Inventor · disambiguated record
Yu Fukasawa
Also filed as: FUKASAWA YU
59 granted patents·6 pending applications·207 citations·filing 2013–2025
98Inventor score
Technology areasG03G
Files withCANON KK65
Top patents by PatentIndex Score
65 records- 0198US9599932B2Developer container with sealing member having a plurality of holes and rotatable member having a plurality of projections contactable with the sealing memberCANON KK·Filed 2014·Granted Mar 21, 2017·43 cites·36 claims
- 0297US11906927B2Cartridge, drum unit and image forming apparatusCANON KK·Filed 2022·Granted Feb 20, 2024·3 cites·24 claims
- 0397US11204566B2Image forming apparatus and developing cartridgeCANON KK·Filed 2020·Granted Dec 21, 2021·6 cites·17 claims
- 0497US10095161B2Accommodating container, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2017·Granted Oct 9, 2018·26 cites·36 claims
- 0596US12066785B2Cartridge and image forming apparatusCANON KK·Filed 2023·Granted Aug 20, 2024·5 cites·41 claims
- 0696US10452016B2Drum unit, process cartridge and image forming apparatusCANON KK·Filed 2018·Granted Oct 22, 2019·10 cites·27 claims
- 0795US11789378B2Image forming apparatus and developing cartridgeCANON KK·Filed 2021·Granted Oct 17, 2023·3 cites·19 claims
- 0893US12204263B2Developer accommodating device, developing device, cartridge and image forming apparatusCANON KK·Filed 2023·Granted Jan 21, 2025·1 cites·21 claims
- 0993US12038716B2Cartridge, drum unit and image forming apparatusCANON KK·Filed 2022·Granted Jul 16, 2024·1 cites·27 claims
- 1093US12032330B2Cartridge, drum unit and image forming apparatusCANON KK·Filed 2022·Granted Jul 9, 2024·1 cites·18 claims
- 1193US10915055B2Drum unit, process cartridge and image forming apparatusCANON KK·Filed 2019·Granted Feb 9, 2021·4 cites·14 claims
- 1293US10133215B2Developer container, developer storage unit, process cartridge, and image forming apparatusCANON KK·Filed 2017·Granted Nov 20, 2018·6 cites·27 claims
- 1392US11334017B2Drum unit, process cartridge and image forming apparatusCANON KK·Filed 2020·Granted May 17, 2022·2 cites·33 claims
- 1492US11275326B2Developing device to reduce leakage of developerCANON KK·Filed 2020·Granted Mar 15, 2022·2 cites·16 claims
- 1592US9785091B2Developer container, developer storage unit, process cartridge, and image forming apparatus having a sealing member and an unsealing memberCANON KK·Filed 2015·Granted Oct 10, 2017·6 cites·38 claims
- 1690US2025315006A1Cartridge, drum unit and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 1789US11774876B2Developing unitCANON KK·Filed 2022·Granted Oct 3, 2023·2 cites·9 claims
- 1888US10663911B2Cartridge, image forming apparatus and assembling method of drive transmission unitCANON KK·Filed 2019·Granted May 26, 2020·2 cites·27 claims
- 1987US10394182B2Cartridge, image forming apparatus and assembling method of drive transmission unitCANON KK·Filed 2017·Granted Aug 27, 2019·2 cites·27 claims
- 2087US9817361B2Cartridge and bearing memberCANON KK·Filed 2016·Granted Nov 14, 2017·3 cites·3 claims
- 2186US9310756B2Image forming apparatus and main assembly of the image forming apparatusCANON KK·Filed 2014·Granted Apr 12, 2016·4 cites·16 claims
- 2285US12449759B2Cartridge, drum unit and image forming apparatusCANON KK·Filed 2024·Granted Oct 21, 2025·0 cites·20 claims
- 2384US12443126B2Image forming apparatus and developing cartridgeCANON KK·Filed 2024·Granted Oct 14, 2025·0 cites·7 claims
- 2484US2025021033A1Developing deviceCANON KK·Filed 2024·Application pending·0 cites
- 2583US11204565B2Developing apparatus to increase adhesion between a seal member and a regulation portion in the developing apparatusCANON KK·Filed 2020·Granted Dec 21, 2021·1 cites·4 claims
- 2682US12174555B2Developing deviceCANON KK·Filed 2023·Granted Dec 24, 2024·0 cites·4 claims
- 2782US10663886B2Development cartridge, process cartridge, and image forming apparatusCANON KK·Filed 2019·Granted May 26, 2020·1 cites·16 claims
- 2882US2025053119A1Developer accommodating device, developing device, cartridge and image forming apparatusCANON KK·Filed 2024·Application pending·0 cites
- 2981US12242224B2Cartridge including a memory mounting portion and image forming apparatus including the cartridgeCANON KK·Filed 2023·Granted Mar 4, 2025·0 cites·13 claims
- 3081US12228866B2Image forming apparatus and developing cartridgeCANON KK·Filed 2023·Granted Feb 18, 2025·0 cites·13 claims
- 3180US12242222B2Electrophotographic image forming apparatus, cartridge and drum unitCANON KK·Filed 2023·Granted Mar 4, 2025·0 cites·44 claims
- 3279US11841675B2Cartridge including a memory mounting portion and image forming apparatus including the cartridgeCANON KK·Filed 2023·Granted Dec 12, 2023·0 cites·16 claims
- 3378US9063507B2Development device, process cartridge, and image forming apparatusCANON KK·Filed 2013·Granted Jun 23, 2015·2 cites·11 claims
- 3477US11835907B2Drum unit, process cartridge and image forming apparatusCANON KK·Filed 2022·Granted Dec 5, 2023·0 cites·29 claims
- 3577US2025164928A1Cartridge including a memory mounting portion and image forming apparatus including the cartridgeCANON KK·Filed 2025·Application pending·0 cites
- 3676US11822277B2Image forming apparatusCANON KK·Filed 2023·Granted Nov 21, 2023·0 cites·15 claims
- 3776US2025147462A1Electrophotographic image forming apparatus, cartridge and drum unitCANON KK·Filed 2025·Application pending·0 cites
- 3875US11841636B2Developing device to reduce leakage of developerCANON KK·Filed 2022·Granted Dec 12, 2023·0 cites·4 claims
- 3975US11782360B2Developer accommodating device, developing device, cartridge and image forming apparatusCANON KK·Filed 2022·Granted Oct 10, 2023·0 cites·16 claims
- 4075USD796574SPhotosensitive drum for cartridgeCANON KK·Filed 2016·Granted Sep 5, 2017·16 cites·1 claims
- 4173US11579565B2Cartridge including a memory mounting portion and image forming apparatus including the cartridgeCANON KK·Filed 2021·Granted Feb 14, 2023·0 cites·17 claims
- 4273USD786968SProcess cartridge for printerCANON KK·Filed 2016·Granted May 16, 2017·15 cites·1 claims
- 4372USD823380SCartridgeCANON KK·Filed 2016·Granted Jul 17, 2018·14 cites·1 claims
- 4471US12405566B2Electrophotographic image forming apparatus, cartridge and drum unitCANON KK·Filed 2021·Granted Sep 2, 2025·0 cites·89 claims
- 4571US11609524B2Image forming apparatusCANON KK·Filed 2021·Granted Mar 21, 2023·0 cites·11 claims
- 4671US9599955B2Developer storage unit, development device, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Mar 21, 2017·1 cites·32 claims
- 4770US9116503B2Developing unit, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Aug 25, 2015·1 cites·13 claims
- 4869USD823938SCartridgeCANON KK·Filed 2016·Granted Jul 24, 2018·12 cites·1 claims
- 4968US11561485B2Developing apparatus to increase adhesion between a seal member and a regulation portion in the developing apparatusCANON KK·Filed 2021·Granted Jan 24, 2023·0 cites·4 claims
- 5068US11003129B2Cartridge, image forming apparatus and assembling method of drive transmission unitCANON KK·Filed 2020·Granted May 11, 2021·0 cites·24 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →