P

Inventor

KATOH SHUNJI

JP46 patents
⚠️ This page may combine multiple inventors who share the name “KATOH SHUNJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH KK

17 patents
US6522855B1Feb 18, 2003

Image forming apparatus and developing apparatus preventing uneven image density

RICOH KK161 citations99
US6337957B1Jan 8, 2002

Image forming apparatus and developing device with improved self toner density control

RICOH KK191 citations99
US6198895B1Mar 6, 2001

Developing device with improved developer circulation and toner density control

RICOH KK133 citations98
US6091912AJul 18, 2000

Tower supplying device and image forming apparatus using same toner supplying device

RICOH KK104 citations96
US6859634B2Feb 22, 2005

Toner refilling device and developing device using the same for an image forming apparatus

RICOH KK65 citations95
US5950055ASep 7, 1999

Powder pump and image forming apparatus having the powder pump and method therefor

RICOH KK95 citations95
US5950062ASep 7, 1999

Toner sorting device for separating reusable toner from used toner and image forming apparatus using the same device

RICOH KK84 citations95
US6151471ANov 21, 2000

Toner supplying device, method and image forming apparatus using the same toner supplying device or method

RICOH KK69 citations94
US7599650B2Oct 6, 2009

Developer bearing member, developing device, process cartridge and image forming apparatus

RICOH KK25 citations92
US5182601AJan 26, 1993

Image forming apparatus having toner handling units which are alternatively usable as a developing device or a cleaning device

RICOH KK38 citations92
US4885223ADec 5, 1989

Method and apparatus for developing electrostatic latent image

RICOH KK35 citations92
US6097903AAug 1, 2000

Toner supplying device, toner container therefor and image forming apparatus using same toner supplying device and toner container

RICOH KK53 citations91
US4922301AMay 1, 1990

Rotary multicolor developing apparatus

RICOH KK52 citations91
US4987449AJan 22, 1991

Method of sensing a remaining amount of developer for a color image forming apparatus

RICOH KK19 citations82
US4733267AMar 22, 1988

Apparatus for developing electrostatic latent image

RICOH KK23 citations82
US5227847AJul 13, 1993

Image forming equipment with supplemental developer detecting device

RICOH KK18 citations73
US4384785AMay 24, 1983

Charge quenching apparatus for electrophotographic copying machine

RICOH KK13 citations71

RICOH CO LTD

12 patents

KIKUCHI KENJI

4 patents

YOSHIDA KEIICHI

3 patents

HIROTA TETSURO

3 patents

HOSOKAWA HIROSHI

1 patent

KOJIMA SATOSHI

1 patent

SHIBA MASANA

1 patent

YAMABE JUNJI

1 patent

IKEGUCHI HIROSHI

1 patent

KATOH SAYURI

1 patent

OHHIRA TATSUYA

1 patent