Inventor · disambiguated record
Kazunari Hirakawa
Also filed as: HIRAKAWA KAZUNARI
2 granted patents·1 pending application·9 citations·filing 1991–2006
54Inventor score
Top patents by PatentIndex Score
3 records- 0160US7949535B2User authentication system, fraudulent user determination method and computer program productFUJITSU LTD·Filed 2006·Granted May 24, 2011·4 cites·6 claims
- 0251US5208399AMethod for producing allyl chlorideTOSOH CORP·Filed 1991·Granted May 4, 1993·5 cites·10 claims
- 0336US2007088540A1Voice data processing method and deviceFUJITSU LTD·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →