Inventor
HIRATA YUICHIRO
JP30 patents
⚠️ This page may combine multiple inventors who share the name “HIRATA YUICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
25 patentsUS9256157B2Feb 9, 2016
Moving mechanism for a developing device, process cartridge and image forming apparatus that reduces or removes press-contact forces on a developer carrying member
CANON KK10 citations83
US10719029B2Jul 21, 2020
Image forming apparatus
CANON KK1 citations72
US11372348B2Jun 28, 2022
Developing device, cartridge, image forming apparatus
CANON KK4 citations71
US11860565B2Jan 2, 2024
Restricting member, developing device, process cartridge, and image forming apparatus
CANON KK2 citations70
US9116456B2Aug 25, 2015
Image forming apparatus
CANON KK3 citations63
US11249416B2Feb 15, 2022
Image forming apparatus
CANON KK0 citations62
US11016409B2May 25, 2021
Image forming apparatus
CANON KK0 citations62
US9280133B2Mar 8, 2016
Development device, process cartridge, and image forming apparatus
CANON KK2 citations62
US9116459B2Aug 25, 2015
Electrophotographic image forming apparatus
CANON KK2 citations62
US7664442B2Feb 16, 2010
Developing apparatus
CANON KK2 citations62
US11835888B2Dec 5, 2023
Developing device, cartridge, image forming apparatus
CANON KK0 citations61
US12455528B2Oct 28, 2025
Restricting member, developing device, process cartridge, and image forming apparatus
CANON KK0 citations60
US12547111B2Feb 10, 2026
Image forming apparatus for mounting cartridges of different lifespans
CANON KK0 citations52
US9341975B2May 17, 2016
Image forming apparatus
CANON KK0 citations52
US11079712B2Aug 3, 2021
Image forming apparatus for an intermediate transfer of a toner image and for reversely transferring collected developer to an image bearing member
CANON KK0 citations51
US11073781B2Jul 27, 2021
Image forming apparatus that suppresses occurrence of image smearing by maintaining a metal soap on a surface of a photoconductor
CANON KK0 citations51
US11054786B2Jul 6, 2021
Image forming apparatus
CANON KK0 citations51
US10551765B2Feb 4, 2020
Image forming apparatus
CANON KK0 citations51
US10481539B2Nov 19, 2019
Image forming apparatus
CANON KK0 citations51
US10274885B2Apr 30, 2019
Image forming apparatus having multiple image forming modes
CANON KK0 citations51
US10031461B2Jul 24, 2018
Image forming apparatus having multiple image forming modes
CANON KK0 citations51
US9766571B2Sep 19, 2017
Process cartridge with developing container for an image forming apparatus
CANON KK0 citations51
US9213257B2Dec 15, 2015
Small-sized developing device and process cartridge having stable developer regulation
CANON KK0 citations51
US11022933B2Jun 1, 2021
Process cartridge, image forming apparatus and cleaning apparatus
CANON KK0 citations50
US10359732B2Jul 23, 2019
Image forming apparatus
CANON KK0 citations41
HIRATA YUICHIRO
3 patentsUS8137537B2Mar 20, 2012
Filtered water monitoring device and filtered water monitoring system
HIRATA YUICHIRO12 citations76
US8478140B2Jul 2, 2013
Image forming apparatus featuring a developer replenishing device
HIRATA YUICHIRO4 citations60
US8494386B2Jul 23, 2013
Image forming apparatus featuring control of toner supply between image bearing member and cleaning blade
HIRATA YUICHIRO1 citations50