Inventor
UESUGI TETSUO
JP52 patents
Patents
50 patentsUS10671013B2Jun 2, 2020
Drum unit, cartridge, electrophotographic image forming apparatus and coupling member
CANON KK16 citations94
US9885978B2Feb 6, 2018
Developer accommodating unit, process cartridge and electrophotographic image forming apparatus
CANON KK30 citations94
US9665040B2May 30, 2017
Developer accommodating unit, process cartridge and electrophotographic image forming apparatus
CANON KK31 citations94
US9529304B2Dec 27, 2016
Developer accommodating unit, process cartridge, and electrophotographic image forming apparatus
CANON KK35 citations94
US9354553B2May 31, 2016
Developer accommodating container, process cartridge and electrophotographic image forming apparatus
CANON KK33 citations94
US9310717B2Apr 12, 2016
Developer accommodating container, developing device, process cartridge and image forming apparatus
CANON KK31 citations94
US9304440B2Apr 5, 2016
Developer accommodating unit, process cartridge and electrophotographic image forming apparatus
CANON KK32 citations94
US9302801B2Apr 5, 2016
Developer accommodating unit, manufacturing method thereof, process cartridge and image forming apparatus
CANON KK30 citations94
US9207581B2Dec 8, 2015
Developer accommodating unit, developing device, process cartridge and image forming apparatus
CANON KK48 citations94
US9146500B2Sep 29, 2015
Developer accommodating unit
CANON KK35 citations94
US9063464B2Jun 23, 2015
Developer containing unit, process cartridge, and electrophotographic image forming apparatus
CANON KK37 citations94
US11061366B2Jul 13, 2021
Drum unit, cartridge and coupling member
CANON KK8 citations93
US11061364B2Jul 13, 2021
Drum unit, cartridge and coupling member
CANON KK7 citations93
US10955796B2Mar 23, 2021
Drum unit, cartridge and coupling member
CANON KK6 citations93
US10948871B2Mar 16, 2021
Drum unit, cartridge and coupling member
CANON KK6 citations93
USD622309SAug 24, 2010
Process cartridge
CANON KK19 citations93
US10175609B2Jan 8, 2019
Developer accommodating unit, process cartridge and electrophotographic image forming apparatus
CANON KK13 citations92
US11067942B2Jul 20, 2021
Drum unit, cartridge, electrophotographic image forming apparatus and coupling member
CANON KK9 citations86
US10969730B2Apr 6, 2021
Image forming apparatus and image forming unit
CANON KK9 citations85
US11762330B2Sep 19, 2023
Drum unit, cartridge and coupling member
CANON KK3 citations84
US11334023B2May 17, 2022
Drum unit, cartridge and coupling member
CANON KK3 citations84
US11150591B2Oct 19, 2021
Drum unit, cartridge, electrophotographic image forming apparatus and coupling member
CANON KK4 citations84
US11073790B2Jul 27, 2021
Drum unit, cartridge and coupling member
CANON KK5 citations84
US11073791B2Jul 27, 2021
Drum unit, cartridge and coupling member
CANON KK5 citations84
US11067948B2Jul 20, 2021
Drum unit, cartridge and coupling member
CANON KK5 citations84
US11067947B2Jul 20, 2021
Drum unit, cartridge and coupling member
CANON KK5 citations84
US11061368B2Jul 13, 2021
Drum unit, cartridge and coupling member
CANON KK5 citations84
US11061367B2Jul 13, 2021
Drum unit, cartridge and coupling member
CANON KK5 citations84
US10824106B2Nov 3, 2020
Drum unit, cartridge, electrophotographic image forming apparatus and coupling member
CANON KK4 citations84
US10620567B2Apr 14, 2020
Developer accommodating unit, process cartridge and electrophotographic image forming apparatus
CANON KK4 citations84
US10539915B2Jan 21, 2020
Drum unit, cartridge, electrophotographic image forming apparatus and coupling member
CANON KK7 citations84
USD855105SJul 30, 2019
Flange coupling for process cartridge for image forming apparatus
CANON KK4 citations84
USD622308SAug 24, 2010
Process cartridge
CANON KK15 citations84
US12287603B2Apr 29, 2025
Drum unit, cartridge and coupling member
CANON KK0 citations73
US12124211B2Oct 22, 2024
Drum unit, cartridge and coupling member
CANON KK0 citations73
US11829096B2Nov 28, 2023
Cartridge, attachment and mounting kit
CANON KK2 citations73
US11442404B2Sep 13, 2022
Drum unit, cartridge and coupling member
CANON KK1 citations73
US11442405B2Sep 13, 2022
Drum unit, cartridge and coupling member
CANON KK1 citations73
US11435693B2Sep 6, 2022
Drum unit, cartridge and coupling member
CANON KK1 citations73
US11409227B2Aug 9, 2022
Drum unit, cartridge, electrophotographic image forming apparatus and coupling member
CANON KK3 citations73
USD876535SFeb 25, 2020
Flange coupling for process cartridge for image forming apparatus
CANON KK4 citations73
US8824918B2Sep 2, 2014
Developer accommodating unit, process cartridge, electrophotographic image forming apparatus
CANON KK4 citations73
US11733636B2Aug 22, 2023
Drum unit, cartridge, electrophotographic image forming apparatus and coupling member
CANON KK0 citations63
USD950642SMay 3, 2022
Photosensitive drum for process cartridge for image forming apparatus
CANON KK0 citations63
USD910744SFeb 16, 2021
Photosensitive drum for process cartridge for image forming apparatus
CANON KK0 citations63
US12510845B2Dec 30, 2025
Image forming apparatus with pump portion for generating air to move toner to toner supplying device to developing device
CANON KK0 citations62
US12210311B2Jan 28, 2025
Cartridge, attachment and mounting kit
CANON KK0 citations62
US11815830B2Nov 14, 2023
Toner cartridge having a variable volume pump and a feeding path from the pump portion to a discharge opening
CANON KK0 citations62
US12411449B2Sep 9, 2025
Process unit including first, second and third conveyance members for conveying developer
CANON KK0 citations52
US12271147B2Apr 8, 2025
Cartridge including pressed portion to be pressed by a pressing portion of an image forming apparatus
CANON KK0 citations52
Showing the top 50 of 52 patents by PatentIndex Score.