P

Inventor

NAGAOKA KAZUAKI

JP23 patents
⚠️ This page may combine multiple inventors who share the name “NAGAOKA KAZUAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CANON KK

19 patents
US9625854B2Apr 18, 2017

Developer carrying member, electrophotographic process cartridge, and electrophotographic image forming apparatus

CANON KK26 citations93
US7797833B2Sep 21, 2010

Developing roller and method of producing the roller, process cartridge, and electrophotographic image-forming apparatus

CANON KK44 citations92
US10678161B2Jun 9, 2020

Electrophotographic member having elastic layer with elastic modulus of 0.5 to 3.0 MPA and coating layer with elastic modulus of 5.0 to 100 MPA

CANON KK10 citations84
US10571825B1Feb 25, 2020

Electrophotographic member, electrophotographic process cartridge and electrophotographic image forming apparatus

CANON KK7 citations84
US10942471B2Mar 9, 2021

Electrophotographic member having a surface layer with a cross-linked urethane resin-containing matrix, process cartridge, and apparatus

CANON KK8 citations82
US9846407B2Dec 19, 2017

Developing member, process cartridge and electrophotographic image forming apparatus

CANON KK15 citations82
US11841629B2Dec 12, 2023

Developing roller, process cartridge, and electrophotographic image forming apparatus

CANON KK4 citations75
US11465383B2Oct 11, 2022

Electrophotographic member, electrophotographic process cartridge and electrophotographic image forming apparatus

CANON KK2 citations73
US10712684B2Jul 14, 2020

Developing roller, electrophotographic process cartridge and electrophotographic image forming apparatus

CANON KK5 citations73
US10705449B2Jul 7, 2020

Developing member, electrophotographic process cartridge, and electrophotographic image forming apparatus

CANON KK4 citations73
US11650516B2May 16, 2023

Developing apparatus, electrophotography process cartridge, and electrophotographic image forming apparatus

CANON KK2 citations72
US10831127B2Nov 10, 2020

Developing member, electrophotographic process cartridge, and electrophotographic image forming apparatus

CANON KK4 citations72
US10831126B2Nov 10, 2020

Developing roller having crown-shaped electro-conductive layer with outer surface providing electrically insulating first regions adjacent to second regions having higher conductivity

CANON KK4 citations71
US12164242B2Dec 10, 2024

Developing roller, process cartridge, and electrophotographic image forming apparatus

CANON KK0 citations62
US11520249B2Dec 6, 2022

Electrophotographic member, electrophotographic process cartridge, and electrophotographic image forming apparatus

CANON KK0 citations62
US7881646B2Feb 1, 2011

Developing roller and manufacturing method thereof, process cartridge and electrophotographic image forming apparatus

CANON KK6 citations62
US10895823B2Jan 19, 2021

Developing roller, process cartridge and electrophotographic image forming apparatus

CANON KK0 citations61
US12158724B2Dec 3, 2024

Electrophotographic member, process cartridge, and electrophotographic image forming apparatus

CANON KK0 citations51
US12366816B2Jul 22, 2025

Electrophotographic member, process cartridge, and electrophotographic image forming apparatus

CANON KK0 citations47

KAWAMURA KUNIMASA

2 patents

CANON KABUSHIKI TOKYO

1 patent

NAKAMURA MINORU

1 patent