Source: http://www.google.com/patents/US7172130?dq=6,907,387
Timestamp: 2017-01-16 15:16:31
Document Index: 323294442

Matched Legal Cases: ['art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4']

Patent US7172130 - Electronic device, rubber product, and methods for manufacturing the same - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsThe present invention aims to improve the durability of an RFID chip inlet. A module including an RFID chip amounted to an antenna is covered with polyimide film with an adhesive layer to make up an RFID inlet. The outer surface of the RFID inlet is then covered with the surface processed to increase...http://www.google.com/patents/US7172130?utm_source=gb-gplus-sharePatent US7172130 - Electronic device, rubber product, and methods for manufacturing the sameAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7172130 B2Publication typeGrantApplication numberUS 10/960,074Publication dateFeb 6, 2007Filing dateOct 8, 2004Priority dateOct 8, 2003Fee statusPaidAlso published asCN1606037A, CN100343871C, DE602004030082D1, EP1522957A1, EP1522957B1, US20050101060Publication number10960074, 960074, US 7172130 B2, US 7172130B2, US-B2-7172130, US7172130 B2, US7172130B2InventorsShigeharu Tsunoda, Hiroshi Hozoji, Madoka MinagawaOriginal AssigneeHitachi, Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (51), Referenced by (8), Classifications (19), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetElectronic device, rubber product, and methods for manufacturing the same
Usually, a process of vulcanizing unvulcanized rubber involves heating the unvulcanized rubber to a temperature of 100° C. to 300° C. and then cooling the heated rubber down to room temperature. The process causes the rubber to largely shrink, because the linear thermal expansion coefficient of rubber is very large. Therefore, the vulcanization process tends to cause a bonding fracture between an RFID chip and an antenna, as well as antenna deformation.
The antenna 6 is made of a flexible organic film that is coated with a metallic film. The organic film material may be, for example, a polyimide resin or a polyethylene terephthalate resin. The metallic film material may be, for example, an alloy of copper and tin, or aluminum. The polyimide film sheets 7, each having an adhesive layer, have a base material thickness of 0.01 to 0.1 mm. The thickness of the adhesive layer is adjusted as required depending on the thickness of the RFID chip 5 to be used. The adhesive material is preferably a thermosetting resin, such as a silicone resin, an epoxy resin or a polyimide resin, which may be processed for increased flexibility. Shown on the right in FIG. 5A is an enlarged cross-sectional view, taken along line A—A, of the RFID inlet 11 having a laminated structure.
FIG. 5B shows the RFID inlet 11 inserted in a base part 4 having a cylindrical shape. The inner surface 12 of the base part 4 has been processed to have an increased surface lubricity. Shown on the right in FIG. 5B is an enlarged cross-sectional view taken along line B—B.
Shown on the right in FIG. 5C is an enlarged cross-sectional view taken along line C—C. With the base part 4 flattened, there are gaps (spaces) 13 generated between the main surfaces and side surfaces of the antenna 6 and the inner surface of the base part 4, which is processed to have an increased surface lubricity. The gaps 13 give some freedom of movement to the RFID inlet 11, contributing toward generating a stress relief effect when the RFID inlet is embedded in the rubber sheet. In the present embodiment of the invention, although the base part 4 has a tubular shape with open ends, it goes without saying that the base part 4 may have a sack-like shape with one end closed.
A wide range of materials which do not degrade when subjected to a rubber vulcanizing temperature of about 100° C. to 300° C. may be used as the material for the base part 4. The material may be, for example, paper, woven fabric or nonwoven fabric, such as bond paper or nonwoven paper. To increase the surface lubricity of the base part 4, it may be coated with a silicone resin or a tetrafluoride ethylene resin, or, it may be impregnated with wax or rosin. Or, it may be made of a material, such as a silicone resin or a tetrafluoride ethylene resin, which does not adhere to rubber. To be processed to have an increased surface lubricity is not limited to one side of the base part 4. The base part 4 may have both of its sides processed to have an increased surface lubricity.
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LtdRfid tag housing structure, rfid tag installation structure and rfid tag communication methodEP1522957A1Sep 27, 2004Apr 13, 2005Hitachi, Ltd.Electronic device, rubber product, and methods for manufacturing the sameJP2002272589A Title not availableJPH07223413A Title not availableJPH11345299A Title not available* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7430906 *Dec 13, 2005Oct 7, 2008Sumitomo Rubber Industries, Ltd.Pneumatic tire having accommodation tool of electronic componentUS8235825Aug 14, 2007Aug 7, 2012John B. FrenchSmart card holder for automated gaming system and gaming cardsUS8535136Jun 29, 2012Sep 17, 2013John B. FrenchRead and write playing careUS8783321 *Jun 19, 2009Jul 22, 2014Michelin Recherche Et Technique S.A.Plant for manufacturing a rubber-coated electronic componentUS20060123899 *Dec 13, 2005Jun 15, 2006Sumitomo Rubber Industries, Ltd.Pneumatic tire having accommodation tool of electronic componentUS20090020613 *Jan 7, 2008Jan 22, 2009Yuen Foong Yu Paper Mfg Co.Thin flexible smart card and packaging method thereofUS20090048026 *Aug 14, 2007Feb 19, 2009French John BSmart card holder for automated gaming system and gaming cardsUS20110284155 *Jun 19, 2009Nov 24, 2011Michelin Recherche Et Technique S.AMethod and Plant for Manufacturing a Rubber-Coated Electronic Component* Cited by examinerClassifications U.S. Classification235/492, 438/127, 264/272.12, 340/572.8, 264/272.15International ClassificationG06K19/07, G06K19/077, G08B13/14, H05B3/30, G06K19/06, H01L21/44, H01L25/00, G06K19/00Cooperative ClassificationG06K19/07728, G06K19/07749, G06K19/07764European ClassificationG06K19/077T3E, G06K19/077E5, G06K19/077TLegal EventsDateCodeEventDescriptionDec 30, 2004ASAssignmentOwner name: HITACHI, LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SHIGEHARU, TSUNODA;HIROSHI, HOZOJI;MINAGAWA, MADOKA;REEL/FRAME:016117/0717;SIGNING DATES FROM 20041004 TO 20041019Jul 29, 2005ASAssignmentOwner name: HITACHI, LTD., JAPANFree format text: CORRECTED ASSIGNMENT 1ST AND 2ND INVENTORS NAMES INCORRECTLY REVERSED DUE TO ERROR ON THE PART OF THE APPLICANT.;ASSIGNORS:TSUNODA, SHIGEHARU;HOZOJI, HIROSHI;MINAGAWA, MADOKA;REEL/FRAME:016831/0228;SIGNING DATES FROM 20041004 TO 20041019Jul 23, 2010FPAYFee paymentYear of fee payment: 4Jul 9, 2014FPAYFee paymentYear of fee payment: 8RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services