Inventor
NAKAJIMA KEIGO
JP33 patents
⚠️ This page may combine multiple inventors who share the name “NAKAJIMA KEIGO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BROTHER IND LTD
24 patentsUS10739698B2Aug 11, 2020
Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing
BROTHER IND LTD2 citations72
US10031467B2Jul 24, 2018
Cleaning roller provided with shaft and elastic body wound thereabout
BROTHER IND LTD2 citations72
US12498650B2Dec 16, 2025
Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing
BROTHER IND LTD0 citations62
US12147171B2Nov 19, 2024
Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing
BROTHER IND LTD0 citations62
US12050428B2Jul 30, 2024
Image forming apparatus requesting execution of density correction process
BROTHER IND LTD0 citations62
US11675304B2Jun 13, 2023
Image forming apparatus requesting execution of density correction process
BROTHER IND LTD0 citations62
US11537062B2Dec 27, 2022
Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing
BROTHER IND LTD0 citations62
US11372359B2Jun 28, 2022
Image forming apparatus requesting execution of density correction process
BROTHER IND LTD0 citations62
US11143981B2Oct 12, 2021
Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing
BROTHER IND LTD0 citations62
US10901340B2Jan 26, 2021
Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing
BROTHER IND LTD0 citations62
US7829840B2Nov 9, 2010
Developing unit, process cartridge, and image forming device
BROTHER IND LTD2 citations62
US11415912B2Aug 16, 2022
Developing cartridge including agitator configured to contact peripheral surface of supply roller
BROTHER IND LTD0 citations61
US10684584B1Jun 16, 2020
Development device
BROTHER IND LTD1 citations60
US11537061B2Dec 27, 2022
Image forming apparatus, and control method for the same
BROTHER IND LTD0 citations52
US11061357B2Jul 13, 2021
Image forming apparatus with rotation-controllable photosensitive drum and movable developing roller
BROTHER IND LTD0 citations52
US11720049B2Aug 8, 2023
Developing cartridge including first cam rotatable with first gear and second cam rotatable with second gear to separate developing roller from photosensitive drum
BROTHER IND LTD0 citations51
US10890858B2Jan 12, 2021
Development device
BROTHER IND LTD0 citations51
US10248072B2Apr 2, 2019
Cleaning roller provided with shaft and elastic body wound thereabout
BROTHER IND LTD0 citations51
US9989914B2Jun 5, 2018
Cleaning roller and cleaning device
BROTHER IND LTD1 citations51
US8903267B2Dec 2, 2014
Developing device
BROTHER IND LTD0 citations51
US12271126B2Apr 8, 2025
Image forming apparatus configured to perform cleaning operation for cleaning drum cleaning roller configured to collect toner on photosensitive drum
BROTHER IND LTD0 citations50
US10452023B2Oct 22, 2019
Image forming apparatus and drum cartridge
BROTHER IND LTD0 citations39
US10386784B2Aug 20, 2019
Image forming apparatus including handle cover configured to cover handle of drum cartridge
BROTHER IND LTD0 citations39
US10274862B2Apr 30, 2019
Image forming apparatus including drum cartridge
BROTHER IND LTD0 citations39
NAKAJIMA KEIGO
6 patentsUS8229318B2Jul 24, 2012
Image forming device having a detachable process unit supporting fluid communication between developer cartridges
NAKAJIMA KEIGO9 citations83
US8855524B2Oct 7, 2014
Developing apparatus, process cartridge and image forming apparatus
NAKAJIMA KEIGO2 citations61
US8588644B2Nov 19, 2013
Developing device
NAKAJIMA KEIGO3 citations61
US8725033B2May 13, 2014
Image forming device having detachable process unit
NAKAJIMA KEIGO0 citations51
US8290379B2Oct 16, 2012
Image forming device and detachable process unit
NAKAJIMA KEIGO0 citations50
US8320780B2Nov 27, 2012
Image forming device and detachable process unit
NAKAJIMA KEIGO0 citations39