Inventor · disambiguated record
Masahito Matsunawa
Also filed as: MATSUNAWA MASAHITO
3 granted patents·1 pending application·163 citations·filing 1998–2008
72Inventor score
Technology areasG06Q
Files withHITACHI LTD3
Top patents by PatentIndex Score
4 records- 0173US7428511B2Electronic business transaction systemHITACHI LTD·Filed 2004·Granted Sep 23, 2008·6 cites·14 claims
- 0273US6049787AElectronic business transaction system with notarization database and means for conducting a notarization procedureHITACHI LTD·Filed 1998·Granted Apr 11, 2000·157 cites·12 claims
- 0363US7590597B2Electronic business transaction systemHITACHI LTD·Filed 2008·Granted Sep 15, 2009·0 cites·6 claims
- 0458US2002095381A1Electronic business transaction systemFiled 2002·Application pending·0 cites
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