Inventor
MATSUMURA JUNICHI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “MATSUMURA JUNICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
28 patentsUS9494890B2Nov 15, 2016
Developing cartridge, process cartridge and image forming apparatus
CANON KK56 citations98
US9529304B2Dec 27, 2016
Developer accommodating unit, process cartridge, and electrophotographic image forming apparatus
CANON KK35 citations94
US9310717B2Apr 12, 2016
Developer accommodating container, developing device, process cartridge and image forming apparatus
CANON KK31 citations94
US9302801B2Apr 5, 2016
Developer accommodating unit, manufacturing method thereof, process cartridge and image forming apparatus
CANON KK30 citations94
US9285707B2Mar 15, 2016
Developer accommodating unit with a urging member for urging a flexible member
CANON KK25 citations94
US9207581B2Dec 8, 2015
Developer accommodating unit, developing device, process cartridge and image forming apparatus
CANON KK48 citations94
US9188906B2Nov 17, 2015
Cartridge, developing cartridge, process cartridge and image forming apparatus
CANON KK50 citations94
US9069289B2Jun 30, 2015
Developer container, developing cartridge, process cartridge and image forming apparatus
CANON KK44 citations94
US9063464B2Jun 23, 2015
Developer containing unit, process cartridge, and electrophotographic image forming apparatus
CANON KK37 citations94
US9304441B2Apr 5, 2016
Developer accommodating container, developer accommodating unit, process cartridge and image forming apparatus
CANON KK21 citations92
USD565094SMar 25, 2008
Image forming apparatus
CANON KK21 citations92
US8867955B2Oct 21, 2014
Developer accommodating unit, process cartridge and electrophotographic image forming apparatus
CANON KK34 citations91
US10001727B2Jun 19, 2018
Developer accommodating container, developer accommodating unit, process cartridge, and electrophotographic image forming apparatus
CANON KK4 citations84
US9599930B2Mar 21, 2017
Developer accommodating container, developer accommodating unit, process cartridge, and electrophotographic image forming apparatus
CANON KK7 citations84
US9360831B2Jun 7, 2016
Developing unit, process cartridge and image forming apparatus
CANON KK11 citations84
US9304439B2Apr 5, 2016
Developer accommodating container, developer accommodating unit, process cartridge, electrophotographic image forming apparatus
CANON KK9 citations84
US10162289B2Dec 25, 2018
Developer accommodating container, developer accommodating unit, process cartridge, electrophotographic image forming apparatus
CANON KK3 citations73
US8824918B2Sep 2, 2014
Developer accommodating unit, process cartridge, electrophotographic image forming apparatus
CANON KK4 citations73
US12479138B2Nov 25, 2025
Mold, method of producing product, method of producing image forming apparatus, and non-transitory computer-readable recording medium
CANON KK0 citations62
US9250567B2Feb 2, 2016
Developer container for detecting developer amount based on capacitance, developing apparatus, process cartridge, and image forming apparatus
CANON KK2 citations62
US10496035B2Dec 3, 2019
Image forming apparatus, molded resin product for use with the image forming apparatus, and cartridge
CANON KK0 citations52
US9921544B2Mar 20, 2018
Image forming apparatus, molded resin product for use with the image forming apparatus, and cartridge
CANON KK0 citations52
US9405224B2Aug 2, 2016
Developer accommodating container with flexible members forming injection opening
CANON KK0 citations52
US9405225B2Aug 2, 2016
Developer accommodating unit, process cartridge and image forming apparatus
CANON KK0 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
US11584052B2Feb 21, 2023
Method of producing assembled product and assembling apparatus
CANON KK0 citations48
US9857767B2Jan 2, 2018
Process cartridge and image forming apparatus
CANON KK0 citations42