Inventor · disambiguated record
Takao Oosawa
Also filed as: OOSAWA TAKAO
8 granted patents·435 citations·filing 1981–2003
89Inventor score
Top patents by PatentIndex Score
8 records- 0189US6000607AIC card reader/writer and method of operation thereofHITACHI LTD·Filed 1996·Granted Dec 14, 1999·110 cites·14 claims
- 0278US5952639ADepositing, withdrawal, balance check, exchange and transfer of electronic money in automatic cash handling machineHITACHI LTD·Filed 1996·Granted Sep 14, 1999·252 cites·18 claims
- 0378USD271815SCombined electric washer and clothes dryerHITACHI LTD·Filed 1981·Granted Dec 13, 1983·17 cites·1 claims
- 0454USD479252SCutting machineHITACHI KOKI KK·Filed 2002·Granted Sep 2, 2003·8 cites·1 claims
- 0543US6016957AIC card reader/writer and method of operation thereofHITACHI LTD·Filed 1998·Granted Jan 25, 2000·14 cites·16 claims
- 0640US7061705B2Signal processing apparatus and method, record medium, and programSONY CORP·Filed 2003·Granted Jun 13, 2006·0 cites·4 claims
- 0739US6339638B1Telephone used for electronic money card transaction and method of operation of the sameHITACHI LTD·Filed 1999·Granted Jan 15, 2002·28 cites·3 claims
- 0833US6042002AHolding apparatus for a plurality of IC cards facilitating transactions of electronic money among the IC cardsHITACHI LTD·Filed 1996·Granted Mar 28, 2000·6 cites·41 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →