Inventor · disambiguated record
Kouhei Katayama
Also filed as: KATAYAMA KOUHEI
4 granted patents·33 citations·filing 1995–2007
70Inventor score
Technology areasG03G
Top patents by PatentIndex Score
4 records- 0184US7235337B2Toner for electrostatic image developmentKAO CORP·Filed 2004·Granted Jun 26, 2007·24 cites·15 claims
- 0242US5579091ADeveloping unit for electro-photographic apparatusHITACHI KOKI KK·Filed 1995·Granted Nov 26, 1996·8 cites·9 claims
- 0339US8227160B2Toner for electrophotographyHIDAKA YASUHIRO·Filed 2007·Granted Jul 24, 2012·0 cites·10 claims
- 0436US6377766B1Electrophotographic apparatus having a printing density controller for dropout and non-dropout colorHITACHI KOKI KK·Filed 2000·Granted Apr 23, 2002·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →