Inventor · disambiguated record
Keiichi Iiyama
Also filed as: IIYAMA KEIICHI
5 granted patents·208 citations·filing 1996–2002
83Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD5
Top patents by PatentIndex Score
5 records- 0184US6489883B1Non-contact data carrier systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Dec 3, 2002·107 cites·2 claims
- 0273US6215272B1Fuel cell deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Apr 10, 2001·67 cites·6 claims
- 0358US6772953B2Contactless data carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 10, 2004·10 cites·4 claims
- 0442US5949826AData transmission and reception systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Sep 7, 1999·20 cites·6 claims
- 0540US6894885B2Reader/writer and analog switching circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 17, 2005·4 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →