Inventor
FUKASAWA YU
JP60 patents
Patents
50 patentsUS10095161B2Oct 9, 2018
Accommodating container, process cartridge and electrophotographic image forming apparatus
CANON KK26 citations94
US9599932B2Mar 21, 2017
Developer container with sealing member having a plurality of holes and rotatable member having a plurality of projections contactable with the sealing member
CANON KK43 citations94
US11204566B2Dec 21, 2021
Image forming apparatus and developing cartridge
CANON KK6 citations84
US10915055B2Feb 9, 2021
Drum unit, process cartridge and image forming apparatus
CANON KK4 citations84
US10452016B2Oct 22, 2019
Drum unit, process cartridge and image forming apparatus
CANON KK10 citations84
USD843443SMar 19, 2019
Process cartridge for image forming apparatus
CANON KK8 citations84
US10133215B2Nov 20, 2018
Developer container, developer storage unit, process cartridge, and image forming apparatus
CANON KK6 citations84
USD823938SJul 24, 2018
Cartridge
CANON KK12 citations84
USD823380SJul 17, 2018
Cartridge
CANON KK14 citations84
US9785091B2Oct 10, 2017
Developer container, developer storage unit, process cartridge, and image forming apparatus having a sealing member and an unsealing member
CANON KK6 citations84
USD796574SSep 5, 2017
Photosensitive drum for cartridge
CANON KK16 citations84
USD786968SMay 16, 2017
Process cartridge for printer
CANON KK15 citations84
US11906927B2Feb 20, 2024
Cartridge, drum unit and image forming apparatus
CANON KK3 citations75
US12066785B2Aug 20, 2024
Cartridge and image forming apparatus
CANON KK5 citations74
US12038716B2Jul 16, 2024
Cartridge, drum unit and image forming apparatus
CANON KK1 citations73
US12032330B2Jul 9, 2024
Cartridge, drum unit and image forming apparatus
CANON KK1 citations73
US11789378B2Oct 17, 2023
Image forming apparatus and developing cartridge
CANON KK3 citations73
US11334017B2May 17, 2022
Drum unit, process cartridge and image forming apparatus
CANON KK2 citations73
US11275326B2Mar 15, 2022
Developing device to reduce leakage of developer
CANON KK2 citations73
US10663911B2May 26, 2020
Cartridge, image forming apparatus and assembling method of drive transmission unit
CANON KK2 citations73
USD873335SJan 21, 2020
Process cartridge for image forming apparatus
CANON KK3 citations73
US10394182B2Aug 27, 2019
Cartridge, image forming apparatus and assembling method of drive transmission unit
CANON KK2 citations73
US9817361B2Nov 14, 2017
Cartridge and bearing member
CANON KK3 citations73
US9310756B2Apr 12, 2016
Image forming apparatus and main assembly of the image forming apparatus
CANON KK4 citations73
US11774876B2Oct 3, 2023
Developing unit
CANON KK2 citations71
US12204263B2Jan 21, 2025
Developer accommodating device, developing device, cartridge and image forming apparatus
CANON KK1 citations64
US12449759B2Oct 21, 2025
Cartridge, drum unit and image forming apparatus
CANON KK0 citations63
US12405566B2Sep 2, 2025
Electrophotographic image forming apparatus, cartridge and drum unit
CANON KK0 citations63
US12242222B2Mar 4, 2025
Electrophotographic image forming apparatus, cartridge and drum unit
CANON KK0 citations63
USD873336SJan 21, 2020
Process cartridge for image forming apparatus
CANON KK1 citations63
US9063507B2Jun 23, 2015
Development device, process cartridge, and image forming apparatus
CANON KK2 citations63
US12547116B2Feb 10, 2026
Cartridge and image forming apparatus
CANON KK0 citations62
US12443126B2Oct 14, 2025
Image forming apparatus and developing cartridge
CANON KK0 citations62
US12242224B2Mar 4, 2025
Cartridge including a memory mounting portion and image forming apparatus including the cartridge
CANON KK0 citations62
US12228866B2Feb 18, 2025
Image forming apparatus and developing cartridge
CANON KK0 citations62
US12174555B2Dec 24, 2024
Developing device
CANON KK0 citations62
US11841675B2Dec 12, 2023
Cartridge including a memory mounting portion and image forming apparatus including the cartridge
CANON KK0 citations62
US11841636B2Dec 12, 2023
Developing device to reduce leakage of developer
CANON KK0 citations62
US11835907B2Dec 5, 2023
Drum unit, process cartridge and image forming apparatus
CANON KK0 citations62
US11822277B2Nov 21, 2023
Image forming apparatus
CANON KK0 citations62
US11782360B2Oct 10, 2023
Developer accommodating device, developing device, cartridge and image forming apparatus
CANON KK0 citations62
US11609524B2Mar 21, 2023
Image forming apparatus
CANON KK0 citations62
US11579565B2Feb 14, 2023
Cartridge including a memory mounting portion and image forming apparatus including the cartridge
CANON KK0 citations62
US11561485B2Jan 24, 2023
Developing apparatus to increase adhesion between a seal member and a regulation portion in the developing apparatus
CANON KK0 citations62
US11204575B2Dec 21, 2021
Image forming apparatus
CANON KK0 citations62
US11204565B2Dec 21, 2021
Developing apparatus to increase adhesion between a seal member and a regulation portion in the developing apparatus
CANON KK1 citations62
US11003129B2May 11, 2021
Cartridge, image forming apparatus and assembling method of drive transmission unit
CANON KK0 citations62
US10663886B2May 26, 2020
Development cartridge, process cartridge, and image forming apparatus
CANON KK1 citations62
US12510846B2Dec 30, 2025
Developing device
CANON KK0 citations52
US11526125B2Dec 13, 2022
Cartridge and method for disassembling cartridge
CANON KK0 citations52
Showing the top 50 of 60 patents by PatentIndex Score.