Inventor · disambiguated record

Yoshiko Yamaoka

Also filed as: YAMAOKA YOSHIKO

3 granted patents·34 citations·filing 1995–1996

70Inventor score

Technology areasC09D

Files withSAKURA COLOR PROD CORP3

Top patents by PatentIndex Score

3 records

0159US5683500AAqueous ink compositions and methods for their productionSAKURA COLOR PROD CORP·Filed 1995·Granted Nov 4, 1997·20 cites·20 claims
0243US5741354AAqueous ink composition for ball-point penSAKURA COLOR PROD CORP·Filed 1996·Granted Apr 21, 1998·11 cites·8 claims
0330US5522920AAqueous ink composition for ball-point penSAKURA COLOR PROD CORP·Filed 1995·Granted Jun 4, 1996·3 cites·8 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →