JP5229800B2 - Non-contact IC card - Google Patents

Description

  The present invention relates to a technique for preventing unauthorized use of a non-contact type IC card for non-contact data communication with an external device.

  For example, in a game hall equipped with a pachinko machine or a slot machine, a system is generally adopted in which acquired pachinko balls and medals are counted by a counter and can be exchanged for a prize corresponding thereto. In this case, in addition to ordinary commodities such as cigarettes, there are other prizes for exchanging for cash. In recent years, the mechanization and automation of prize exchanges has progressed, and the number of balls played can be exchanged for prizes or prizes. In many cases, a predetermined card is used so that the exchange from cash to cash can be performed easily and speedily. In this type of card, in addition to magnetic recording type and bar code type cards, non-contact type IC cards are used. An article having a commercial value (for example, a medal or a coin made of precious metal) is embedded therein. In the case of a card in which this type of article is embedded, it is conceivable to forge or alter the card by extracting the article in the card or replacing it with an inexpensive counterfeit.

  Patent Document 1 is a known example of an IC card having a function for preventing unauthorized removal of articles as described above. The IC card disclosed in Patent Document 1 transmits an antenna coil for communication with an external device, a capacitor (capacitor) that forms a resonance circuit with the antenna coil, and transmits recording data to the external device via the antenna coil. An IC module that performs the above processing, a base material layer on which an article that is a noble metal is mounted, a circuit layer to which the antenna coil and the IC module are fixed, and the like.

  In Patent Document 1, for the purpose of illegally taking out an article from an IC card, when the base material layer is peeled off from the circuit layer, the antenna coil and the IC module are peeled off from the circuit layer together with the base material layer. . That is, it is difficult to remove the base material layer from the card without damaging the antenna coil or the like. In this way, the IC card with the damaged antenna coil cannot communicate with the external device. For example, the data recorded in the IC module cannot be read out by the external device. Can be used to prevent unauthorized use.

JP 2006-209226 A (FIG. 3-4, paragraph numbers 0016-0018)

  However, even in Patent Document 1, it is not impossible to illegally extract articles that are noble metals. That is, in the IC card of Patent Document 1, it is not possible to take out the article without damaging the antenna coil or the like by cutting out the base material layer from the surface side of the IC card (upper side of FIG. 3 of Patent Document 1).

  Further, non-contact type IC cards can be applied to bank cards and the like, but in that case, there is a concern about information leakage due to illegal skimming in the mailing process. That is, when a non-contact IC card is mailed in an envelope or the like, the personal information recorded in the IC card can be read by pressing the card reader or the like over the envelope or the like. it can. For this reason, in this type of IC card, there has been an urgent need to establish a technology that can reliably prevent information leakage resulting from illegal skimming.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a non-contact type IC card that can reliably prevent unauthorized removal of articles such as precious metals from the IC card. To do .

  As shown in FIG. 1, the non-contact type IC card according to the present invention includes a non-contact type data communication resonance circuit for an article 21 and a non-contact type data communication circuit incorporated in a main body 3. Target IC cards. In the IC card 1 of the present invention, the resonance circuit includes an antenna coil 5 for communication with the external device 7 and a capacitor 11 connected in parallel to the antenna coil 5. A part of the capacitor 11 is fixed in an integrated state with the article 21. When the article 21 is separated from the main body 3, the part of the capacitor 11 fixed to the article 21 together with the article 21 is removed from the resonance circuit. By being separated, the resonance frequency of the resonance circuit is changed.

  The non-contact type IC card 1 here includes a card holder, a tag, a seal, a wristband, a ticket, a label, a token, and the like. The article 21 includes a case where the article 21 is fixed to the surface of the main body 3 and a case where the article 21 is embedded in the main body 3. A part of the capacitor 11 includes at least a part of the electrodes 14 and 15, a connector 27 for connecting to the antenna coil 5, and the like, and also includes a case of constituting a part of the article 21. The integration of a part of the capacitor 11 into the article 21 includes the case where a part of the capacitor 11 is adhered to the article 21 so as not to be detached, and the case where a part of the capacitor 11 is formed on the article 21 by an etching pattern or a printing pattern. included. The article 21 includes metals such as precious metals and jewelry.

  As shown in FIG. 1, the capacitor 11 includes an upper electrode 14 and a lower electrode 15 that are formed with an insulating substrate 2 interposed therebetween. The upper electrode 14 of the capacitor 11 has one surface fixed to the article 21 by a strong adhesive layer 22 and the other surface to the insulating substrate 2 by a weak adhesive layer 16 having a lower adhesive strength than the strong adhesive layer 22. It is fixed. When the article 21 is separated from the main body 3, the adhesive state between the upper electrode 14 and the insulating substrate 2 by the weak adhesive 16 is released, and the upper electrode 14 is separated from the substrate 2 together with the article 21. Yes.

  As shown in FIG. 6, the capacitor 11 includes an upper electrode 14 and a lower electrode 15 that are formed with the insulating substrate 2 interposed therebetween, and a connector 27 that electrically connects the upper electrode 14 and the antenna coil 5. Can be included. One side of the connector 27 is fixed to the article 21 by the adhesive layer 22 so as not to be detached. When the article 21 is separated from the main body 3, the connector 27 is separated from the upper electrode 14 together with the article 21.

  In the non-contact type IC card 1 according to the present invention, when a part of the capacitor 11 is fixed in an integrated state with the article 21, and the article 21 is separated from the main body 3, a part of the capacitor 11 is The resonance frequency is changed by being separated from the resonance circuit. According to this, when the article 21 is extracted from the main body 3, a part of the capacitor 11 is separated, the resonance frequency is changed, and the resonance circuit can be established from the frequency band where the communication state with the external device 7 can be established. Can be shifted. Therefore, after the article 21 is extracted from the main body 3, proper communication with the external device 7 by the IC card 1 becomes difficult and normal use is impossible. Therefore, the article 21 is extracted or the article 21 is replaced. Thus, unauthorized use of the IC card 1 resulting from card counterfeiting can be reliably prevented.

Specifically, the upper electrode 14 of the capacitor 11 is fixed to the article 21 with the strong adhesive layer 22 and detachably fixed to the substrate 2 with the weak adhesive layer 16, and the article 21 is separated from the main body 3. In this case, the upper electrode 14 can be separated from the substrate 2 together with the article 21.
When one surface of the connector 27 that electrically connects the upper electrode 14 and the antenna coil 5 is fixed to the article 21 by the adhesive layer 22 so as not to be detached, the connector 21 is separated from the main body 3. 27 may be separated from the upper electrode 14 together with the article 21.
According to this, when the article 21 is separated from the main body 3, the upper electrode 14 is separated from the substrate 2, or the connector 27 is separated from the upper electrode 14, thereby changing the resonance frequency of the resonance circuit. Therefore, it is possible to reliably deteriorate the communication state with the external device 7, make communication between the IC card 1 and the external device 7 difficult, and make the IC card 1 unusable. Therefore, unauthorized use of the IC card 1 resulting from card forgery such as extraction of the article 21 or replacement of the article 21 can be reliably prevented.

First Embodiment FIGS. 1 to 5 show a first embodiment of a non-contact type IC card according to the present invention. In the drawings, the thickness of each element is exaggerated for easy understanding. As shown in FIGS. 1 and 2, the IC card 1 is formed, for example, in a square shape, and an insulating substrate 2 formed of an insulating plastic sheet or the like is incorporated in a plastic card body 3. Yes. On one surface 2 a (upper side in FIG. 1) of the insulating substrate 2, an antenna coil 5 provided in a spiral shape is disposed, and the IC module 6 is fixed in a region surrounded by the antenna coil 5. (See FIG. 4). Both ends of the antenna coil 5 are connected to the connection terminals 8 and 9 of the IC module 6 with a conductive adhesive or the like. The antenna coil 5 is formed on one surface 2a of the insulating substrate 2 with an etching pattern or a printing pattern. The antenna coil 5 may be formed by winding a thin coated copper wire in a loop shape.

  Further, as shown in FIG. 3, capacitors (capacitors) 11 and 12 are connected in parallel to both ends of the antenna coil 5, and a resonant circuit is formed by the antenna coil 5 and the capacitors 11 and 12. The upper electrode 14 of the capacitor 11 is formed in a rectangular shape as shown in FIGS. 2 and 4, and almost the entire lower surface (the other surface) of the upper electrode 14 is on one surface 2 a of the insulating substrate 2. It is fixed (adhered) with a weak adhesive layer 16. The lower electrode 15 of the capacitor 11 is formed in a rectangular shape, and is formed on the other surface 2b (lower side in FIG. 1) of the insulating substrate 2 by an etching pattern or a printing pattern. Both electrodes 14 and 15 of the capacitor 11 are formed facing each other with the insulating substrate 2 and the weak adhesive layer 16 in between. The capacitor 12 may be a stray capacitance (parasitic capacitance) of the antenna coil 5.

  One end portion 18 of the antenna coil 5 is connected to the lower electrode 15 of the capacitor 11 through a through hole 19 provided in the insulating substrate 2. The other end 20 of the antenna coil 5 is crimped in a state where the other end 20 (see FIG. 4) of the antenna coil 5 and the end of the upper electrode 14 of the capacitor 11 are overlapped as shown in FIG. The upper electrode 14 of the capacitor 11 is connected to the capacitor 11. The other end 20 of the antenna coil 5 and the upper electrode 14 of the capacitor 11 may be connected only by contact, or may be connected by soldering or the like. The other end portion 20 of the antenna coil 5 is formed in a rectangular shape, and is formed on one surface 2 a of the insulating substrate 2 by an etching pattern or a printing pattern as in the antenna coil 5.

  A rectangular parallelepiped shaped article (premium) 21 made of noble metal or the like is incorporated in the card body 3, and the upper surface (one surface) of the upper electrode 14 of the capacitor 11 is integrated with the article 21 by the strong adhesive layer 22. It is fixed (adhered) in the applied state. As a result, the upper electrode 14 of the capacitor 11 cannot be detached from the article 21. The adhesive strength of the weak adhesive layer 16 is weaker than that of the strong adhesive layer 22. For example, when the article 21 is separated from the IC card 1, the weak adhesive layer 16 is insulated from the upper electrode 14 of the capacitor 11. The adhesive state with the conductive substrate 2 is released, and the upper electrode 14 is separated from the substrate 2 together with the article 21 (state shown in FIG. 5). At this time, the end portion of the upper electrode 14 of the capacitor 11 is also separated from the other end portion 20 of the antenna coil 5. A clear sheet 23 made of a transparent resin is disposed on the surface of the card body 3 so as to cover the upper side of the article 21, and the article 21 can be visually observed through the clear sheet 23.

  The IC module 6 communicates various data (digital signals) with the reader / writer device 7 via the antenna coil 5 when the IC card 1 is mounted on the reader / writer device 7 as an external device, for example. As shown in FIG. 3, the reader / writer device 7 includes an antenna coil 24 and a control circuit 25, and a carrier (carrier wave) including data output from the control circuit 25 is transmitted from the antenna coil 24. . The IC module 6 receives the carrier from the reader / writer device 7 by the antenna coil 5, extracts the data, and performs processing according to the data. For example, the IC module 6 reads out the data recorded therein according to the data from the reader / writer device 7 and transmits it to the reader / writer device 7.

  The inductance of the antenna coil 5 of the IC card 1 and the capacities of the capacitors 11 and 12 are respectively set so that the resonance frequency is optimized when the IC card 1 is properly mounted on the reader / writer device 7.

  Next, the operation of the non-contact type IC card 1 of the first embodiment will be described. For example, when the article 21 is illegally extracted from the IC card 1, if the clear sheet 23 is removed from the card body 3 and the article 21 is forcibly separated from the card body 3, as shown in FIG. The upper electrode 14 is separated from the insulating substrate 2 together with the article 21. As a result, the upper electrode 14 is separated from the resonance circuit, the capacitance of the capacitor 11 disappears, and the resonance frequency of the resonance circuit of the IC card 1 changes.

  The resonance frequency of the resonance circuit of the IC card 1 in this state is deviated from the frequency band in which the communication state with the reader / writer device 7 can be established. Therefore, after the article 21 is extracted from the card body 3, Proper communication with the reader / writer device 7 using an IC card becomes difficult, and normal use becomes impossible. In this case, the read / dryer device 7 determines that the IC card 1 is in an unusable state, and ejects the IC card 1 from the read / dryer device 7. In addition, the read / dryer device 7 outputs information indicating that the card is unusable to, for example, an external management computer. When the upper electrode 14 of the capacitor 11 is detached from the weak adhesive layer 16, the adhesive force of the weak adhesive layer 16 is reduced, and it is difficult to bond the upper electrode 14 of the capacitor 11 to the weak adhesive layer 16 again. Become.

  As described above, when the article 21 is illegally extracted from the IC card 1, the IC card 1 becomes unusable. Therefore, the IC card 1 derived from card forgery such as extraction of the article 21 or replacement of the article 21 is not used. Unauthorized use can be surely prevented. The article 21 may be a jewel or a medal.

Second Embodiment FIGS. 6 to 8 show a second embodiment of a non-contact type IC card according to the present invention. In the second embodiment, as shown in FIGS. 6 and 7, the upper electrode 14 of the capacitor 11 is formed on one surface 2 a of the insulating substrate 2 by an etching pattern or a printed pattern in the same manner as the antenna coil 5. A conductive plate-shaped connector 27 is disposed on the upper side of the upper electrode 14. The capacitor 11 is constituted by the electrodes 14 and 15 and the connector 27.

  The lower surface on one end side (left side in FIG. 6) of the connector 27 is electrically connected to the upper surface of the other end portion 20 of the antenna coil 5 with a conductive adhesive layer 28 having conductivity. One surface (upper surface) of the connector 27 and the upper surface of the other end portion 20 of the antenna coil 5 are bonded to the lower surface of the article 21 with a strong adhesive layer 22 in an inseparable manner, whereby the connector 27 is attached to the article 21. Fixed in an integrated state. Since the other points are the same as those of the first embodiment, the same members are denoted by the same reference numerals, and the description thereof is omitted.

  In the second embodiment, for example, when the article 21 is removed from the card body 3 and the article 21 is forcibly separated from the card body 3 in order to extract the article 21 from the IC card 1 illegally, the connector 27 is The adhesive 21 is separated from the upper electrode 14 of the capacitor 11 together with the article 21 by the adhesive force of the adhesive layer 22. The other end 20 of the antenna coil 5 is cut off from the antenna coil 5 and separated from the insulating substrate 2. As a result, when the article 21 is separated, the connection between the capacitor 11 and the antenna coil 5 is reliably cut off, and the capacitor 11 is completely separated from the resonance circuit (the state of FIG. 8). Thereby, the resonance frequency of the IC card 1 can be shifted reliably.

  Even if the IC card 1 in this state is attached to the read writer device 7, the resonance frequency of the IC card 1 deviates from the optimum value, and the communication state between the IC card 1 and the external device 7 deteriorates. The carrier from the device 7 cannot be properly received, and the reader / writer device 7 cannot receive the data from the IC card 1 properly. Also in this case, the read / dryer device 7 determines that the article 21 is an unusable card that has been removed from the IC card 1 and discharged. In addition, the reader / writer device 7 outputs a message indicating that the processing is impossible to a management computer or the like.

  As described above, even in the second embodiment, if the article 21 is illegally removed from the IC card 1, the IC card 1 becomes unusable. Therefore, it is derived from card forgery such as removal of the article 21 or replacement of the article 21. Unauthorized use of the IC card can be reliably prevented. Further, since the capacitor 11 is completely separated from the resonance circuit, the resonance frequency of the resonance circuit of the IC card 1 can be reliably shifted from the frequency band in which the communication state with the reader / writer device 7 can be established. Further, when the other end portion 20 of the antenna coil 5 is detached from the insulating substrate 2, it becomes difficult to repair the antenna coil 5, and the IC card 1 becomes more unusable.

First Reference Example FIGS. 9 and 10 show a first reference example of a non-contact type IC card. In the first reference example , as shown in FIG. 9, instead of the article 21, a flat sheet body 29 is formed on the surface of the card body 3 (upper side in FIG. 9) so that the sheet body 29 can be peeled off. Separation from the surface of the card body 3 enables proper communication between the IC card 1 and the reader / writer device 7.

  The sheet body 29 is made of a flexible opaque resin or the like, and the upper electrode 14 of the capacitor 11 is accommodated in a recess 30 that is recessed in the center of the back surface of the sheet body 29. The upper electrode 14 of the capacitor 11 is bonded to the concave portion 30 of the sheet body 29 with a strong adhesive layer 22, and the upper electrode 14 of the capacitor 11 is integrated with the sheet body 29, thereby It becomes impossible to leave. The back surface of the sheet body 29 excluding the concave portion 30 is fixed to the surface of the card body 3 with a fine adhesive layer 31 having a lower adhesive strength than the weak adhesive layer 16 that fixes the upper electrode 14 of the capacitor 11 to the insulating substrate 2. ) Thus, the sheet body 29 can be easily separated from the surface of the card body 3.

  Then, when the sheet body 29 is separated from the card body 3, as shown in FIG. 10, the adhesive state between the upper electrode 14 of the capacitor 11 and the insulating substrate 2 by the weak adhesive 16 is released, and the sheet Separated from the insulating substrate 2 together with the body 29. As a result, the upper electrode 14 is separated from the resonance circuit, the capacitance of the capacitor 11 disappears, and the resonance frequency of the resonance circuit of the IC card 1 changes.

In the first reference example , the inductance of the antenna coil 5 of the IC card 1 and the capacitance of the capacitor 12 are set such that the IC card 1 is properly mounted on the read / dryer device 7 with the sheet body 29 separated from the surface of the card body 3. Sometimes, the resonance frequency of the resonance circuit of the IC card 1 is set to be a frequency band in which a communication state with the reader / writer device 7 can be established.

  At least one of the front surface (upper side in FIG. 10) of the card body 3 covered with the sheet body 29 and the back surface of the sheet body 29 has specific information such as a predetermined ID code for enabling the IC card 1 to be used. Have been described. An insulating sheet 32 is fixed to the surface of the card body 3 from which the sheet body 29 has been separated by bonding or the like. For example, when the user separates the sheet body 29 from the surface of the card body 3, reads the unique information and notifies the issuer of the IC card 1 via the Internet or the like, the reader / writer device 7 It is possible to attach the IC card 1 to the reader / writer device 7 and perform processing. Since the other points are the same as those of the first embodiment, the same members are denoted by the same reference numerals, and the description thereof is omitted.

  For example, when the IC card 1 is used as a bank card, the issuer (bank or the like) of the IC card 1 mails the IC card 1 to the user. Then, the user peels off the sheet 29 from the card body 3 and notifies the issuer of the IC card 1 of the unique information and the password, so that the IC card 1 can be used with an automatic teller machine such as a bank. Can be able to. When notifying the issuer of the IC card 1 of the unique information or the like, the user's personal information may be further notified so that the IC card 1 can be used. In this case, impersonation by a person other than the genuine user can be prevented, and the security of the IC card 1 is improved.

As described above, in the first reference example , unless the sheet 29 is separated from the surface of the card body 3, information cannot be read using a card reader device or the like. For example, illegal skimming during mailing is performed. It can be surely prevented.

Second Reference Example FIGS. 11 and 12 show a second reference example of a non-contact type IC card. In the second reference example , as shown in FIGS. 11 and 12, the upper electrode 14 of the capacitor 11 is formed on one surface 2 a of the insulating substrate 2 by an etching pattern or a printed pattern, and the upper electrode 14 of the capacitor 11 is formed. On the upper side, the conductive connector 27 is disposed so as to overlap. The connector 27 of the capacitor 11 is accommodated in the recess 30 on the back surface of the sheet body 29. The connector 27 is bonded in the concave portion 30 of the sheet body 29 with the strong adhesive layer 22 and is fixed in an integrated state with the sheet body 29. The lower surface on one end side (left side in FIG. 11) of the connector 27 is disposed so as to overlap the upper surface of the other end portion 20 of the antenna coil 5. Since the other points are the same as those of the first reference example , the same members are denoted by the same reference numerals, and the description thereof is omitted.

Also in the second reference example , for example, when the user peels off the sheet body 29 from the surface of the card body 3, the connector 27 is detached from the insulating substrate 2 together with the sheet body 29 by the adhesive force of the strong adhesive layer 22. When the user reads the unique information and notifies the issuer of the IC card 1 via the Internet or the like, the user attaches the IC card 1 to the external device 7 and causes the external device 7 to perform processing. It becomes possible.

Even in the second reference example , if the sheet body 29 is not separated from the surface of the card body 3, it is impossible to read information using a card reader device or the like. For example, illegal skimming during mailing is reliably prevented. be able to.

  In the first embodiment and the second embodiment, when the article 21 is formed of a conductive material such as a noble metal, the upper electrode 14 of the capacitor 11 can be constituted by the article 21. Taking the first embodiment as an example, the upper electrode 14 of the capacitor 11 is omitted, the article 21 is fixed to the insulating substrate 2 with the weak adhesive layer 16, and one end of the article 21 is connected to the other end of the antenna coil 5. It will be superimposed on 20.

  In the first embodiment and the second embodiment, the article 21 may be exposed on the surface of the card body 3 by omitting the clear sheet 23. The upper electrode 14 of the capacitor 11 may be formed on the back surface of the article 21 with an etching pattern or a printing pattern, and the capacitor 11 may be fixed in a state of being integrated with the article 21. In the first embodiment, only a part of the upper electrode 14 of the capacitor 11 may be fixed to the article 21 with the strong adhesive layer 22. Similarly, in the second embodiment, only a part of the connector 27 may be fixed to the article 21 with the strong adhesive layer 22.

In the second embodiment, only the connector 27 may be separated together with the article 21 and the other end 20 of the antenna coil 5 may remain on the insulating substrate 2. The article 21 of the first embodiment and the second embodiment may be formed in a sheet shape or in an arbitrary shape. The article 21 may be the IC module 6. In the first reference example and the second reference example , the sheet body 29 may cover the entire surface of the card body 3 or only a part thereof.

In the first reference example and the second reference example , when the sheet body 29 is separated from the surface of the card body 3, communication with the card reader device 7 may be impossible. In this case, for example, when the IC card 1 is discarded, the IC card 1 can be made unusable by peeling off the sheet body 29. Thus, unauthorized use of the IC card 1 after disposal can be suppressed, the security of the IC card 1 can be improved, and the security of the IC card 1 can be improved. The impossibility of communication here includes that communication is extremely difficult and that the communicable distance is shortened.

1 is a longitudinal sectional view of a first embodiment of a non-contact type IC card according to the present invention. It is a top view of an IC card. It is a block block diagram inside an IC card. It is a disassembled perspective view which shows the internal structure of an IC card. It is a longitudinal cross-sectional view which shows the state which forcibly removed the article from the IC card. It is a longitudinal cross-sectional view of 2nd Embodiment of the non-contact-type IC card based on this invention. It is a disassembled perspective view which shows the internal structure of the IC card of 2nd Embodiment. It is a longitudinal cross-sectional view which shows the state which removed the article | item from the IC card of 2nd Embodiment. It is a longitudinal cross-sectional view of the 1st reference example of a non-contact-type IC card. It is a longitudinal cross-sectional view which shows the state which removed the article | item from the IC card of the 1st reference example . It is a longitudinal cross-sectional view of the 2nd reference example of a non-contact-type IC card. It is a longitudinal cross-sectional view which shows the state which removed the article | item from the IC card of the 2nd reference example .

1 IC card 2 the insulating substrate 3 card body 5 antenna coil 7 lead writer 11 capacitor 14 upper electrode 15 lower electrode 16 weakly adhesive layer 21 article 22 Strong adhesive layer 27 connectors

Claims (3)

A non-contact IC card in which an article (21) as a prize and a resonance circuit for non-contact data communication are incorporated in a main body (3),
The resonant circuit includes an antenna coil (5) for communication with an external device (7), and a capacitor (11) connected in parallel to the antenna coil (5),
A part of the capacitor (11) is fixed in an integrated state with the article (21),
When the article (21) is separated from the main body (3), a part of the capacitor (11) fixed to the article (21) together with the article (21) is separated from the resonance circuit, and the resonance circuit A non-contact IC card characterized in that the resonance frequency is changed. The capacitor (11) includes an upper electrode (14) and a lower electrode (15) formed with an insulating substrate (2) interposed therebetween,
The upper electrode (14) of the capacitor (11) has one surface fixed to the article (21) by a strong adhesive layer (22), and the other surface has an adhesive strength higher than that of the strong adhesive layer (22). Is fixed to the insulating substrate (2) by a weak adhesive layer (16),
When the article (21) is separated from the main body (3), the adhesive state between the upper electrode (14) and the insulating substrate (2) by the weak adhesive (16) is released, and the upper electrode The non-contact type IC card according to claim 1, wherein (14) is separated from the substrate (2) together with the article (21) . The capacitor (11) electrically connects the upper electrode (14) and the lower electrode (15) formed with the insulating substrate (2) sandwiched therebetween, and the upper electrode (14) and the antenna coil (5). A connector (27)
One side of the connector (27) is fixed to the article (21) so as not to be detached by an adhesive layer (22),
The said connector (27) is isolate | separated from the said upper electrode (14) with this article | item (21) when the said article | item (21) is isolate | separated from a main body (3). Non-contact IC card .

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