P

Inventor

KOSUGE AKIO

JP53 patents
⚠️ This page may combine multiple inventors who share the name “KOSUGE AKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH KK

25 patents
US6567637B2May 20, 2003

Apparatus and method for replenishing a developing device with toner while suppressing toner remaining

RICOH KK105 citations98
US6505022B2Jan 7, 2003

Image forming apparatus having protective layer on the surface of image bearing member to avoid adhesion of film of additives to image bearing member

RICOH KK110 citations98
US6249304B1Jun 19, 2001

Image forming apparatus and image forming method for forming color images by gray-level image forming technique

RICOH KK141 citations98
US6775511B2Aug 10, 2004

Image forming apparatus capable of adjusting an amount of lubricant to be applied onto an image carrier

RICOH KK70 citations96
US6768879B2Jul 27, 2004

Image forming apparatus that applies lubricant to a surface of image carrier

RICOH KK56 citations96
US6748190B2Jun 8, 2004

Apparatus and method for replenishing a developing device with toner while suppressing toner remaining

RICOH KK42 citations96
US6576388B2Jun 10, 2003

Multilayer electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the photoreceptor

RICOH KK68 citations96
US6122468ASep 19, 2000

Method and apparatus for forming toner images

RICOH KK82 citations96
US6961529B2Nov 1, 2005

Charging device using a charge roller and image forming apparatus including the same

RICOH KK18 citations92
US6560438B2May 6, 2003

Method for removing deposit from image substrate and image formation apparatus using the method

RICOH KK24 citations92
US7778560B2Aug 17, 2010

Image forming apparatus and method of adjusting charge bias

RICOH KK10 citations84
US7756439B2Jul 13, 2010

Image forming apparatus and process cartridge used therein

RICOH KK11 citations84
US7680446B2Mar 16, 2010

Cleaning device, process cartridge and image forming apparatus

RICOH KK12 citations84
US7302197B2Nov 27, 2007

Image forming apparatus having a detachable process cartridge and a lubricant

RICOH KK11 citations84
US7289748B2Oct 30, 2007

Apparatus and method for replenishing a developing device with toner while suppressing toner remaining

RICOH KK10 citations84
US7218880B2May 15, 2007

Apparatus and method for replenishing a developing device with toner while suppressing toner remaining

RICOH KK10 citations84
US7155146B2Dec 26, 2006

Method and apparatus for electro photographic image forming capable of effectively performing an evenly charging operation

RICOH KK14 citations84
US7340200B2Mar 4, 2008

Charging unit and image forming apparatus incorporating the unit

RICOH KK8 citations74
US7113727B2Sep 26, 2006

Charging device using a charge roller and image forming apparatus including the same

RICOH KK8 citations74
US6990305B2Jan 24, 2006

Charging device using a charge roller and image forming apparatus including the same

RICOH KK10 citations73
US7756447B2Jul 13, 2010

Image forming apparatus and method of preparing toner for use in image forming apparatus

RICOH KK2 citations63
US7702257B2Apr 20, 2010

Image forming apparatus with image bearing member having a lubricant

RICOH KK3 citations63
US7551879B2Jun 23, 2009

Charging device, process unit, image forming apparatus, and method for producing rotating member

RICOH KK4 citations63
US7603063B2Oct 13, 2009

Method and apparatus for electro photographic image forming capable of effectively performing an evenly charging operation

RICOH KK1 citations52
US7596344B2Sep 29, 2009

Charging unit and image forming apparatus incorporating the unit

RICOH KK0 citations52

RICOH CO LTD

6 patents

KOSUGE AKIO

4 patents

SHINTANI TAKESHI

3 patents

KUDO NORIO

2 patents

TOMITA DAISUKE

2 patents

HATORI SATOSHI

2 patents

KOIKE TOSHIO

1 patent

KAWAHARA SHINICHI

1 patent

ISHIBASHI HITOSHI

1 patent

SAITOH KAZUYA

1 patent

ISAWA TAKAYUKI

1 patent

TAMOTO NOZOMU

1 patent

Showing the top 50 of 53 patents by PatentIndex Score.