stored in a pocket or the like, an unjust skimming action for the non-contact IC card 10A is performed. Can be prevented.

  In addition to applying pressure to the stored item 20 by the holding portion 22 such as a finger or a palm, for example, a non-contact IC card reader / writer 21 that is performing communication with the non-contact IC card 10A to perform a desired process. By pressing the stored item 20 against the reading / writing surface, pressure may be applied to the pressing portion of the pressure sensitive switch 13A of the non-contact IC card 10A.

(Explanation of effect of embodiment)
As described in detail above, the following effects are obtained in the present embodiment.

  Only when communication / processing for the non-contact IC cards 10A and 10B is necessary, by applying pressure to the pressure sensitive switches 13A and 13B, the IC chip 11 mounted on the non-contact IC cards 10A and 10B is externally applied. Since it can be switched to a state in which communication is possible, in a normal time when the non-contact IC card is not used, the non-contact IC can be simply maintained by maintaining the pressure-sensitive switches 13A and 13B without applying pressure. Unfair skimming on the cards 10A and 10B can be reliably prevented.

  In addition, since the pressing portions of the pressure sensitive switches 13A and 13B are formed so as to cover almost the entire surfaces of the non-contact IC cards 10A and 10B, the non-contact IC cards 10A and 10B can be used for storing items such as wallets and commuter passes. Even in a state of being housed in the inside, by applying pressure from above the stored material, the IC chip 11 mounted on the non-contact IC card 10A, 10B is switched to a state where communication from the outside is possible. Therefore, desired processing such as electronic payment and authentication using the contactless IC cards 10A and 10B can be performed without impairing user convenience.

  The configuration of the preferred embodiment of the present invention has been described above. However, it should be noted that such embodiments are merely examples of the present invention and do not limit the present invention in any way. Those skilled in the art will readily understand that various modifications and changes can be made according to a specific application without departing from the gist of the present invention.

10A Non-contact IC card 10B Non-contact IC card 11 IC chip 12 Antenna 13A Pressure-sensitive switch 13B Pressure-sensitive switch 14 Antenna connection line 14a Active line 14b of antenna connection line 14 Return line 15 of antenna connection line 14 Internal wiring 20 Storage 21 Non-contact IC card reader / writer 22 holding part

Claims (8)

In a non-contact IC card comprising an antenna for transmitting / receiving radio waves to / from an external device and an IC chip that performs processing by communicating via the antenna, the contact is normally applied when no external pressure is applied. Is in an OFF state, and further includes a pressure-sensitive switch that switches the contact to an ON state when pressure is applied from the outside. When pressure is not applied from the outside to the pressure-sensitive switch, the Since the contact of the pressure switch remains in the OFF state, the IC chip is maintained in a state where communication with the outside is impossible, and when pressure is applied to the pressure sensitive switch from the outside. , By switching the contact of the pressure sensitive switch to the ON state, the IC chip is set to a state in which communication with the outside is possible via the antenna,
The feeling pressing portion of the pressure switch, the contactless IC card you wherein it is formed in a shape covering substantially the entire area of the front or rear surface or both surfaces of the card. In a non-contact IC card comprising an antenna for transmitting / receiving radio waves to / from an external device and an IC chip that performs processing by communicating via the antenna, the contact is normally applied when no external pressure is applied. Is in an OFF state, and further includes a pressure-sensitive switch that switches the contact to an ON state when pressure is applied from the outside. When pressure is not applied from the outside to the pressure-sensitive switch, the Since the contact of the pressure switch remains in the OFF state, the IC chip is maintained in a state where communication with the outside is impossible, and when pressure is applied to the pressure sensitive switch from the outside. , By switching the contact of the pressure sensitive switch to the ON state, the IC chip is set to a state in which communication with the outside is possible via the antenna,
Contactless IC card pressing portion of the pressure sensitive switch, characterized in that it is formed in a shape to cover the front or back surface of the entire area of the card. Contactless IC card according to claim 1 or 2 contact of the pressure sensitive switch, characterized in that it is arranged in the antenna connection line that connects between the IC chip and the antenna. Of the internal wirings connecting the circuits in the IC chip, a specific internal wiring arbitrarily determined in advance is pulled out from the external terminal of the IC chip, and the contact point of the pressure-sensitive switch is placed on the extracted internal wiring. The contactless IC card according to claim 1, wherein the contactless IC card is arranged. A non-contact IC card skimming prevention method for preventing skimming with respect to a non-contact IC card comprising an antenna for transmitting / receiving radio waves to / from an external device and an IC chip for performing processing by communicating via the antenna. Normally, when the pressure from the outside is not applied, the contact is in the off state, and when the pressure is applied from the outside, the contact is switched to the on state. When no pressure is applied from the outside, the contact of the pressure-sensitive switch remains in the off state, so that the IC chip is maintained in a state where communication with the outside is impossible, and the sense When pressure is applied to the pressure switch from the outside, the contact of the pressure sensitive switch is turned on so that the IC chip can Is set in the communication state capable of externally,
The feeling pressing portion of the pressure switch, the non-contact IC card skimming prevention how to characterized in that it is formed in a shape covering substantially the entire front or back surface or both surfaces of the contactless IC card. A non-contact IC card skimming prevention method for preventing skimming with respect to a non-contact IC card comprising an antenna for transmitting / receiving radio waves to / from an external device and an IC chip for performing processing by communicating via the antenna. Normally, when the pressure from the outside is not applied, the contact is in the off state, and when the pressure is applied from the outside, the contact is switched to the on state. When no pressure is applied from the outside, the contact of the pressure-sensitive switch remains in the off state, so that the IC chip is maintained in a state where communication with the outside is impossible, and the sense When pressure is applied to the pressure switch from the outside, the contact of the pressure sensitive switch is turned on so that the IC chip can Is set in the communication state capable of externally,
The feeling pressing portion of the pressure switch, the contactless IC card skimming prevention how to characterized in that it is formed in a shape to cover the front or back surface of the entire surface of the non-contact IC card. The contactless IC card skimming prevention method according to claim 5 or 6 , wherein the contact point of the pressure sensitive switch is disposed on an antenna connection line that connects between the IC chip and the antenna. Of the internal wirings connecting the circuits in the IC chip, a specific internal wiring arbitrarily determined in advance is pulled out from the external terminal of the IC chip, and the contact point of the pressure-sensitive switch is placed on the extracted internal wiring. The non-contact IC card skimming prevention method according to claim 5 or 6 , wherein:

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