Inventor
ICHIKAWA TOMOYA
JP62 patents
⚠️ This page may combine multiple inventors who share the name “ICHIKAWA TOMOYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BROTHER IND LTD
32 patentsUS11415933B2Aug 16, 2022
Developing cartridge providing layout of electrodes and detection gear
BROTHER IND LTD4 citations84
US10379492B2Aug 13, 2019
Developing cartridge providing layout of electrodes and detection gear
BROTHER IND LTD5 citations84
USD849131SMay 21, 2019
Toner cartridge
BROTHER IND LTD12 citations84
US10241467B2Mar 26, 2019
Developing cartridge providing layout of electrodes and detection gear
BROTHER IND LTD7 citations84
US11803154B2Oct 31, 2023
Developing cartridge providing layout of electrodes and detection gear
BROTHER IND LTD2 citations73
US11493873B2Nov 8, 2022
Layer transfer device
BROTHER IND LTD2 citations73
USD909470SFeb 2, 2021
Foil unit for a foil transfer apparatus
BROTHER IND LTD2 citations73
US10663917B2May 26, 2020
Image forming apparatus
BROTHER IND LTD4 citations73
US10663916B2May 26, 2020
Image forming apparatus
BROTHER IND LTD3 citations73
US10649366B2May 12, 2020
Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade
BROTHER IND LTD1 citations73
US9964922B2May 8, 2018
Developing cartridge providing layout of electrodes and detection gear
BROTHER IND LTD2 citations73
US12577070B2Mar 17, 2026
Foil transfer film cartridge and foil transfer device
BROTHER IND LTD0 citations63
US12204275B2Jan 21, 2025
Developing cartridge providing layout of electrodes and detection gear
BROTHER IND LTD0 citations63
US12204274B2Jan 21, 2025
Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade
BROTHER IND LTD0 citations63
US12103296B2Oct 1, 2024
Layer transfer film cartridge and layer transfer device
BROTHER IND LTD0 citations63
US11733643B2Aug 22, 2023
Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade
BROTHER IND LTD0 citations63
US11604433B2Mar 14, 2023
Developing cartridge providing layout of electrodes and detection gear
BROTHER IND LTD0 citations63
US11567449B2Jan 31, 2023
Image forming apparatus
BROTHER IND LTD0 citations63
US11262691B2Mar 1, 2022
Image forming apparatus
BROTHER IND LTD0 citations63
US11073785B2Jul 27, 2021
Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade
BROTHER IND LTD0 citations63
US11061362B2Jul 13, 2021
Image forming apparatus
BROTHER IND LTD0 citations63
US12449756B2Oct 21, 2025
Film cartridge, film unit, and layer transfer device
BROTHER IND LTD0 citations62
US12045002B2Jul 23, 2024
Film cartridge, film unit, and layer transfer device
BROTHER IND LTD1 citations62
US11874624B2Jan 16, 2024
Cartridge for foil transfer device and holder
BROTHER IND LTD0 citations62
USD948609SApr 12, 2022
Foil roll unit for foil transfer unit
BROTHER IND LTD1 citations62
US11131957B2Sep 28, 2021
Image forming apparatus including developing cartridge, toner container, and supply tube
BROTHER IND LTD0 citations62
USD906414SDec 29, 2020
Foil unit for a foil transfer apparatus
BROTHER IND LTD1 citations62
US10788784B2Sep 29, 2020
Image forming apparatus including developing cartridge, toner container, and supply tube
BROTHER IND LTD0 citations52
US10747173B2Aug 18, 2020
Developing cartridge providing layout of electrodes and detection gear
BROTHER IND LTD0 citations52
US10108130B2Oct 23, 2018
Developer cartridge having developer electrode
BROTHER IND LTD0 citations52
US12275616B2Apr 15, 2025
Layer transfer film cartridge, and layer transfer device
BROTHER IND LTD0 citations51
US11586133B2Feb 21, 2023
Layer transfer device
BROTHER IND LTD0 citations49
FUJI XEROX CO LTD
7 patentsUS7965972B2Jun 21, 2011
Image forming apparatus, powder transporting apparatus and waste-powder transporting method
FUJI XEROX CO LTD9 citations83
US7835667B2Nov 16, 2010
Discharger, image carrier unit, and image forming apparatus
FUJI XEROX CO LTD7 citations72
US7711284B2May 4, 2010
Cleaning device for a charging roller of an electrophotographic system
FUJI XEROX CO LTD2 citations62
US7813690B2Oct 12, 2010
Cleaning device
FUJI XEROX CO LTD4 citations61
US7616913B2Nov 10, 2009
Charging roller cleaning device with guiding portion and image forming device having same
FUJI XEROX CO LTD4 citations61
US9488950B2Nov 8, 2016
Contact member, image holding member, and image forming apparatus
FUJI XEROX CO LTD0 citations52
US8036586B2Oct 11, 2011
Developer delivering device and image forming apparatus
FUJI XEROX CO LTD1 citations51
ICHIKAWA TOMOYA
4 patentsUS9273772B2Mar 1, 2016
Pulley apparatus
ICHIKAWA TOMOYA19 citations89
US8280296B2Oct 2, 2012
Powder transporting device and image forming apparatus
ICHIKAWA TOMOYA5 citations62
US8116644B2Feb 14, 2012
Image forming apparatus and waste powder transporting method
ICHIKAWA TOMOYA4 citations62
US8682186B2Mar 25, 2014
Image forming device comprising charging device having plural discharge portions
ICHIKAWA TOMOYA0 citations50
YAMAGUCHI YOJI
3 patentsUS8135293B2Mar 13, 2012
Image forming apparatus and apparatus
YAMAGUCHI YOJI13 citations82
US8131165B2Mar 6, 2012
Image forming apparatus and waste powder transporting method
YAMAGUCHI YOJI4 citations60
US8116645B2Feb 14, 2012
Image forming apparatus with multiple waste powder storing containers
YAMAGUCHI YOJI4 citations60
ICHIKAWA YUZO
1 patentTANAKA MIHOKO
1 patentKUBO RYOUTA
1 patentNSK LTD
1 patentShowing the top 50 of 62 patents by PatentIndex Score.