Inventor · disambiguated record
Yuichi Fukui
Also filed as: FUKUI YUICHI
71 granted patents·8 pending applications·624 citations·filing 1979–2025
99Inventor score
Top patents by PatentIndex Score
79 records- 0198US9291994B2Cartridge and image forming apparatusCANON KK·Filed 2014·Granted Mar 22, 2016·32 cites·15 claims
- 0298US8879954B2Cartridge with member for fixing a member-to-be-energizedCANON KK·Filed 2012·Granted Nov 4, 2014·28 cites·10 claims
- 0397US11977344B2Image forming apparatus and image forming systemCANON KK·Filed 2022·Granted May 7, 2024·5 cites·24 claims
- 0497US11829100B2Electrophotographic image forming apparatus and catridgeCANON KK·Filed 2021·Granted Nov 28, 2023·6 cites·74 claims
- 0597US9688008B2Manufacturing method for cartridge having a molded electrodeCANON KK·Filed 2016·Granted Jun 27, 2017·13 cites·10 claims
- 0697US9188940B2Developing device, process cartridge and drum unitCANON KK·Filed 2014·Granted Nov 17, 2015·20 cites·9 claims
- 0797US8909096B2Developing device, process cartridge and drum unitCANON KK·Filed 2012·Granted Dec 9, 2014·23 cites·28 claims
- 0896US12066785B2Cartridge and image forming apparatusCANON KK·Filed 2023·Granted Aug 20, 2024·5 cites·41 claims
- 0996US9541863B2Developer accommodating unit, developing device, process catridge and electrophotographic image forming apparatusCANON KK·Filed 2015·Granted Jan 10, 2017·23 cites·42 claims
- 1096US9052640B2Developer accommodating unit, developing device, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Jun 9, 2015·30 cites·40 claims
- 1196US8983335B2Process cartridge, developing device and image forming apparatusCANON KK·Filed 2013·Granted Mar 17, 2015·20 cites·22 claims
- 1296US8879944B2Cartridge having molded resin electrodeTAKARADA HIROSHI·Filed 2012·Granted Nov 4, 2014·22 cites·57 claims
- 1395US9727021B2Cartridge, image forming apparatus and manufacturing method of the cartridgeCANON KK·Filed 2016·Granted Aug 8, 2017·9 cites·14 claims
- 1495US9720374B2Cartridge, image forming apparatus and manufacturing method of the cartridgeCANON KK·Filed 2016·Granted Aug 1, 2017·9 cites·16 claims
- 1595US9367025B2Cartridge including cartridge electrode integrally molded with frameTAKARADA HIROSHI·Filed 2014·Granted Jun 14, 2016·13 cites·13 claims
- 1695US9274489B2Cartridge with electrode member constituting a conducting pathCANON KK·Filed 2012·Granted Mar 1, 2016·13 cites·33 claims
- 1794US11392082B2Cartridge with a mechanism for transmitting a force to a developing roller of the cartridgeCANON KK·Filed 2019·Granted Jul 19, 2022·11 cites·29 claims
- 1893US9733612B2Cartridge package and packageable process cartridgeCANON KK·Filed 2016·Granted Aug 15, 2017·10 cites·36 claims
- 1990US9304488B2Cartridge package and packageable process cartridgeCANON KK·Filed 2014·Granted Apr 5, 2016·12 cites·30 claims
- 2090US5540874ACellulose solution for shaping and method of shaping the sameMITSUBISHI RAYON CO·Filed 1994·Granted Jul 30, 1996·60 cites·10 claims
- 2189US12124190B2Toner container including guiding portion with a guiding surfaceCANON KK·Filed 2022·Granted Oct 22, 2024·1 cites·15 claims
- 2288USD798949SProcess cartridge for image forming apparatusCANON KK·Filed 2015·Granted Oct 3, 2017·27 cites·1 claims
- 2388US9772600B2Side member, cartridge, and image forming apparatusCANON KK·Filed 2016·Granted Sep 26, 2017·3 cites·35 claims
- 2487US2025291277A1Image forming apparatus and image forming systemCANON KK·Filed 2025·Application pending·0 cites
- 2585US12072669B2Cartridge having a member for transmitting a driving force for rotating a developing rollerCANON KK·Filed 2021·Granted Aug 27, 2024·1 cites·35 claims
- 2683US2025224694A1Electrophotographic image forming apparatus and cartridgeCANON KK·Filed 2025·Application pending·0 cites
- 2783US2024411265A1Electrophotographic image forming apparatus and cartridgeCANON KK·Filed 2024·Application pending·0 cites
- 2881US12346041B2Image forming apparatus and image forming systemCANON KK·Filed 2024·Granted Jul 1, 2025·0 cites·15 claims
- 2981US12321128B2Electrophotographic image forming apparatus and cartridgeCANON KK·Filed 2023·Granted Jun 3, 2025·0 cites·51 claims
- 3080USD798948SProcess cartridge for image forming apparatusCANON KK·Filed 2015·Granted Oct 3, 2017·21 cites·1 claims
- 3180US9146526B2Unit, cleaning unit, process cartridge, and image forming apparatusCANON KK·Filed 2013·Granted Sep 29, 2015·2 cites·28 claims
- 3280US4319269AExternal appearance inspecting systemKANEBO LTD·Filed 1979·Granted Mar 9, 1982·29 cites·9 claims
- 3378USD791862SProcess cartridge for image forming apparatusCANON KK·Filed 2015·Granted Jul 11, 2017·19 cites·1 claims
- 3477US12222674B2Cartridge, toner cartridge, and image forming apparatusCANON KK·Filed 2023·Granted Feb 11, 2025·0 cites·60 claims
- 3577US12111585B2Image forming apparatus and process unitCANON KK·Filed 2023·Granted Oct 8, 2024·0 cites·12 claims
- 3676USD791224SProcess cartridge for image forming apparatusCANON KK·Filed 2015·Granted Jul 4, 2017·17 cites·1 claims
- 3776US9122235B2Process cartridge and image forming apparatus with means to regulate movement of developing unit with respect to drum unit in axial direction of developing rollerCANON KK·Filed 2013·Granted Sep 1, 2015·2 cites·20 claims
- 3874US11841634B2Image forming apparatus and process unitCANON KK·Filed 2022·Granted Dec 12, 2023·0 cites·11 claims
- 3974US9348264B2Unit, cleaning unit, process cartridge, and image forming apparatusCANON KK·Filed 2015·Granted May 24, 2016·1 cites·19 claims
- 4074US2025138475A1Cartridge, toner cartridge, and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 4173USD807955SSide cover for process cartridge for image forming deviceCANON KK·Filed 2015·Granted Jan 16, 2018·15 cites·1 claims
- 4272US12429814B2Image forming apparatus, process cartridges, and connecting memberCANON KK·Filed 2023·Granted Sep 30, 2025·0 cites·4 claims
- 4370US6072474ADocument processing deviceSHARP KK·Filed 1996·Granted Jun 6, 2000·66 cites·18 claims
- 4462USD786962SSide cover for process cartridge for image forming deviceCANON KK·Filed 2015·Granted May 16, 2017·9 cites·1 claims
- 4561US9891583B2Remanufacturing method of developer accommodating unitCANON KK·Filed 2017·Granted Feb 13, 2018·0 cites·19 claims
- 4660US9599957B2Image forming apparatusCANON KK·Filed 2014·Granted Mar 21, 2017·0 cites·13 claims
- 4758USD832339SProcess cartridge for image forming apparatusCANON KK·Filed 2016·Granted Oct 30, 2018·6 cites·1 claims
- 4858US10025261B2Image forming apparatusCANON KK·Filed 2017·Granted Jul 17, 2018·0 cites·10 claims
- 4958US9575434B2Remanufacturing method of developer accommodating unitCANON KK·Filed 2015·Granted Feb 21, 2017·0 cites·14 claims
- 5056US2025103000A1Cartridge and image forming apparatusCANON KK·Filed 2024·Application pending·0 cites
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →