Kentaroh Matsumoto

Follow

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Cleaning unit and image forming apparatus having multiple cleaning...
- Patent number 7,272,354
- Issue date Sep 18, 2007
- Ricoh Company, Ltd.
- Eisaku Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning unit, process cartridge, and image forming apparatus
- Patent number 7,110,696
- Issue date Sep 19, 2006
- Ricoh Company, Ltd.
- Eisaku Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus, image formation apparatus, and process cartridge
- Patent number 6,687,474
- Issue date Feb 3, 2004
- Ricoh Company, Ltd.
- Masahiko Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for reducing adhesion of carrier to image bear...
- Patent number 6,507,718
- Issue date Jan 14, 2003
- Ricoh Company, Ltd.
- Tokuya Ohjimi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Cleaning unit, process cartridge, image forming apparatus, and toner
- Publication number 20060216085
- Publication date Sep 28, 2006
- Eisaku Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning unit, process cartridge, image forming apparatus, and toner
- Publication number 20040136763
- Publication date Jul 15, 2004
- Eisaku Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing apparatus, image formation apparatus, and process cartridge
- Publication number 20030002884
- Publication date Jan 2, 2003
- Masahiko Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and apparatus for reducing adhesion of carrier to image bear...
- Publication number 20020051649
- Publication date May 2, 2002
- Ricoh Company, Ltd.
- Tokuya Ohjimi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY