P

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 patents
US10649350B2May 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

YAMAUCHI KAZUHIRO

1 patent

KIKUCHI YUICHI

1 patent

PANASONIC CORP

1 patent