Kohichi Katoh

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Numazu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus and image forming method using pseudo half...
- Patent number 7,724,394
- Issue date May 25, 2010
- Ricoh Company, Limited
- Kei Yasutomi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Toner for development of electrostatic images
- Patent number 6,066,429
- Issue date May 23, 2000
- Ricoh Company, Ltd.
- Kohichi Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner and method of developing
- Patent number 5,474,869
- Issue date Dec 12, 1995
- Ricoh Company, Ltd.
- Masami Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Image forming apparatus and image forming method
- Publication number 20050088697
- Publication date Apr 28, 2005
- Kei Yasutomi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Toner composition, two component developer using the toner composit...
- Publication number 20040058260
- Publication date Mar 25, 2004
- Kohichi Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY