Inventor
KAWAMURA TOMOFUMI
JP23 patents
Patents
23 patentsUS9164424B2Oct 20, 2015
Cartridge with flexible developer bag and elastic member for acting on the developer bag
CANON KK38 citations94
US10732545B2Aug 4, 2020
Cartridge remanufacturing method and cartridge
CANON KK7 citations82
US11442379B2Sep 13, 2022
Toner cartridge for an image forming apparatus including a pump to discharge toner by putting air into the toner discharge chamber
CANON KK2 citations73
US11016440B2May 25, 2021
Cartridge reproduction method and cartridge
CANON KK4 citations73
US10459396B2Oct 29, 2019
Image forming apparatus
CANON KK2 citations72
US11841644B2Dec 12, 2023
Toner cartridge and image forming apparatus including a screw to convey toner in the cartridge, an elastic member to loosen the toner, and a means to discharge toner together with air to the outside of the cartridge
CANON KK0 citations62
US10496034B2Dec 3, 2019
Image forming apparatus
CANON KK1 citations62
US12461468B2Nov 4, 2025
Toner cartridge having feeding member and pump for discharging toner
CANON KK0 citations61
US11982952B2May 14, 2024
Toner cartridge having feeding member and pump for discharging pump
CANON KK0 citations61
US11360427B2Jun 14, 2022
Cartridge and remanufacturing method of cartridge
CANON KK0 citations61
US10955794B2Mar 23, 2021
Cartridge and remanufacturing method of cartridge
CANON KK1 citations61
US10571858B2Feb 25, 2020
Image forming apparatus and configuration of cartridge unit
CANON KK1 citations61
US11971682B2Apr 30, 2024
Cartridge and image forming apparatus
CANON KK0 citations60
US11650538B2May 16, 2023
Cartridge and image forming apparatus
CANON KK0 citations60
US10423119B2Sep 24, 2019
Image forming apparatus including a pressing member configured to press a development unit
CANON KK0 citations52
US10261463B2Apr 16, 2019
Image forming apparatus
CANON KK0 citations52
US10073408B2Sep 11, 2018
Image forming apparatus including a pressing member configured to press a development unit
CANON KK0 citations52
US10018959B2Jul 10, 2018
Image forming apparatus
CANON KK0 citations52
US10852687B2Dec 1, 2020
Image forming apparatus
CANON KK0 citations51
US10816930B2Oct 27, 2020
Image forming apparatus
CANON KK0 citations51
US10191445B2Jan 29, 2019
Image forming apparatus
CANON KK0 citations51
US9927764B2Mar 27, 2018
Image forming apparatus
CANON KK0 citations51
US11287763B2Mar 29, 2022
Toner transport apparatus
CANON KK0 citations50