JP2008263427A - Rfid tag and rfid tag holder - Google Patents
Rfid tag and rfid tag holder Download PDFInfo
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- JP2008263427A JP2008263427A JP2007104924A JP2007104924A JP2008263427A JP 2008263427 A JP2008263427 A JP 2008263427A JP 2007104924 A JP2007104924 A JP 2007104924A JP 2007104924 A JP2007104924 A JP 2007104924A JP 2008263427 A JP2008263427 A JP 2008263427A
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- 230000005611 electricity Effects 0.000 abstract description 12
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- 239000002985 plastic film Substances 0.000 abstract description 3
- 230000032258 transport Effects 0.000 description 29
- 239000007787 solid Substances 0.000 description 7
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Abstract
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本発明は、ＲＦＩＤタグ及びＲＦＩＤタグホルダに関し、特に、静電気に弱い電子機器を組み立てる製造工程等において、該電子機器の組み立て作業を行う製造ラインの作業台へ不足した部品を補給する際に、該部品を収容し、該部品の搬送に使用される電気部品搬送箱に取り付けられ、部品補給の管理に用いられるＲＦＩＤタグ及びそのＲＦＩＤタグを保持するＲＦＩＤタグホルダに関する。 The present invention relates to an RFID tag and an RFID tag holder, and in particular, when a shortage of parts is replenished to a workbench of a production line for assembling the electronic equipment in a manufacturing process for assembling an electronic equipment that is vulnerable to static electricity. And an RFID tag holder that holds the RFID tag and is attached to an electrical component transport box used for transporting the component.
ＲＦＩＤ（Radio Frequency IDentification）タグは、図５に示すように、固体識別情報（ＩＤ情報）を埋め込んだＩＣチップ５−１と、アンテナコイル５−２とを、絶縁体のプラスティックシートであるインレット５−３で覆って構成され、電磁界又は電波を用いて近距離の無線通信によって読取り装置（又は読取り及び書込み装置）と情報をやりとりする機能を有する。なお、図５の（ａ）はＲＦＩＤタグの内部構成を示し、同図（ｂ）は、同図（ａ）のＡ−Ａ線断面図である。 As shown in FIG. 5, the RFID (Radio Frequency IDentification) tag includes an IC chip 5-1 in which solid identification information (ID information) is embedded and an antenna coil 5-2, and an inlet 5 that is an insulating plastic sheet. -3, and has a function of exchanging information with a reading device (or reading and writing device) by short-range wireless communication using electromagnetic fields or radio waves. 5A shows the internal configuration of the RFID tag, and FIG. 5B is a cross-sectional view taken along the line AA in FIG. 5A.
ＲＦＩＤタグの種類には、パッシブタグ（受動タグ）とアクティブタグ（能動タグ）の２種類があり、パッシブタグは、読取り装置（又は読取り及び書込み装置）から送出される電磁界又は電波をエネルギー源として動作し、電池を内蔵しない。ＲＦＩＤのアンテナは、読取り装置（又は読取り及び書込み装置）からの電波の一部を反射するが、パッシブタグは、固体識別（ＩＤ）情報をこの反射波に乗せて送信する。反射波の強度は非常に弱いため、アクティブタグに比べてパッシブタグの受信距離は比較的短くなるが、安価に製造することができ、ほぼ恒久的に作動させることができるという利点が有る。 There are two types of RFID tags, passive tags (passive tags) and active tags (active tags). Passive tags use electromagnetic fields or radio waves transmitted from readers (or readers and writers) as energy sources. Works as a battery without built-in. The RFID antenna reflects a part of the radio wave from the reading device (or the reading and writing device), while the passive tag transmits solid identification (ID) information on the reflected wave. Since the intensity of the reflected wave is very weak, the receiving distance of the passive tag is relatively short compared to the active tag, but it has the advantage that it can be manufactured at low cost and can be operated almost permanently.
アクティブタグは電池を内蔵し、自ら電波を発することができるので、読取り装置（又は読取り及び書込み装置）との通信距離を長くすることができる（１０〜１００メートル、又はそれ以上）。また、センサーを内蔵して、自発的に周囲の変化を検出して読取り装置（又は読取り及び書込み装置）に送信することができ、センサーネットワークに利用可能である。 Since the active tag has a battery and can emit radio waves by itself, the communication distance with the reading device (or reading and writing device) can be increased (10 to 100 meters or more). In addition, since a sensor is built in, a change in the surroundings can be detected spontaneously and transmitted to a reading device (or reading and writing device), which can be used for a sensor network.
本発明に関連する先行技術文献として挙げた下記の特許文献１には、ＲＦＩＤタグ及びその取り付け構造が示されている。該文献に記載されたＲＦＩＤタグ及びその取り付け構造は、密封性と周囲からの外力に抗する機械的強度の両方を兼ね備え、安価に構成できること及び電磁波による通信を容易に行うことができるよう、シリンダ状のアンテナコイルと制御部とを有する棒状のＲＦＩＤタグにおいて、アンテナコイルと制御部とを一体的に形成し、非磁性材料の細長い密封体で密封し、更にその密封体の外周面を、両端が開放し且つ長手方向に隙間を設けた金属製の筒体により被覆した構造としたものである。
ＲＦＩＤタグは、読取り装置（又は読取り及び書込み装置）のアンテナと電波を送受する必要があるため、ＲＦＩＤタグのアンテナ周囲を覆うインレットの材質は、絶縁体としなければならないという制約がある。 Since the RFID tag needs to transmit and receive radio waves to and from the antenna of the reading device (or reading and writing device), there is a limitation that the material of the inlet that covers the periphery of the RFID tag antenna must be an insulator.
しかし、絶縁体は帯電し易い性質を有し、静電気に弱い電子機器の部品を搬送する電気部品搬送箱に、絶縁体のＲＦＩＤタグを取り付けると、帯電した絶縁体のＲＦＩＤタグに電気部品が接近したときに、静電誘導による誘起電荷により電気部品が破壊され、或いは、その電気部品自体は破壊されなくても、その電気部品が帯電し、該電気部品を用いて電子機器を組み立てた際に、静電気に弱い他の電気部品が破壊されてしまうという問題がある。本発明は、絶縁体インレットに発生する静電気を除電することができるＲＦＩＤタグ及びＲＦＩＤタグホルダを提供する。 However, the insulator has the property of being easily charged, and when the RFID tag of the insulator is attached to the electrical component transport box that transports the components of the electronic device that is sensitive to static electricity, the electrical component approaches the RFID tag of the charged insulator. When the electronic component is destroyed by the induced charge due to electrostatic induction, or even when the electrical component itself is not destroyed, the electrical component is charged and the electronic device is assembled using the electrical component. There is a problem that other electrical components that are vulnerable to static electricity are destroyed. The present invention provides an RFID tag and an RFID tag holder that can neutralize static electricity generated in an insulator inlet.
上記課題を解決するために、本発明のＲＦＩＤタグは、ＩＣチップ及びアンテナコイルと、該ＩＣチップ及びアンテナコイルを覆う絶縁体のインレットと、該インレットの全外周を覆う導体性樹脂とから成り、前記導体性樹脂は、前記アンテナコイルによる電波の送受を妨げることなくかつ前記インレットを静電遮蔽する抵抗率を有する構成としたことを特徴とする。 In order to solve the above problems, the RFID tag of the present invention comprises an IC chip and an antenna coil, an insulating inlet that covers the IC chip and the antenna coil, and a conductive resin that covers the entire outer periphery of the inlet. The conductive resin is configured to have a resistivity that does not interfere with transmission and reception of radio waves by the antenna coil and electrostatically shields the inlet.
また、本発明のＲＦＩＤタグホルダは、ＩＣチップ及びアンテナコイルを絶縁体のインレットで覆ったＲＦＩＤタグを収納するＲＦＩＤタグホルダであって、該ＲＦＩＤタグホルダを、前記アンテナコイルによる電波の送受を妨げることなくかつ前記インレットを静電遮蔽する抵抗率を有する導体性樹脂で形成したことを特徴とする。 The RFID tag holder of the present invention is an RFID tag holder for storing an RFID tag in which an IC chip and an antenna coil are covered with an insulator inlet, and the RFID tag holder can be used without interfering with transmission and reception of radio waves by the antenna coil. The inlet is formed of a conductive resin having a resistivity for electrostatic shielding.
また、前記ＲＦＩＤタグホルダは、前記ＲＦＩＤタグを収納するＲＦＩＤタグ収納部と、電気部品搬送箱に取り付けるホルダ取り付け部とを有し、前記ＲＦＩＤタグ収納部及びホルダ取り付け部を、折り曲げ加工及びプレス加工のみにより一体成形すると共に、前記ＲＦＩＤタグ収納部を、前記導体性樹脂の弾性により開口可能な構造としたことを特徴とする。 The RFID tag holder includes an RFID tag storage portion for storing the RFID tag and a holder mounting portion to be attached to an electric component transport box, and the RFID tag storage portion and the holder mounting portion are only bent and pressed. And the RFID tag housing portion is structured to be openable by the elasticity of the conductive resin.
本発明によれば、絶縁体のインレットで覆われたＲＦＩＤタグを、電波の送受を妨げることなくかつインレットを静電遮蔽する抵抗率を有する導体性樹脂で覆ったことにより、ＲＦＩＤタグを除電することができ、静電気に弱い電子機器の部品を搬送する電気部品搬送箱に該ＲＦＩＤタグを取り付けても、該電気部品搬送箱内の電気部品を静電破壊又は帯電を防ぐことができる。 According to the present invention, an RFID tag covered with an insulating inlet is covered with a conductive resin having a resistivity for electrostatically shielding the inlet without interfering with the transmission and reception of radio waves, so that the RFID tag is neutralized. Even if the RFID tag is attached to an electrical component transport box that transports components of electronic devices that are vulnerable to static electricity, the electrical components in the electrical component transport box can be prevented from being electrostatically broken or charged.
また、絶縁体のインレットで覆われたＲＦＩＤタグを、電波の送受を妨げることなくかつインレットを静電遮蔽する抵抗率を有する導体性樹脂のＲＦＩＤタグホルダに収納し、該ＲＦＩＤタグホルダを電気部品搬送箱に取り付けることにより、静電対策された電気部品搬送箱、該電気部品搬送箱を置載する棚、作業台又は搬送作業者を介して絶縁体のインレットに発生する静電気を除電することができ、静電気に弱い電子機器の部品を搬送する電気部品搬送箱に該ＲＦＩＤタグホルダを取り付けても、該電気部品搬送箱内の電気部品を静電破壊又は帯電を防ぐことができる。また、抵抗値の変更は、ＲＦＩＤタグのインレット材質を変更することなく、使用環境に合わせた抵抗値のＲＦＩＤタグホルダを成形して対応することができる。 In addition, the RFID tag covered with the insulating inlet is housed in an RFID tag holder made of a conductive resin having a resistivity for electrostatically shielding the inlet without interfering with the transmission and reception of radio waves, and the RFID tag holder is stored in the electric component transport box. By attaching to, it is possible to remove static electricity generated in the inlet of the insulator via the electrical component transport box that has been subjected to static electricity, the shelf on which the electrical component transport box is placed, the work table or the transport worker, Even if the RFID tag holder is attached to an electrical component transport box that transports components of electronic devices that are sensitive to static electricity, the electrical components in the electrical component transport box can be prevented from being electrostatically damaged or charged. Further, the resistance value can be changed by forming an RFID tag holder having a resistance value suitable for the use environment without changing the inlet material of the RFID tag.
図１は本発明によるＲＦＩＤタグの断面図を示す。同図に示すように、本発明によるＲＦＩＤタグは、固体識別情報（ＩＤ情報）を埋め込んだＩＣチップ５−１と、アンテナコイル５−２とを、絶縁体のプラスティックシートである絶縁体インレット５−３で覆った従来のＲＦＩＤタグの外周を、導電性プラスチック（導体樹脂）１−１で覆い、インレット５−３を静電遮蔽したものである。 FIG. 1 shows a cross-sectional view of an RFID tag according to the present invention. As shown in the figure, the RFID tag according to the present invention includes an IC chip 5-1 in which solid identification information (ID information) is embedded, and an antenna coil 5-2, and an insulator inlet 5 which is an insulating plastic sheet. The outer periphery of a conventional RFID tag covered with -3 is covered with a conductive plastic (conductor resin) 1-1, and the inlet 5-3 is electrostatically shielded.
このとき使用する導電性プラスチック（導体樹脂）１−１の電気抵抗率は、抵抗値があまり低いと静電遮蔽の効力が大きくなるため電波送受の機能が失われてしまい、ＲＦＩＤタグが固体識別情報の送受信を行うことができなくなり、また、抵抗値が高過ぎると、静電遮蔽の効力が小さくなってインレット５−３が静電気を帯びてしまうため、抵抗値として１０８〜１０１２Ω・ｍの導電性材料を使用することにより、数メートル離れた読取り装置（又は読取り及び書込み装置）のアンテナとＲＦＩＤタグとの間で、電波の送受により支障なく固体識別情報を送受信することができると共に、インレット５−３の帯電を防ぎ、インレット５−３の静電対策を施すことができる。 As for the electrical resistivity of the conductive plastic (conductor resin) 1-1 used at this time, if the resistance value is too low, the effectiveness of electrostatic shielding increases, so the function of transmitting and receiving radio waves is lost, and the RFID tag is identified solidly. If information cannot be transmitted / received and the resistance value is too high, the effectiveness of electrostatic shielding is reduced and the inlet 5-3 is charged with static electricity. Therefore, the resistance value is 10 8 to 10 12 Ω · By using a conductive material of m, it is possible to transmit and receive solid identification information between the antenna of the reading device (or reading and writing device) several meters away and the RFID tag without any trouble by sending and receiving radio waves. , Charging of the inlet 5-3 can be prevented, and countermeasures against static electricity of the inlet 5-3 can be taken.
次に本発明によるＲＦＩＤタグホルダについて説明する。電気部品搬送箱に取り付けるＲＦＩＤタグとして、市販の一般的なＲＦＩＤタグを使用する場合は、該ＲＦＩＤタグに静電対策の加工を新たに施すことは容易ではないため、該ＲＦＩＤタグを取り付けるホルダの構造を、ＲＦＩＤタグの全体を覆う構造とし、該ホルダを導電性プラスチック（導体樹脂）で構成することにより、前述の構成と同様の静電対策を施すことが可能となる。 Next, the RFID tag holder according to the present invention will be described. When a commercially available general RFID tag is used as an RFID tag to be attached to the electric component transport box, it is not easy to newly apply an anti-static process to the RFID tag. When the structure covers the entire RFID tag and the holder is made of conductive plastic (conductor resin), it is possible to take the same electrostatic countermeasures as those described above.
図２に、本発明によるＲＦＩＤタグホルダの構造を示す。同図の（ａ）及び（ｂ）は、電気部品搬送箱２−２にＲＦＩＤタグホルダ２−１を取り付けたときの斜視図を示し、同図（ｃ）はＲＦＩＤタグホルダ２−１の正面図、及びＲＦＩＤタグホルダ２−１内に保持されるＲＦＩＤタグのインレット５−３を示している。また、図２のＢ−Ｂ線断面図を図３に示している。 FIG. 2 shows the structure of an RFID tag holder according to the present invention. (A) and (b) of the figure shows a perspective view when the RFID tag holder 2-1 is attached to the electrical component transport box 2-2, and (c) is a front view of the RFID tag holder 2-1. And an RFID tag inlet 5-3 held in the RFID tag holder 2-1. FIG. 3 shows a cross-sectional view taken along line BB in FIG.
ＲＦＩＤタグホルダ２−１は、ＲＦＩＤタグが使用する電波を全て吸収又は遮蔽してしまっては、ＲＦＩＤタグが機能しなくなるため、電波が大きく減衰されないよう、電波の波長（周波数）を考慮して、導電性プラスチック（導体樹脂）の厚みや電気抵抗率を最適な値に選定して使用する必要がある。 The RFID tag holder 2-1 takes into account the wavelength (frequency) of the radio wave so that the radio wave is not greatly attenuated because the RFID tag does not function if all the radio wave used by the RFID tag is absorbed or shielded. It is necessary to select and use the optimal values for the thickness and electrical resistivity of the conductive plastic (conductor resin).
一例として、９５３ＭＨｚの電波を使用する場合、ＲＦＩＤタグホルダ２−１の板厚を１波長より十分短い１ｍｍとし、電気抵抗率を１０８〜１０１２Ω・ｍの樹脂を使用することにより、数メートル離れた読取り装置（又は読取り及び書込み装置）のアンテナとＲＦＩＤタグとの間で、電波の送受により支障なく固体識別情報を送受信することができると共に、インレット５−３の帯電を防ぎ、インレット５−３の静電対策を施すことができる。 As an example, when using 953 MHz radio waves, the thickness of the RFID tag holder 2-1 is set to 1 mm, which is sufficiently shorter than one wavelength, and a resin with an electric resistivity of 10 8 to 10 12 Ω · m is used. Solid identification information can be transmitted and received between the antenna of the remote reading device (or reading and writing device) and the RFID tag without any trouble by transmission and reception of radio waves, and charging of the inlet 5-3 is prevented. 3 electrostatic countermeasures can be taken.
また、ＲＦＩＤタグホルダ２−１の構造としては、低コストで製造可能なよう可動部を少なくし、かつ加工が容易となるよう、折り曲げ加工及びプレス加工により一体成形にてホルダ取り付け部２−１１及びＲＦＩＤタグ収納部２−１２を形成し、ＲＦＩＤタグホルダ２−１の樹脂の弾性により、ＲＦＩＤタグ収納部２−１２を開口可能にし、ＲＦＩＤタグ収納部２−１２内にＲＦＩＤインレット５−３を収納する構造とする。 The RFID tag holder 2-1 has a structure in which the holder mounting portion 2-11 is integrally formed by bending and pressing so that the number of movable portions is reduced so that the RFID tag holder 2-1 can be manufactured at low cost and the processing is easy. An RFID tag storage portion 2-12 is formed, and the RFID tag storage portion 2-12 can be opened by the elasticity of the resin of the RFID tag holder 2-1, and the RFID inlet 5-3 is stored in the RFID tag storage portion 2-12. Structure.
ＲＦＩＤタグ収納部２−１２内にＲＦＩＤインレット５−３を収納した後は、ＲＦＩＤタグホルダ２−１の樹脂の弾性により元の形状に戻り、故意にＲＦＩＤタグ収納部２−１２を開口しなければ、ＲＦＩＤタグインレット５−３が落下することはない。 After the RFID inlet 5-3 is accommodated in the RFID tag accommodating portion 2-12, it returns to its original shape due to the elasticity of the resin of the RFID tag holder 2-1, and the RFID tag accommodating portion 2-12 must be opened intentionally. The RFID tag inlet 5-3 never falls.
また、電気部品搬送箱２−２には、作業台の棚の水平状の棒に引っ掛けることができるように、背面にフック２−２１が設けられている。ＲＦＩＤタグ収納後のＲＦＩＤタグホルダ２−１は、電気部品搬送箱２−２のフック２−２１に電気部品搬送箱２−２の側面からスライドして取り付け可能である。フック２−２１の内幅は５ｍｍ程度であり、ＲＦＩＤタグホルダ２−１の板厚が１ｍｍであるとしても、残り４ｍｍの内幅があり、棚の水平状の棒に電気部品搬送箱２−２を引っ掛けることは十分可能である。 In addition, the electrical component transport box 2-2 is provided with a hook 2-21 on the back surface so that the electrical component transport box 2-2 can be hooked on a horizontal bar on the shelf of the work table. The RFID tag holder 2-1 after storing the RFID tag can be attached to the hook 2-21 of the electrical component transport box 2-2 by sliding from the side surface of the electrical component transport box 2-2. The hook 2-21 has an inner width of about 5 mm, and even if the RFID tag holder 2-1 has a plate thickness of 1 mm, the remaining width is 4 mm, and the horizontal part of the shelf has an electrical component transport box 2-2. It is possible enough to hook.
従って、電気部品搬送箱２−２の引っかけ用のフック２−２１を、ＲＦＩＤタグホルダ２−１の取り付けに利用しつつも、電気部品搬送箱２−２の棚への引っ掛けを阻害することなく、ＲＦＩＤタグインレット５−３を電気部品搬送箱２−２に取り付け可能になるとともに、ＲＦＩＤタグホルダ２−１に導電性を持たせることにより、ＲＦＩＤタグインレット５−３に対して静電気対策を施し、更にＲＦＩＤタグの電波送受信を阻害することがない安価なＲＦＩＤタグホルダ２−１を実現することができる。 Accordingly, the hook 2-21 for hooking the electrical component transport box 2-2 is used for attaching the RFID tag holder 2-1, but the hook of the electrical component transport box 2-2 on the shelf is not hindered. The RFID tag inlet 5-3 can be attached to the electrical component transport box 2-2, and the RFID tag holder 2-1 is made conductive, thereby taking measures against static electricity with respect to the RFID tag inlet 5-3. An inexpensive RFID tag holder 2-1 that does not hinder radio wave transmission / reception of the RFID tag can be realized.
図４は、本発明を適用した部品補給の管理システムの構成例を示す。同図に示すように、電気部品搬送箱２−２に、本発明による導体性樹脂で覆ったＲＦＩＤタグ又はＲＦＩＤタグホルダに収納したＲＦＩＤタグ４−１を取り付け、該電気部品搬送箱２−２を運搬用台車４−２に置載して、製造ラインと部品倉庫との間に備えられたゲートを通過する際に、読取り装置（又は読取り及び書込み装置）４−４に接続されたアンテナ４−３を介して、読取り装置（又は読取り及び書込み装置）４−４とＲＦＩＤタグ４−１とで、固体識別情報を送受し、該固体識別情報をパーソナルコンピュータ４−５に取り込み、パーソナルコンピュータ４−５を含む情報通信処理機能により部品補給の管理を行う。 FIG. 4 shows a configuration example of a parts supply management system to which the present invention is applied. As shown in the drawing, an RFID tag covered with a conductive resin according to the present invention or an RFID tag 4-1 stored in an RFID tag holder is attached to an electrical component transport box 2-2, and the electrical component transport box 2-2 is attached to the electrical component transport box 2-2. An antenna 4 connected to a reading device (or reading and writing device) 4-4 when it is placed on a transport carriage 4-2 and passes through a gate provided between a production line and a parts warehouse. 3, the solid identification information is transmitted and received between the reading device (or reading and writing device) 4-4 and the RFID tag 4-1, and the solid identification information is taken into the personal computer 4-5. Management of parts supply is performed by an information communication processing function including 5.
１−１ 導電性プラスチック（導体樹脂）
２−１ ＲＦＩＤタグホルダ
２−１１ ホルダ取り付け部
２−１２ ＲＦＩＤタグ収納部
２−２ 電気部品搬送箱
２−２１ フック
５−１ ＩＣチップ
５−２ アンテナコイル
５−３ インレット
1-1 Conductive plastic (conductor resin)
2-1 RFID tag holder 2-11 Holder mounting portion 2-12 RFID tag storage portion 2-2 Electrical component transport box 2-2 Hook 5-1 IC chip 5-2 Antenna coil 5-3 Inlet
Claims (3)
前記導体性樹脂は、前記アンテナコイルによる電波の送受を妨げることなくかつ前記インレットを静電遮蔽する抵抗率を有することを特徴とするＲＦＩＤタグ。 An IC chip and an antenna coil, an insulating inlet that covers the IC chip and the antenna coil, and a conductive resin that covers the entire outer periphery of the inlet,
The RFID tag according to claim 1, wherein the conductive resin has a resistivity for electrostatically shielding the inlet without interfering with transmission and reception of radio waves by the antenna coil.
前記ＲＦＩＤタグ収納部及びホルダ取り付け部を、折り曲げ加工及びプレス加工により一体成形すると共に、前記ＲＦＩＤタグ収納部を、前記導体性樹脂の弾性により開口可能な構造としたことを特徴とする請求項２に記載のＲＦＩＤタグホルダ。 The RFID tag holder includes an RFID tag storage unit that stores the RFID tag, and a holder mounting unit that is attached to an electric component transport box,
3. The RFID tag housing portion and the holder mounting portion are integrally formed by bending and pressing, and the RFID tag housing portion has a structure that can be opened by the elasticity of the conductive resin. RFID tag holder according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2007104924A JP4833904B2 (en) | 2007-04-12 | 2007-04-12 | RFID tag holder |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2007104924A JP4833904B2 (en) | 2007-04-12 | 2007-04-12 | RFID tag holder |
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| JP2008263427A true JP2008263427A (en) | 2008-10-30 |
| JP4833904B2 JP4833904B2 (en) | 2011-12-07 |
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| JP2007104924A Expired - Fee Related JP4833904B2 (en) | 2007-04-12 | 2007-04-12 | RFID tag holder |
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| JP2010015550A (en) * | 2008-06-06 | 2010-01-21 | Semiconductor Energy Lab Co Ltd | Semiconductor device and method for manufacturing the same |
| US20110002107A1 (en) * | 2008-02-22 | 2011-01-06 | Junsuke Tanaka | Transponder and Booklet |
| CN103928746A (en) * | 2013-01-11 | 2014-07-16 | 禾邦电子(苏州)有限公司 | Chip antenna device and purpose thereof, and electronic product provided with the chip antenna device |
| RU216681U1 (en) * | 2022-10-04 | 2023-02-17 | Общество с ограниченной ответственностью "Уральский центр диагностики оборудования СКЛ" | RFID INDICATOR FOR PORCELAIN OR GLASS INSULATOR |
| WO2024038965A1 (en) * | 2022-08-19 | 2024-02-22 | 주식회사 씨큐앤비 | Rfid card with increased tag recognition rate |
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| RU216681U1 (en) * | 2022-10-04 | 2023-02-17 | Общество с ограниченной ответственностью "Уральский центр диагностики оборудования СКЛ" | RFID INDICATOR FOR PORCELAIN OR GLASS INSULATOR |
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|---|---|
| JP4833904B2 (en) | 2011-12-07 |
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