Inventor · disambiguated record
Shigeyuki Kawana
Also filed as: KAWANA SHIGEYUKI
7 granted patents·425 citations·filing 1985–1988
89Inventor score
Files withCASIO COMPUTER CO LTD7
Top patents by PatentIndex Score
7 records- 0179US4746788AIdentification system for authenticating both IC card and terminalCASIO COMPUTER CO LTD·Filed 1986·Granted May 24, 1988·104 cites·6 claims
- 0275US4845351AIC cardCASIO COMPUTER CO LTD·Filed 1986·Granted Jul 4, 1989·41 cites·5 claims
- 0374US4794236AIC card systemCASIO COMPUTER CO LTD·Filed 1986·Granted Dec 27, 1988·38 cites·6 claims
- 0471US4697072AIdentification card and authentication system thereforCASIO COMPUTER CO LTD·Filed 1985·Granted Sep 29, 1987·165 cites·15 claims
- 0558US4734569AIC cardCASIO COMPUTER CO LTD·Filed 1986·Granted Mar 29, 1988·26 cites·8 claims
- 0655US4780602AIC cardCASIO COMPUTER CO LTD·Filed 1986·Granted Oct 25, 1988·22 cites·7 claims
- 0738US5010237AIC card system for preventing unauthorized data alterationCASIO COMPUTER CO LTD·Filed 1988·Granted Apr 23, 1991·29 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →