Inventor
NISHIOKA SATORU
JP43 patents
⚠️ This page may combine multiple inventors who share the name “NISHIOKA SATORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
40 patentsUS10649350B2May 12, 2020
Electrophotographic member, process cartridge and electrophotographic apparatus
CANON KK24 citations94
US10280148B2May 7, 2019
Electroconductive member for electrophotography and quaternary ammonium salt
CANON KK28 citations94
US10108129B2Oct 23, 2018
Member for electrophotography and method of producing the member, process cartridge, and electrophotographic apparatus
CANON KK35 citations94
US10018934B2Jul 10, 2018
Electrophotographic member, process cartridge, and electrophotographic apparatus
CANON KK35 citations94
US9977353B2May 22, 2018
Electrophotographic member, process cartridge and electrophotographic image forming apparatus
CANON KK35 citations94
US9964914B2May 8, 2018
Electrophotographic member, process cartridge, and electrophotographic apparatus
CANON KK36 citations94
US9958802B2May 1, 2018
Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatus
CANON KK30 citations94
US9897931B2Feb 20, 2018
Electroconductive member for electrophotography, process cartridge, and electrophotographic image-forming apparatus
CANON KK26 citations94
US9811009B2Nov 7, 2017
Electrophotographic member, process cartridge and electrophotographic apparatus
CANON KK39 citations94
US9740133B2Aug 22, 2017
Charging member, process cartridge and electrophotographic image forming apparatus
CANON KK33 citations94
US9665028B2May 30, 2017
Electrophotographic member, process cartridge and electrophotographic apparatus
CANON KK42 citations94
US9639009B2May 2, 2017
Electrophotographic member, process cartridge, and electrophotographic apparatus
CANON KK44 citations94
US9599913B2Mar 21, 2017
Electrophotographic member, process cartridge and electrophotographic apparatus
CANON KK43 citations94
US9581931B2Feb 28, 2017
Electrophotographic member, process cartridge, and electrophotographic apparatus
CANON KK46 citations94
US9541854B2Jan 10, 2017
Electroconductive member for electrophotography, process cartridge, and electrophotographic apparatus
CANON KK35 citations94
US9442408B2Sep 13, 2016
Member for electrophotography, method for producing the same, and image forming apparatus
CANON KK33 citations94
US9442451B2Sep 13, 2016
Electroconductive member for electrophotography, process cartridge, and electrophotographic image-forming apparatus
CANON KK33 citations94
US9360789B1Jun 7, 2016
Member for electrophotography, process cartridge and image forming apparatus
CANON KK36 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
US8715830B2May 6, 2014
Electrically conducting member, process cartridge, and electrophotographic apparatus
CANON KK38 citations94
US8628854B2Jan 14, 2014
Electro-conductive member, process cartridge, and electrophotographic apparatus
CANON KK40 citations94
US9651888B2May 16, 2017
Electroconductive member with a surface layer including a porous body having a continuous open pore
CANON KK33 citations93
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
US11675282B2Jun 13, 2023
Electrophotographic member, process cartridge and electrophotographic apparatus
CANON KK2 citations73
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
US12339597B2Jun 24, 2025
Electro-conductive member, process cartridge, and electrophotographic image forming apparatus
CANON KK0 citations62
US12493251B2Dec 9, 2025
Electrophotographic member, process cartridge, and electrophotographic image forming apparatus
CANON KK0 citations52
US12259674B2Mar 25, 2025
Electroconductive member, process cartridge, and electrophotographic image formation device
CANON KK0 citations52
US9625838B2Apr 18, 2017
Electrophotographic apparatus, process cartridge, and image forming method
CANON KK1 citations52
US12498646B2Dec 16, 2025
Electrophotographic conductive member, process cartridge, and electrophotographic image forming apparatus
CANON KK0 citations51
US9934882B2Apr 3, 2018
Amine compound and ionic conductive agent, and electroconductive resin composition
CANON KK0 citations42