Yuzo Katsumata

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus including controller driving image carriers
- Patent number 7,551,867
- Issue date Jun 23, 2009
- Ricoh Company, Ltd.
- Tetsuo Yamanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including controller driving image carriers
- Patent number 7,386,259
- Issue date Jun 10, 2008
- Ricoh Company, Ltd.
- Tetsuo Yamanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including controller driving image carriers
- Patent number 7,136,600
- Issue date Nov 14, 2006
- Ricoh Company, Ltd.
- Tetsuo Yamanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Image forming apparatus including controller driving image carriers
- Publication number 20070036589
- Publication date Feb 15, 2007
- Tetsuo Yamanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20030223784
- Publication date Dec 4, 2003
- Tetsuo Yamanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY