Inventor
MATSUMARU NAOKI
US34 patents
⚠️ This page may combine multiple inventors who share the name “MATSUMARU NAOKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
31 patentsUS6963706B2Nov 8, 2005
Process cartridge and electrophotographic image forming apparatus
CANON KK144 citations98
US9052638B2Jun 9, 2015
Cartridge and image forming apparatus with seal member for sealing a toner feeding opening
CANON KK43 citations94
USD508074SAug 2, 2005
Image forming apparatus
CANON KK18 citations93
US7203442B2Apr 10, 2007
Image forming apparatus, unit mountable thereto and separating member
CANON KK53 citations92
US7062195B2Jun 13, 2006
Toner seal member, and process cartridge
CANON KK34 citations90
US11703794B2Jul 18, 2023
Cartridge and image forming apparatus
CANON KK4 citations86
US10678184B2Jun 9, 2020
Image forming apparatus and cartridge
CANON KK11 citations86
US10901366B2Jan 26, 2021
Image forming apparatus and cartridge
CANON KK5 citations84
US10627780B2Apr 21, 2020
Cartridge and image forming apparatus
CANON KK9 citations84
USD873341SJan 21, 2020
Process cartridge for image forming apparatus
CANON KK7 citations84
US9417604B2Aug 16, 2016
Image forming apparatus
CANON KK11 citations84
US10962927B2Mar 30, 2021
Cartridge and imaging forming apparatus
CANON KK5 citations82
US12072664B2Aug 27, 2024
Cartridge and image forming apparatus
CANON KK2 citations73
US9904208B2Feb 27, 2018
Accommodating container, cleaning device, developing device, process cartridge, and image forming apparatus
CANON KK3 citations73
US9823603B2Nov 21, 2017
Feeding device, cleaning device, developing device, process cartridge, and image forming apparatus
CANON KK2 citations73
US11449001B2Sep 20, 2022
Cartridge and image forming apparatus
CANON KK2 citations71
US6915091B2Jul 5, 2005
Developing apparatus
CANON KK5 citations63
US9250567B2Feb 2, 2016
Developer container for detecting developer amount based on capacitance, developing apparatus, process cartridge, and image forming apparatus
CANON KK2 citations62
US12429811B2Sep 30, 2025
Cartridge and image forming apparatus
CANON KK0 citations61
US11016411B2May 25, 2021
Process cartridge, developing apparatus, and image forming apparatus
CANON KK0 citations52
US10073380B2Sep 11, 2018
Feeding device
CANON KK1 citations52
US9568860B2Feb 14, 2017
Developer container, development device, process cartridge, and image forming apparatus
CANON KK0 citations52
US9244428B2Jan 26, 2016
Photosensitive cartridge and image forming apparatus
CANON KK1 citations52
US10802419B2Oct 13, 2020
Method of manufacturing developer container, developer container, developing apparatus, process cartridge, and image forming apparatus
CANON KK0 citations51
US9989888B2Jun 5, 2018
Method of manufacturing developer container
CANON KK0 citations51
US11782383B2Oct 10, 2023
Process cartridge
CANON KK0 citations50
US10649394B2May 12, 2020
Method of manufacturing frame unit, method of manufacturing image carrying unit, method of manufacturing cartridge, and cartridge
CANON KK0 citations42
US10564597B2Feb 18, 2020
Method for manufacturing image bearing unit and method for manufacturing cartridge
CANON KK0 citations42
US10520883B2Dec 31, 2019
Method for manufacturing image bearing unit and method for manufacturing cartridge
CANON KK0 citations42
US10345756B2Jul 9, 2019
Developing apparatus having a sealed developer bearing member, process cartridge, and image forming apparatus
CANON KK0 citations41
US10322580B2Jun 18, 2019
Frame, cartridge, image forming apparatus, and method for manufacturing frame
CANON KK0 citations41