Inventor
TOMOMIZU YUYA
JP21 patents
⚠️ This page may combine multiple inventors who share the name “TOMOMIZU YUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
14 patentsUS10545453B2Jan 28, 2020
Process cartridge and electrophotographic apparatus
CANON KK26 citations94
US9910379B2Mar 6, 2018
Charging member with concave portions containing insulating particles and electrophotographic apparatus
CANON KK20 citations93
US9904199B2Feb 27, 2018
Charging member having outer surface with concave portions bearing exposed elastic particles, and electrophotographic apparatus
CANON KK21 citations93
US11307509B2Apr 19, 2022
Electro-conductive member, method for producing same, process cartridge and electrophotographic image forming apparatus
CANON KK8 citations85
US11175602B2Nov 16, 2021
Electroconductive member, process cartridge, and electrophotographic image forming apparatus
CANON KK10 citations85
US11112748B2Sep 7, 2021
Developing member, process cartridge and electrophotographic apparatus
CANON KK9 citations85
US10663913B2May 26, 2020
Process cartridge and electrophotographic apparatus
CANON KK19 citations85
US10558136B2Feb 11, 2020
Charging member, manufacturing method of charging member, electrophotographic apparatus, and process cartridge
CANON KK16 citations85
US10317811B2Jun 11, 2019
Charging member, method for producing same, process cartridge and electrophotographic image forming apparatus
CANON KK14 citations85
US10146149B2Dec 4, 2018
Charging member, electrophotographic process cartridge, and electrophotographic image forming apparatus
CANON KK19 citations85
US11640122B2May 2, 2023
Electroconductive member, process cartridge, and image forming apparatus
CANON KK3 citations73
US11385559B2Jul 12, 2022
Electroconductive member, process cartridge, and image forming apparatus
CANON KK3 citations73
US11397388B2Jul 26, 2022
Process for producing an electrophotographic electroconductive member
CANON KK3 citations72
US10139747B2Nov 27, 2018
Electrophotographic roller and charging apparatus
CANON KK1 citations51
TOMOMIZU YUYA
3 patentsUS8526857B2Sep 3, 2013
Charging member, process for its production, process cartridge and electrophotographic apparatus
TOMOMIZU YUYA24 citations91
US8501325B2Aug 6, 2013
Charging member, process cartridge, and electrophotographic apparatus
TOMOMIZU YUYA15 citations82
US8447214B2May 21, 2013
Charging member and process for its production
TOMOMIZU YUYA3 citations61