Inventor · disambiguated record
Yuichi Kikuchi
Also filed as: KIKUCHI YUICHI
42 granted patents·18 pending applications·736 citations·filing 1988–2025
98Inventor score
Top patents by PatentIndex Score
60 records- 0199US11392050B2Process cartridge and electrophotographic apparatusCANON KK·Filed 2020·Granted Jul 19, 2022·14 cites·8 claims
- 0299US11366402B2Process cartridge and electrophotographic apparatus using the sameCANON KK·Filed 2020·Granted Jun 21, 2022·18 cites·12 claims
- 0398US11347156B2Electro-conductive member for electrophotography, process cartridge for electrophotography, and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted May 31, 2022·8 cites·11 claims
- 0498US11137716B2Process cartridge and electrophotographic apparatusCANON KK·Filed 2020·Granted Oct 5, 2021·22 cites·11 claims
- 0598US11112748B2Developing member, process cartridge and electrophotographic apparatusCANON KK·Filed 2020·Granted Sep 7, 2021·9 cites·10 claims
- 0698US11112719B2Process cartridge and electrophotographic apparatus capable of suppressing lateral running while maintaining satisfactory potential functionCANON KK·Filed 2020·Granted Sep 7, 2021·20 cites·10 claims
- 0798US10845724B2Electro-conductive member, process cartridge and image forming apparatusCANON KK·Filed 2020·Granted Nov 24, 2020·11 cites·20 claims
- 0898US10416588B2Charging member, process cartridge, electrophotographic image forming apparatus, and method for manufacturing charging memberCANON KK·Filed 2017·Granted Sep 17, 2019·29 cites·11 claims
- 0998US10280148B2Electroconductive member for electrophotography and quaternary ammonium saltCANON KK·Filed 2015·Granted May 7, 2019·28 cites·15 claims
- 1098US10018927B2Electroconductive member for electrophotography, process cartridge and electrophotographic apparatusCANON KK·Filed 2015·Granted Jul 10, 2018·29 cites·10 claims
- 1198US9958802B2Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatusCANON KK·Filed 2016·Granted May 1, 2018·30 cites·9 claims
- 1298US9547250B2Electroconductive member for electrophotography, process cartridge and electrophotographic apparatusCANON KK·Filed 2015·Granted Jan 17, 2017·37 cites·13 claims
- 1398US9541854B2Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted Jan 10, 2017·35 cites·9 claims
- 1498US9146482B2Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted Sep 29, 2015·37 cites·7 claims
- 1598US9128403B2Electrophotographic electrically conductive memberCANON KK·Filed 2014·Granted Sep 8, 2015·34 cites·7 claims
- 1698US8852743B2Electro-conductive member for electrophotography, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Oct 7, 2014·40 cites·10 claims
- 1798US8771818B2Electrically conducting member for electrophotography, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Jul 8, 2014·39 cites·7 claims
- 1898US8628854B2Electro-conductive member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Jan 14, 2014·40 cites·11 claims
- 1997US11586121B2Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming deviceCANON KK·Filed 2022·Granted Feb 21, 2023·4 cites·16 claims
- 2097US11385559B2Electroconductive member, process cartridge, and image forming apparatusCANON KK·Filed 2020·Granted Jul 12, 2022·3 cites·14 claims
- 2197US11175602B2Electroconductive member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Nov 16, 2021·10 cites·14 claims
- 2297US11169454B2Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Nov 9, 2021·11 cites·16 claims
- 2397US10678158B2Electro-conductive member for electrophotography, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2017·Granted Jun 9, 2020·24 cites·22 claims
- 2497US10678154B2Electrophotographic electroconductive member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2017·Granted Jun 9, 2020·24 cites·13 claims
- 2597US9551949B2Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted Jan 24, 2017·36 cites·8 claims
- 2696US11340553B2Process cartridge and electrophotographic apparatusCANON KK·Filed 2020·Granted May 24, 2022·18 cites·11 claims
- 2796US9651888B2Electroconductive member with a surface layer including a porous body having a continuous open poreCANON KK·Filed 2014·Granted May 16, 2017·33 cites·10 claims
- 2896US8668987B2Electrophotographic electrically conductive memberYAMAUCHI KAZUHIRO·Filed 2012·Granted Mar 11, 2014·35 cites·5 claims
- 2995US11640122B2Electroconductive member, process cartridge, and image forming apparatusCANON KK·Filed 2022·Granted May 2, 2023·3 cites·18 claims
- 3095US9086643B2Ionic electro-conductive resin and electro-conductive member for electrophotographyKIKUCHI YUICHI·Filed 2012·Granted Jul 21, 2015·38 cites·9 claims
- 3194US11397388B2Process for producing an electrophotographic electroconductive memberCANON KK·Filed 2021·Granted Jul 26, 2022·3 cites·17 claims
- 3293US11971683B2Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2021·Granted Apr 30, 2024·2 cites·12 claims
- 3387US12032331B2Electroconductive member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2023·Granted Jul 9, 2024·2 cites·20 claims
- 3481US2025362639A1Electrophotographic cleaning blade, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 3578US2025348015A1Image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 3677US2025284239A1Electrophotography cleaning blade, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 3772US12339597B2Electro-conductive member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2022·Granted Jun 24, 2025·0 cites·8 claims
- 3872US2025314988A1Electrophotographic member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 3972US2025314986A1Electrophotographic member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 4072US2025314987A1Electrophotographic member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 4161US7769554B2Instrument check systemYOKOGAWA ELECTRIC CORP·Filed 2007·Granted Aug 3, 2010·2 cites·10 claims
- 4261US2025362638A1Electrophotographic cleaning blade, process cartridge, electrophotographic image forming apparatus and urethane molded productCANON KK·Filed 2025·Application pending·0 cites
- 4360US12498646B2Electrophotographic conductive member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2024·Granted Dec 16, 2025·0 cites·14 claims
- 4458US12259674B2Electroconductive member, process cartridge, and electrophotographic image formation deviceCANON KK·Filed 2022·Granted Mar 25, 2025·0 cites·21 claims
- 4558US2024343571A1Active oxygen supply deviceCANON KK·Filed 2024·Application pending·0 cites
- 4658US2024349416A1Device for treatment with activated oxyegen and method for treatment with activated oxygenCANON KK·Filed 2024·Application pending·0 cites
- 4758US2024343572A1Treatment apparatus using reactive oxygen and treatment method using reactive oxygenCANON KK·Filed 2024·Application pending·0 cites
- 4858US2024342337A1Gas treatment device and gas treatment methodCANON KK·Filed 2024·Application pending·0 cites
- 4954US12510839B2Process cartridge and process cartridge setCANON KK·Filed 2024·Granted Dec 30, 2025·0 cites·11 claims
- 5052US2023139536A1Sterilization device, sterilization method, active oxygen supply device, and device for treatment with active oxygenCANON KK·Filed 2022·Application pending·0 cites
Showing the top 50 of 60 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yuichi Kikuchi 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 →