Inventor
FURUKAWA TAKUMI
JP34 patents
⚠️ This page may combine multiple inventors who share the name “FURUKAWA TAKUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
32 patentsUS10545453B2Jan 28, 2020
Process cartridge and electrophotographic apparatus
CANON KK26 citations94
US10416588B2Sep 17, 2019
Charging member, process cartridge, electrophotographic image forming apparatus, and method for manufacturing charging member
CANON KK29 citations94
US8991053B2Mar 31, 2015
Charging member, process for its production, and electrophotographic apparatus
CANON KK29 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
US7962068B2Jun 14, 2011
Charging member, process cartridge and electrophotographic apparatus
CANON KK48 citations93
US9360833B2Jun 7, 2016
Charging member, process cartridge and electrophotographic apparatus
CANON KK22 citations92
US8685601B2Apr 1, 2014
Electrophotographic member, method for producing the same, process cartridge and electrophotographic apparatus
CANON KK23 citations92
US8622881B1Jan 7, 2014
Conductive member, electrophotographic apparatus, and process cartridge
CANON KK25 citations92
US7693457B2Apr 6, 2010
Charging member, process cartridge, and electrophotographic apparatus
CANON KK43 citations91
US10845724B2Nov 24, 2020
Electro-conductive member, process cartridge and image forming apparatus
CANON KK11 citations86
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
US11169454B2Nov 9, 2021
Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming apparatus
CANON KK11 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
US7835669B2Nov 16, 2010
Charging roller, process cartridge and electrophotographic apparatus
CANON KK15 citations83
US7664434B2Feb 16, 2010
Charging member, process cartridge and electrophotographic apparatus
CANON KK18 citations83
US11586121B2Feb 21, 2023
Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming device
CANON KK4 citations75
US11640122B2May 2, 2023
Electroconductive member, process cartridge, and image forming apparatus
CANON KK3 citations73
US11619890B2Apr 4, 2023
Electro-conductive member, manufacturing method thereof, process cartridge, and electrophotographic image forming apparatus
CANON KK3 citations73
US11385559B2Jul 12, 2022
Electroconductive member, process cartridge, and image forming apparatus
CANON KK3 citations73
US8781369B2Jul 15, 2014
Charging roller and process for its production
CANON KK4 citations73
US11971683B2Apr 30, 2024
Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming apparatus
CANON KK2 citations72
US11397388B2Jul 26, 2022
Process for producing an electrophotographic electroconductive member
CANON KK3 citations72
US12259674B2Mar 25, 2025
Electroconductive member, process cartridge, and electrophotographic image formation device
CANON KK0 citations52
US11378910B2Jul 5, 2022
Process cartridge and image forming apparatus
CANON KK0 citations52
US10060028B2Aug 28, 2018
Charging member, manufacturing method therefor, a process cartridge, and electrophotographic apparatus
CANON KK0 citations52
US10401779B2Sep 3, 2019
Image forming apparatus
CANON KK0 citations42