Inventor · disambiguated record
Ryoichi Kitajima
Also filed as: KITAJIMA RYOICHI
6 granted patents·1 pending application·42 citations·filing 2004–2011
79Inventor score
Top patents by PatentIndex Score
7 records- 0194US7341814B2Electrophotographic photoconductor, preparation method thereof, electrophotographic apparatus and process cartridgeRICOH KK·Filed 2005·Granted Mar 11, 2008·19 cites·26 claims
- 0274US7315722B2Image forming apparatus and image forming methodRICOH KK·Filed 2004·Granted Jan 1, 2008·17 cites·11 claims
- 0366US7482104B2Toner, developer, toner container and latent electrostatic image carrier, and process cartridge, image forming method, and image forming apparatus using the sameRICOH KK·Filed 2008·Granted Jan 27, 2009·2 cites·14 claims
- 0462US8369755B2Developing device and image forming apparatus using the developing deviceRICOH CO LTD·Filed 2010·Granted Feb 5, 2013·2 cites·4 claims
- 0545US7386256B2Toner, developer, toner container and latent electrostatic image carrier, and process cartridge, image forming method, and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Jun 10, 2008·2 cites·11 claims
- 0643US8396399B2Toner bearing member, developing device, image forming apparatus, and image forming methodYAMASHITA YASUYUKI·Filed 2010·Granted Mar 12, 2013·0 cites·6 claims
- 0734US2011176835A1Toner bearing member, development device, and image forming apparatusYAMASHITA YASUYUKI·Filed 2011·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →