Inventor

TOKUWAKI TAISUKE

JP15 patents

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

RICOH KK

7 patents

US6287246B1Sep 11, 2001

Development roller

RICOH KK47 citations92

US7151904B2Dec 19, 2006

Conductive member and process cartridge and image forming apparatus using the same

RICOH KK12 citations82

US7693456B2Apr 6, 2010

Conductive member and process cartridge having it and image forming apparatus having the process cartridge

RICOH KK3 citations61

US7493064B2Feb 17, 2009

Electric conductive member, process cartridge and image forming apparatus

RICOH KK2 citations61

US7515852B2Apr 7, 2009

Conductive member, charging member using the conductive member, process cartridge using the charging member and image forming apparatus using process cartridge

RICOH KK1 citations51

US7734221B2Jun 8, 2010

Conductive member, process cartridge using conductive member and image formation apparatus using process cartridge

RICOH KK0 citations40

US7693455B2Apr 6, 2010

Conductive member, process cartridge having conductive member, and image forming apparatus having process cartridge

RICOH KK0 citations40

RICOH CO LTD

4 patents

US8041259B2Oct 18, 2011

Conductive member, process cartridge including same, and image forming apparatus including the process cartridge

RICOH CO LTD3 citations61

US7941077B2May 10, 2011

Conductive member, process cartridge using conductive member, and image forming apparatus using process cartridge

RICOH CO LTD4 citations61

US8032050B2Oct 4, 2011

Charge assembly and image formation apparatus including the same

RICOH CO LTD0 citations51

US8038590B2Oct 18, 2011

Conductive member, process cartridge having the same, and image forming apparatus having the process cartridge

RICOH CO LTD0 citations40

NAKAMURA MAKOTO

2 patents

US8105672B2Jan 31, 2012

Electroconductive member, process cartridge, and image forming apparatus

NAKAMURA MAKOTO3 citations61

US8150295B2Apr 3, 2012

Charging member, charging device including the charging member, process cartridge including the charging device and image forming apparatus including the process cartridge

NAKAMURA MAKOTO0 citations51

TAKITA KOHEI

1 patent

US11156244B2Oct 26, 2021

Embossed component and housing and image forming apparatus including same

TAKITA KOHEI0 citations48

OSHIMA TADAYUKI

1 patent

US8133161B2Mar 13, 2012

Conductive member, process cartridge, and image forming apparatus

OSHIMA TADAYUKI0 citations36