Inventor · disambiguated record
Ryohichi Kitajima
Also filed as: KITAJIMA RYOHICHI
10 granted patents·256 citations·filing 1998–2011
91Inventor score
Top patents by PatentIndex Score
10 records- 0197US6641964B2Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2001·Granted Nov 4, 2003·80 cites·24 claims
- 0292US6844124B2Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2003·Granted Jan 18, 2005·31 cites·9 claims
- 0391US7177583B2Image forming apparatus and copierRICOH KK·Filed 2005·Granted Feb 13, 2007·10 cites·9 claims
- 0491US6824939B2Electrophotographic image forming method and apparatusRICOH KK·Filed 2002·Granted Nov 30, 2004·38 cites·22 claims
- 0587US6853834B2Image forming apparatus and copierRICOH KK·Filed 2003·Granted Feb 8, 2005·22 cites·9 claims
- 0682US6853823B2Electrophotographic photoreceptor and image forming apparatus using the photoreceptorRICOH KK·Filed 2003·Granted Feb 8, 2005·21 cites·10 claims
- 0781US8606150B2Toner bearer, and developing device and image forming apparatus using sameYAMASHITA YASUYUKI·Filed 2011·Granted Dec 10, 2013·3 cites·8 claims
- 0881US7031650B2Image forming apparatus and copierRICOH KK·Filed 2004·Granted Apr 18, 2006·14 cites·8 claims
- 0979US6319878B1Thermosensitive recording mediumRICOH KK·Filed 1998·Granted Nov 20, 2001·31 cites·20 claims
- 1057US7354686B2Electrophotographic photoconductor and process for manufacturing the same, and image forming apparatus and process cartridge containing the sameRICOH KK·Filed 2004·Granted Apr 8, 2008·6 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →