Inventor · disambiguated record
Hirohisa Otsuka
Also filed as: OTSUKA HIROHISA
4 granted patents·440 citations·filing 1988–1995
82Inventor score
Files withRICOH KK4
Top patents by PatentIndex Score
4 records- 0198US5585896AImage forming apparatus with a contact member contacting an image carrierRICOH KK·Filed 1994·Granted Dec 17, 1996·311 cites·16 claims
- 0293US5638158AImage formation apparatusRICOH KK·Filed 1995·Granted Jun 10, 1997·85 cites·11 claims
- 0379US4956671AWire cleaning device for a corona discharge type chargerRICOH KK·Filed 1988·Granted Sep 11, 1990·24 cites·4 claims
- 0456US4921236ARecycling automatic document feederRICOH KK·Filed 1989·Granted May 1, 1990·20 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →