Inventor · disambiguated record
Hirohisa Ohtsuka
Also filed as: OHTSUKA HIROHISA
4 granted patents·137 citations·filing 1994–1995
81Inventor score
Technology areasG03G
Files withRICOH KK4
Top patents by PatentIndex Score
4 records- 0191US5572293AMethod of and system for cleaning a charge inducing memberRICOH KK·Filed 1994·Granted Nov 5, 1996·42 cites·53 claims
- 0287US5526100AImage recording apparatus having a toner quantity control unitRICOH KK·Filed 1994·Granted Jun 11, 1996·41 cites·7 claims
- 0378US5610691AImage forming apparatus having a contact charging member and a cleaning memberRICOH KK·Filed 1995·Granted Mar 11, 1997·29 cites·7 claims
- 0472US5629755AImage forming apparatusRICOH KK·Filed 1995·Granted May 13, 1997·25 cites·32 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →