Source: http://www.google.com/patents/US20060097877?dq=inassignee:doubleclick
Timestamp: 2016-10-27 09:43:13
Document Index: 583029884

Matched Legal Cases: ['art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 103', 'art 207', 'art 207', 'art 203', 'art 203', 'art 207', 'art 203', 'art 304', 'art 304', 'art 304']

Patent US20060097877 - RFID tag - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsThe present invention provides an RFID tag that is very effective in preventing fraudulent uses. The RFID tag includes a base, an antenna pattern provided on the base, a breakdown pattern provided on the base, a circuit chip connected to both the antenna pattern and the breakdown pattern, and a cover...http://www.google.com/patents/US20060097877?utm_source=gb-gplus-sharePatent US20060097877 - RFID tagAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS20060097877 A1Publication typeApplicationApplication numberUS 11/062,483Publication dateMay 11, 2006Filing dateFeb 23, 2005Priority dateNov 9, 2004Also published asCN1773530A, CN100388305C, EP1655690A2, EP1655690A3, US7274296Publication number062483, 11062483, US 2006/0097877 A1, US 2006/097877 A1, US 20060097877 A1, US 20060097877A1, US 2006097877 A1, US 2006097877A1, US-A1-20060097877, US-A1-2006097877, US2006/0097877A1, US2006/097877A1, US20060097877 A1, US20060097877A1, US2006097877 A1, US2006097877A1InventorsShunji Baba, Naoki Ishikawa, Hidehiko Kira, Hiroshi Kobayashi, Shigeru Hashimoto, Yoshiyasu SugimuraOriginal AssigneeFujitsu Limited, Fujitsu Frontech LimitedExport CitationBiBTeX, EndNote, RefManPatent Citations (4), Referenced by (21), Classifications (15), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetRFID tag
DETAILED DESCRIPTION OF THE INVENTION [0041] Embodiments of the present invention will be described below by referring to the drawings. [0042] FIGS. 4(A) and 4(B) are a front view and a side view, respectively, of an RFID tag of the first embodiment of the invention. [0043] An RFID tag 100 of the first embodiment is provided with a base sheet 105 made of PET, a copper antenna pattern 102 provided on the base sheet 105, a breakdown pattern constituted by a copper wire part 103 a and a transparent ITO (Indium Tin Oxide) part 103 b, and an IC chip 101 electrically connected to the antenna pattern 102 via a bump 109. The ITO part 103 b of the breakdown pattern is formed on a sub sheet 104 made of PET, connected to the copper wire part 103 a with a conductive adhesive and electrically connected to the IC chip 101 via the copper part 103 a and the bump 109. The IC chip 101 performs communication with external equipment represented by a reader/writer via the antenna pattern 102. The IC chip 101 has also the function of detecting the presence or absence of the ITO part 103 b in the breakdown pattern. This RFID tag 100 is also provided with a PET cover sheet 106 that is bonded to the base sheet 105 with an adhesive 107 so as to cover the antenna pattern 102, the IC chip 101, etc., and this cover sheet 106 and the sub sheet 104 are bonded together with a strong adhesive 108. [0044] In this first embodiment, the base sheet 105 corresponds to an example of the base of the invention, the antenna pattern 102 corresponds to an example of the first pattern of the invention, the ITO part 103 b of the breakdown pattern corresponds to an example of the second pattern of the invention, the IC chip 101 corresponds to an example of the circuit chip of the invention, and the cover sheet 106 corresponds to an example of the cover of the invention. [0045] Externally to the eyes, in the RFID tag 100 constructed in this manner, the IC chip 101, the antenna pattern 102 and the copper wire part 103 a are recognized and the presence of the transparent ITO part 103 b is not recognized. [0046] This RFID tag 100 is used, with the base sheet 105 side thereof stuck to an article, and the adhesive force of the adhesive 107 is weaker than the adhesive force with which the base sheet 105 side of the RFID tag 100 is bonded to the article. For this reason, when the RFID tag 100 is stripped off by a person who attempts fraudulent uses, the cover sheet 106 comes off from the base sheet 105. Furthermore, the sub sheet 104 is bonded to the cover sheet 106 with the strong adhesive 108. Therefore, while the cover sheet 106 is coming off from the base sheet 105, the sub sheet 104 comes off from the base sheet 105 together with the ITO part 103 b following the cover sheet 106. [0047] FIGS. 5(A) and 5(B) are a front view and a side view, respectively, of an RFID tag of the first embodiment of the invention in a condition after stripping. [0048] When the cover sheet comes off, the IC chip 101, the antenna pattern 102 and the copper wire part 103 a remain on the base sheet 105, and the IC chip 101 detects the absence of the ITO part 103 b shown in FIGS. 4(A) and 4(B) and gives external equipment an alarm via the antenna pattern 102 to the effect that the cover sheet has come off. [0049] Externally to the eyes, the condition of the cover sheet that has come off is the same as the condition of the cover sheet before coming off as viewed to the eyes. Therefore, a person who attempts fraudulent uses cannot recognize the absence of the ITO part 103 b and hence this person does not think of the correction of the missing portion. Therefore, an attempt to perform fraudulent uses is positively found out by the above-described alarm and positive prevention of fraudulent uses is realized. Furthermore, because the ITO part 103 b can be formed in a fine pattern of 30 μm or so and the visibility of the ITO part 103 b formed in such a fine pattern is very low, the prevention of fraudulent uses becomes more positive. [0050] FIGS. 6(A) and 6(B) are a front view and a side view, respectively, of an RFID tag of the second embodiment of the invention. [0051] An RFID tag 200 of the second embodiment is constituted by a base sheet 205 made of PET, an antenna pattern 202 provided on the base sheet 205, a breakdown pattern 203 made of a silver paste, an IC chip 201 electrically connected to both the antenna pattern 202 and the breakout pattern 203 via a bump 209, a concealing layer 207 that covers and conceals the IC chip 201, the antenna pattern 202 and the breakdown pattern 203 and is formed from an opaque ink having the color of silver, and a transparent cover sheet 206 bonded to the base sheet 205 via the concealing layer 207. [0052] In this second embodiment, the base sheet 205 corresponds to an example of the base of the invention, the antenna pattern 202 corresponds to an example of the first pattern of the invention, the breakdown pattern 203 corresponds to an example of the second pattern of the invention, the IC chip 201 corresponds to an example of the circuit chip of the invention, and the cover sheet 206 and the concealing layer 207 constitute an example of the cover of the invention. [0053] The cover sheet 206 and the concealing layer 207 have the same construction as what is called a forgery-preventive label, and the concealing layer 207 is so constructed as to be easily separated into a part on the cover sheet 206 side and a part on the base sheet 205 side, as shown by a dotted line in FIG. 6(B). However, a strong adhesive 208 is also embedded in the concealing layer 207 and a portion of the breakdown pattern 203 is strongly bonded to the cover sheet 206. [0054] Also in the second embodiment shown in FIGS. 6(A) and 6(B), the RFID tag 200 is used, with the base sheet 205 side thereof stuck to an article. And the concealing layer 207 is separated into a part on the cover sheet 206 side and a part on the base sheet 205 side with a force that is weaker than the adhesive force with which the base sheet 205 side is bonded to the article. [0055] FIGS. 7(A) and 7(B) are a front view and a side view, respectively, of an RFID tag of the second embodiment of the invention in a condition after stripping. [0056] When the cover sheet 206 is caused to come off, an exposure part 207 a of the concealing layer is caused to come off together with the cover sheet 206 and a concealing part 207 b of the concealing layer remains on the base sheet 205 side. As a result of this, on the front side of the RFID tag there appears a marking from which the fact that the tag has been stripped off can be ascertained at a glance. A breakdown part 203 a of the breakdown pattern is caused to come off from the base sheet 205 together with the cover sheet 206 due to the presence of the strong adhesive 208, and the breakdown pattern comes to an insulating condition. As with the first embodiment, the insulating condition of the breakdown pattern is detected by the IC chip 201 and the detection is communicated to an external equipment. [0057] Because the remaining part 203 b of the breakdown pattern that remains on the base sheet 205 side is concealed by the concealing part 207 b of the concealing layer and the breakdown part 203 a adhering to the cover sheet 206 side has the color of silver, which is the same cooler as the concealing layer, the fact that the breakdown pattern has been broken down, the broken part and the like are not recognized. For this reason, also in the second embodiment, a motivation for repairing does not arise and positive prevention of fraudulent uses is realized. [0058] Incidentally, a form in which the breakdown pattern of this second embodiment is made of ITO as with the first embodiment is also useful. In a form in which the breakdown pattern of this second embodiment is made of ITO like this, the color of the ink of the concealing layer can be freely selected and, therefore, it is possible to increase the color variations of the tag and the like. As an inexpensive form of RFID tag it is possible to prepare the breakdown pattern from copper. In such an inexpensive form, there is a possibility that a breakdown part adhering to the cover sheet side might be noticed. However, it is rare that one takes the trouble to check the rear side of a cover sheet that has come off, and hence even this form is sufficiently effective in preventing fraudulent uses. [0059] FIG. 8 is a drawing of an RFID tag of the third embodiment of the invention. [0060] An RFID tag 300 of the third embodiment is provided with a base sheet 305, an antenna pattern 302 provided on the base sheet 305, a breakdown pattern 303 made of a silver paste, an IC chip 301 connected to both the antenna pattern 302 and the breakout pattern 303, and a cover sheet 306 that covers the antenna pattern 302, the breakdown pattern 303 and the IC chip 301, and this cover sheet 306 has a concealing part 304 having the color of silver that conceals the breakdown pattern 303. [0061] In this third embodiment, the base sheet 305 corresponds to an example of the base of the invention, the antenna pattern 302 corresponds to an example of the first pattern of the invention, the breakdown pattern 303 corresponds to an example of the second pattern of the invention, the IC chip 301 corresponds to an example of the circuit chip of the invention, and the cover sheet 306 corresponds to an example of the cover of the invention. [0062] In this third embodiment, a long pattern of complicated shape is used as the breakdown pattern 303 and a prescribed value of resistance Ri is produced. The IC chip 301 monitors resistance values in the breakdown pattern 303. [0063] Also the RFID tag 300 of this third embodiment is used, with the base sheet 305 stuck to an article in the same manner as in the first embodiment and the like, and the cover sheet 306 is bonded to the base sheet 305 with an adhesive force weaker than the adhesive force with which the base sheet 305 is bonded to the article. And when a force that works so as to strip off the RFID tag 300 from the article is applied, the cover sheet comes off from the base sheet 305. The concealing part 304 of the cover sheet 306 is strongly bonded to the breakdown pattern 303, and when the cover sheet 306 comes off from the base sheet 305, the breakdown pattern 303 comes off from the base sheet 305 while being stuck to the concealing part 304. [0064] FIGS. 9(A) and 9(B) are each a drawing of an RFID tag of the third embodiment of the invention in a condition after stripping. [0065] As shown in FIG. 9(A), the antenna pattern 302 and the IC chip 301 remain on the base sheet 305 after stripping, and the breakdown pattern 303 is caused to come off as shown in FIG. 9(B). For this reason, the IC chip 301 detects a substantial increase in the resistance value, confirms an insulating condition and can inform external equipment of the insulating condition. Even when a person who attempts fraudulent uses has formed a repaired path 310 by use of copper tape or solder, the IC chip 301 readily detects the repair and can inform the repair to external equipment, because the resistance value Rr of the repaired path 310 is much smaller than the resistance value Ri of the original breakdown pattern 303. The breakdown pattern 303 is long and has a complicated shape. In addition, because the breakdown pattern 303 is formed from a silver paste and adheres to the concealing part having the color of silver, the visibility is low. For this reason, a person who attempts fraudulent uses cannot reproduce the essential resistance value Ri and positive prevention of fraudulent uses is realized. A form in which the breakdown pattern 303 is made of ITO and a form in which the breakdown pattern 303 is formed in a fine pattern of ITO are also useful. [0066] Incidentally, although in the above descriptions, a cover sheet made of PET and a base sheet made of PET are mentioned as an example of the cover and base of the invention, the cover and base of the invention may be formed from materials other than PET and may have a shape other than the shape of a sheet. [0067] Also, although in the above descriptions, a copper antenna pattern is mentioned as an example of the first pattern of the invention, the first pattern of the invention may be formed from a silver paste. [0068] Furthermore, although in the above descriptions, examples in which the base sheet is bonded to an article are shown, the cover side of the RFID tag according to the invention may be bonded to the article. Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS6050622 *Dec 24, 1996Apr 18, 2000Gustafson; AkeSafety sealing deviceUS6421013 *Sep 28, 2000Jul 16, 2002Amerasia International Technology, Inc.Tamper-resistant wireless article including an antennaUS20030075608 *Mar 21, 2001Apr 24, 2003Atherton Peter STamper indicating radio frequency identification labelUS20040066296 *Nov 15, 2001Apr 8, 2004Atherton Peter S.Tamper indicating radio frequency identification label with tracking capability* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7614545 *Sep 19, 2005Nov 10, 2009Novo Nordisk A/SElectronic marking of a medication cartridgeUS7880614 *Sep 26, 2007Feb 1, 2011Avery Dennison CorporationRFID interposer with impedance matchingUS7922096Apr 12, 2011Novo Nordisk A/SSupport for a cartridge for transferring an electronically readable item of information from the cartridge to an electronic circuitUS8049519Apr 25, 2007Nov 1, 2011Novo Nordisk A/SContact free absolute position determination of a moving element in a medication delivery deviceUS8197449May 8, 2006Jun 12, 2012Novo Nordisk A/SInjection device comprising an optical sensorUS8348904Mar 14, 2008Jan 8, 2013Novo Nordisk A/SMedical delivery system having container recognition and container for use with the medical delivery systemUS8608079Mar 20, 2007Dec 17, 2013Novo Nordisk A/SContact free reading of cartridge identification codesUS8638108Sep 22, 2006Jan 28, 2014Novo Nordisk A/SDevice and method for contact free absolute position determinationUS8771238May 1, 2012Jul 8, 2014Novo Nordisk A/SInjection device comprising an optical sensorUS8994382Apr 12, 2007Mar 31, 2015Novo Nordisk A/SAbsolute position determination of movably mounted member in medication delivery deviceUS9186465Nov 5, 2009Nov 17, 2015Novo Nordisk A/SElectronically assisted drug delivery deviceUS20060178637 *Dec 8, 2005Aug 10, 2006Michael EilersenSupport for a cartridge for transferring an electronically readable item of information from the cartridge to an electronic circuitUS20060243804 *Apr 3, 2006Nov 2, 2006Novo Nordisk A/SContainer comprising code information elementsUS20090079568 *Sep 26, 2007Mar 26, 2009Forster Ian JRfid interposer with impedance matchingUS20090088701 *Mar 20, 2007Apr 2, 2009Novo Nordisk A/SContact Free Reading of Cartridge Identification CodesUS20090096467 *Apr 25, 2007Apr 16, 2009Novo Nordisk A/SContact Free Absolute Position Determination of a Moving Element in a Medication Delivery DeviceUS20100012735 *Jan 21, 2010Novo Nordisk A/SSupport for a Cartridge for Transferring an Electronically Readable Item of Information from the Cartridge to an Electronic CircuitUS20100106100 *Mar 14, 2008Apr 29, 2010Novo Nordisk A/SMedical delivery system having container recognition and container for use with the medical delivery systemUS20100194537 *Jun 9, 2008Aug 5, 2010Novo Nordisk A/SContact free reading of reservoir identification codesUS20110002107 *Oct 10, 2008Jan 6, 2011Junsuke TanakaTransponder and BookletUS20110063078 *Mar 10, 2010Mar 17, 2011Toshiba Tec Kabushiki KaishaCommunication system, operation confirmation processing method and operation confirmation processing program for communication system* Cited by examinerClassifications U.S. Classification340/572.4, 257/E23.064International ClassificationG08B13/14Cooperative ClassificationH01L2924/00014, H01L2224/32225, H01L2224/73204, H01L2224/16225, G06K19/0739, G06K19/073, H01L23/573, H01L23/49855European ClassificationH01L23/57A, H01L23/498K, G06K19/073A8A2, G06K19/073Legal EventsDateCodeEventDescriptionFeb 23, 2005ASAssignmentOwner name: FUJITSU FRONTECH LIMITED, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BABA, SHUNJI;ISHIKAWA, NAOKI;KIRA, HIDEHIKO;AND OTHERS;REEL/FRAME:016322/0796;SIGNING DATES FROM 20050203 TO 20050208Owner name: FUJITSU LIMITED, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BABA, SHUNJI;ISHIKAWA, NAOKI;KIRA, HIDEHIKO;AND OTHERS;REEL/FRAME:016322/0796;SIGNING DATES FROM 20050203 TO 20050208May 2, 2011REMIMaintenance fee reminder mailedSep 25, 2011LAPSLapse for failure to pay maintenance feesNov 15, 2011FPExpired due to failure to pay maintenance feeEffective date: 20110925RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services