Inventor · disambiguated record
Kimitoshi Yamaguchi
Also filed as: YAMAGUCHI KIMITOSHI
41 granted patents·4 pending applications·655 citations·filing 1984–2012
98Inventor score
Top patents by PatentIndex Score
45 records- 0196US5288577ADry-type developerRICOH KK·Filed 1992·Granted Feb 22, 1994·83 cites·15 claims
- 0296US4562136ATwo-component dry-type developerRICOH KK·Filed 1984·Granted Dec 31, 1985·45 cites·14 claims
- 0395US6472118B1Carrier for developer for electrophotographyRICOH KK·Filed 2000·Granted Oct 29, 2002·43 cites·14 claims
- 0494US8211610B2Carrier for use in developer developing electrostatic image, developer using the carrier, and image forming method and apparatus and process cartridge using the developerYAMAGUCHI KIMITOSHI·Filed 2010·Granted Jul 3, 2012·15 cites·12 claims
- 0594US5079123ADry-type toner for electrophotography with carnauba waxRICOH KK·Filed 1990·Granted Jan 7, 1992·55 cites·7 claims
- 0693US4950573AToner for developing latent electrostatic imagesRICOH KK·Filed 1987·Granted Aug 21, 1990·45 cites·5 claims
- 0793US4590141ACarrier particles for use in a two-component dry-type developer for developing latent electrostatic imagesRICOH KK·Filed 1984·Granted May 20, 1986·46 cites·13 claims
- 0892US6743558B2Carrier for electrophotographic developerRICOH KK·Filed 2002·Granted Jun 1, 2004·41 cites·22 claims
- 0990US6489073B2Method and device for developing electrostatic latent imagesRICOH KK·Filed 2001·Granted Dec 3, 2002·34 cites·18 claims
- 1089US6739534B2Carrier for developer for electrophotographyRICOH KK·Filed 2003·Granted May 25, 2004·24 cites·7 claims
- 1189US6599672B2Carrier for developer for electrophotographyRICOH KK·Filed 2002·Granted Jul 29, 2003·24 cites·4 claims
- 1288US7468233B2Developer for use in electrophotography, image forming method and process cartridgeRICOH KK·Filed 2005·Granted Dec 23, 2008·10 cites·20 claims
- 1385US7192679B2Carrier for electrophotographic developerRICOH KK·Filed 2004·Granted Mar 20, 2007·24 cites·22 claims
- 1485US6696213B2Method of developing a latent electrostatic imageRICOH KK·Filed 2002·Granted Feb 24, 2004·24 cites·10 claims
- 1585US4990425AToner for developing latent electrostatic imagesRICOH KK·Filed 1989·Granted Feb 5, 1991·20 cites·12 claims
- 1682US8663892B2Latent electrostatic image developing carrier, process cartridge and image forming apparatusYAGUCHI SHIGENORI·Filed 2012·Granted Mar 4, 2014·3 cites·13 claims
- 1780US8475989B2Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and process cartridge using the developerTAKAHASHI YUTAKA·Filed 2010·Granted Jul 2, 2013·3 cites·15 claims
- 1877US6735409B2Process for developing, image-forming apparatus, and image-forming process cartridgeRICOH KK·Filed 2003·Granted May 11, 2004·16 cites·17 claims
- 1976US8431312B2Carrier, developer, and image forming methodMASUDA MINORU·Filed 2009·Granted Apr 30, 2013·4 cites·13 claims
- 2075US8652738B2Contact developing method, image forming apparatus, and process cartridgeYAMAGUCHI KIMITOSHI·Filed 2011·Granted Feb 18, 2014·2 cites·10 claims
- 2175US8518626B2Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and apparatus and process cartridge using the developerYAMADA SAORI·Filed 2011·Granted Aug 27, 2013·2 cites·18 claims
- 2275US8512929B2Latent electrostatic image developing carrier, two-component developer and image forming methodIWATSUKI HITOSHI·Filed 2010·Granted Aug 20, 2013·2 cites·20 claims
- 2373US5102766AToner for developing latent electrostatic imagesRICOH KK·Filed 1990·Granted Apr 7, 1992·21 cites·14 claims
- 2470US8637218B2Carrier for developing electrostatic latent image and developerSAKATA KOICHI·Filed 2012·Granted Jan 28, 2014·1 cites·11 claims
- 2570US4670368AMagnetic developer for developing latent electrostatic imagesRICOH KK·Filed 1986·Granted Jun 2, 1987·16 cites·10 claims
- 2669US8512928B2Carrier for developing electrostatic latent image, and two-component developer, supplemental developer, image forming apparatus, process cartridge, and image forming method using the carrierKISHIDA HIROYUKI·Filed 2011·Granted Aug 20, 2013·1 cites·18 claims
- 2769US6939654B2Carrier and developer for developing latent electrostatic imagesRICOH KK·Filed 2003·Granted Sep 6, 2005·10 cites·29 claims
- 2869US5085965ANegative toner for developing latent electrostatic imagesRICOH KK·Filed 1990·Granted Feb 4, 1992·17 cites·29 claims
- 2968US8652735B2Carrier, developer, method of manufacturing carrier, developer container, image forming method, process cartridge, image forming apparatus, and supplemental developerSAKATA KOICHI·Filed 2011·Granted Feb 18, 2014·1 cites·14 claims
- 3068US8067141B2Electrographic carrier, developer, developing method, image forming apparatus, and process cartridgeYAMAGUCHI KIMITOSHI·Filed 2007·Granted Nov 29, 2011·3 cites·8 claims
- 3167US8481239B2Carrier for two-component developerNAKAJIMA HISASHI·Filed 2010·Granted Jul 9, 2013·1 cites·18 claims
- 3267US7763410B2Electrophotographic developing carrier, associated apparatus and methodology of classification and applicationRICOH KK·Filed 2004·Granted Jul 27, 2010·8 cites·7 claims
- 3365US7320852B2Carrier for developer for developing electrostatic latent image, developer using same and image forming method using sameRICOH KK·Filed 2003·Granted Jan 22, 2008·9 cites·18 claims
- 3457US8039189B2Electrophotographic developer and carrier therefor, core material particle for carrier for electrophotographic developer and production method thereof and image forming methodRICOH CO LTD·Filed 2007·Granted Oct 18, 2011·1 cites·4 claims
- 3555US8728698B2Carrier, developer, image forming method and process cartridgeNAGAYAMA MASASHI·Filed 2007·Granted May 20, 2014·1 cites·26 claims
- 3653US9029061B2Carrier, developer using the carrier, and developing device, image forming method, image forming apparatus and process cartridge using the developerSAKATA KOICHI·Filed 2010·Granted May 12, 2015·0 cites·7 claims
- 3751US8778587B2Carrier for electrostatic latent image developer, electrostatic latent image developer formed of carrier and toner, and process cartridge using the developerYAMAGUCHI KIMITOSHI·Filed 2012·Granted Jul 15, 2014·0 cites·9 claims
- 3851US8247150B2Carrier for developing electrostatic latent image, two-component developer, supplemental developer, process cartridge, and image forming methodIWATSUKI HITOSHI·Filed 2009·Granted Aug 21, 2012·0 cites·18 claims
- 3949US8257896B2CarrierMASUDA MINORU·Filed 2010·Granted Sep 4, 2012·0 cites·13 claims
- 4047US8679719B2Carrier, developer and electrophotographic developing method and image forming methodYAMAGUCHI KIMITOSHI·Filed 2008·Granted Mar 25, 2014·0 cites·10 claims
- 4147US2008073252A1Electrophotographic developing carrier, associated apparatus and methodology of classification and applicationYAMAGUCHI KIMITOSHI·Filed 2007·Application pending·0 cites
- 4241US2009041510A1Image forming apparatusIMAHASHI NAOKI·Filed 2008·Application pending·0 cites
- 4340US8877418B2Developing method and image forming methodNAKAJIMA HISASHI·Filed 2011·Granted Nov 4, 2014·0 cites·9 claims
- 4438US2007048652A1Carrier and developerIMAHASHI NAOKI·Filed 2006·Application pending·0 cites
- 4537US2006210905A1Carrier for developer developing electrostatic image, developer including the carrier, and image forming method and process cartridge using the developerIMAHASHI NAOKI·Filed 2006·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Kimitoshi Yamaguchi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →