Inventor
KIKUCHI YUICHI
JP46 patents
⚠️ This page may combine multiple inventors who share the name “KIKUCHI YUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
36 patentsUS10678154B2Jun 9, 2020
Electrophotographic electroconductive member, process cartridge, and electrophotographic image forming apparatus
CANON KK24 citations94
US10678158B2Jun 9, 2020
Electro-conductive member for electrophotography, process cartridge, and electrophotographic image forming apparatus
CANON KK24 citations94
US10416588B2Sep 17, 2019
Charging member, process cartridge, electrophotographic image forming apparatus, and method for manufacturing charging member
CANON KK29 citations94
US10280148B2May 7, 2019
Electroconductive member for electrophotography and quaternary ammonium salt
CANON KK28 citations94
US10018927B2Jul 10, 2018
Electroconductive member for electrophotography, process cartridge and electrophotographic apparatus
CANON KK29 citations94
US9958802B2May 1, 2018
Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatus
CANON KK30 citations94
US9551949B2Jan 24, 2017
Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatus
CANON KK36 citations94
US9547250B2Jan 17, 2017
Electroconductive member for electrophotography, process cartridge and electrophotographic apparatus
CANON KK37 citations94
US9541854B2Jan 10, 2017
Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatus
CANON KK35 citations94
US9146482B2Sep 29, 2015
Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatus
CANON KK37 citations94
US9128403B2Sep 8, 2015
Electrophotographic electrically conductive member
CANON KK34 citations94
US8852743B2Oct 7, 2014
Electro-conductive member for electrophotography, process cartridge, and electrophotographic apparatus
CANON KK40 citations94
US8771818B2Jul 8, 2014
Electrically conducting member for electrophotography, process cartridge and electrophotographic image forming apparatus
CANON KK39 citations94
US8628854B2Jan 14, 2014
Electro-conductive member, process cartridge, and electrophotographic apparatus
CANON KK40 citations94
US11137716B2Oct 5, 2021
Process cartridge and electrophotographic apparatus
CANON KK22 citations93
US9651888B2May 16, 2017
Electroconductive member with a surface layer including a porous body having a continuous open pore
CANON KK33 citations93
US11392050B2Jul 19, 2022
Process cartridge and electrophotographic apparatus
CANON KK14 citations86
US11366402B2Jun 21, 2022
Process cartridge and electrophotographic apparatus using the same
CANON KK18 citations86
US11347156B2May 31, 2022
Electro-conductive member for electrophotography, process cartridge for electrophotography, and electrophotographic image forming apparatus
CANON KK8 citations86
US10845724B2Nov 24, 2020
Electro-conductive member, process cartridge and image forming apparatus
CANON KK11 citations86
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
US11112719B2Sep 7, 2021
Process cartridge and electrophotographic apparatus capable of suppressing lateral running while maintaining satisfactory potential function
CANON KK20 citations85
US11340553B2May 24, 2022
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
US11385559B2Jul 12, 2022
Electroconductive member, process cartridge, and image forming apparatus
CANON KK3 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
US12032331B2Jul 9, 2024
Electroconductive member, process cartridge, and electrophotographic image forming apparatus
CANON KK2 citations66
US12339597B2Jun 24, 2025
Electro-conductive member, process cartridge, and electrophotographic image forming apparatus
CANON KK0 citations62
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
US12498646B2Dec 16, 2025
Electrophotographic conductive member, process cartridge, and electrophotographic image forming apparatus
CANON KK0 citations51
US12510839B2Dec 30, 2025
Process cartridge and process cartridge set
CANON KK0 citations50