Inventor · disambiguated record
Takehiro Ohkawa
Also filed as: OHKAWA TAKEHIRO
6 granted patents·2 pending applications·240 citations·filing 1995–2004
86Inventor score
Top patents by PatentIndex Score
8 records- 0192US6972662B1RFID (radio frequency identification) and IC cardRENESAS TECH CORP·Filed 2000·Granted Dec 6, 2005·118 cites·12 claims
- 0291US5999409AContactless IC cardHITACHI LTD·Filed 1998·Granted Dec 7, 1999·57 cites·11 claims
- 0376US6373708B1Contactless IC cardHITACHI LTD·Filed 1999·Granted Apr 16, 2002·24 cites·18 claims
- 0469US7212124B2Portable information deviceHITACHI LTD·Filed 2003·Granted May 1, 2007·14 cites·15 claims
- 0561US5594680ANoise reduced contactless parallel data transfer device and method thereofHITACHI LTD·Filed 1995·Granted Jan 14, 1997·24 cites·23 claims
- 0641US2005122211A1RfidHITACHI LTD·Filed 2004·Application pending·0 cites
- 0741US2004233043A1Communication systemHITACHI LTD·Filed 2003·Application pending·0 cites
- 0835US6121623AParallel radiation detectorHITACHI LTD·Filed 1998·Granted Sep 19, 2000·3 cites·15 claims
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