Inventor
GOFUKU SHUICHI
JP38 patents
⚠️ This page may combine multiple inventors who share the name “GOFUKU SHUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
35 patentsUS10691063B2Jun 23, 2020
Process cartridge and image forming apparatus
CANON KK9 citations92
US9696684B2Jul 4, 2017
Process cartridge and image forming apparatus
CANON KK7 citations84
USD788213SMay 30, 2017
Process cartridge for image forming apparatus
CANON KK6 citations84
US9063501B2Jun 23, 2015
Developer accommodating unit with light guide member for detecting remaining toner amount
CANON KK19 citations84
US10732545B2Aug 4, 2020
Cartridge remanufacturing method and cartridge
CANON KK7 citations82
US10101688B2Oct 16, 2018
Gear unit, developing device, and manufacturing method therefor
CANON KK2 citations73
US9785086B2Oct 10, 2017
Developer container, developing device, process cartridge, and image forming apparatus
CANON KK2 citations73
USD790005SJun 20, 2017
Process cartridge for image forming apparatus
CANON KK3 citations73
USD790004SJun 20, 2017
Process cartridge for image forming apparatus
CANON KK3 citations73
USD789446SJun 13, 2017
Process cartridge for image forming apparatus
CANON KK4 citations73
US9519264B2Dec 13, 2016
Process cartridge and image forming apparatus
CANON KK2 citations63
US9063507B2Jun 23, 2015
Development device, process cartridge, and image forming apparatus
CANON KK2 citations63
US12585223B2Mar 24, 2026
Process cartridge and image forming apparatus
CANON KK0 citations62
US12292711B2May 6, 2025
Process cartridge and image forming apparatus
CANON KK0 citations62
US12222674B2Feb 11, 2025
Cartridge, toner cartridge, and image forming apparatus
CANON KK0 citations62
US12174582B2Dec 24, 2024
Process cartridge and image forming apparatus
CANON KK0 citations62
US12130581B2Oct 29, 2024
Process cartridge and image forming apparatus
CANON KK0 citations62
US11687029B2Jun 27, 2023
Process cartridge and image forming apparatus
CANON KK0 citations62
US11320782B2May 3, 2022
Process cartridge and image forming apparatus
CANON KK0 citations62
US11314201B2Apr 26, 2022
Process cartridge and image forming apparatus
CANON KK0 citations62
US11237498B2Feb 1, 2022
Image forming apparatus including a movement mechanism for moving a toner container that is replaceable
CANON KK1 citations62
US11971682B2Apr 30, 2024
Cartridge and image forming apparatus
CANON KK0 citations60
US11650538B2May 16, 2023
Cartridge and image forming apparatus
CANON KK0 citations60
US12529980B2Jan 20, 2026
Image forming apparatus
CANON KK0 citations52
US12050423B2Jul 30, 2024
Drive mechanism and image forming apparatus
CANON KK0 citations52
US9964921B2May 8, 2018
Process cartridge and image forming apparatus
CANON KK0 citations52
US9785087B2Oct 10, 2017
Developer container, developing apparatus, process cartridge, and image forming apparatus
CANON KK0 citations52
US9658591B2May 23, 2017
Cleaning apparatus, process cartridge, and image forming apparatus
CANON KK0 citations52
US9310713B2Apr 12, 2016
Developer container, developing device, process cartridge, and image forming apparatus
CANON KK1 citations52
US9239544B2Jan 19, 2016
Development apparatus, process cartridge, and image forming apparatus
CANON KK1 citations52
US9058018B2Jun 16, 2015
Process cartridge and image forming apparatus
CANON KK1 citations52
US11841646B2Dec 12, 2023
Developer storage device and image forming apparatus to determine service life or replacement time of the developer storage device
CANON KK0 citations51
US9046814B2Jun 2, 2015
Developing device, process cartridge, and image forming apparatus
CANON KK0 citations42
US10670986B2Jun 2, 2020
Developing apparatus and image forming apparatus
CANON KK0 citations40
US10372062B2Aug 6, 2019
Developing apparatus and process cartridge
CANON KK0 citations40