Inventor · disambiguated record

Koichi Touma

Also filed as: TOUMA KOICHI

2 granted patents·12 citations·filing 1992–1995

56Inventor score

Technology areasB41J

Files withCANON KK2

Top patents by PatentIndex Score

2 records

0141US5992980ASubstrate for ink jet head, ink jet head provided with said substrate and ink jet apparatus having such ink jet headCANON KK·Filed 1995·Granted Nov 30, 1999·7 cites·33 claims
0240US5477252ASubstrate for ink jet head, ink jet head provided with said substrate and ink jet apparatus having such ink jet headCANON KK·Filed 1992·Granted Dec 19, 1995·5 cites·33 claims

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