Masayuki Ohtani

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power storage device and image forming apparatus
- Patent number 7,579,716
- Issue date Aug 25, 2009
- Ricoh Company, Limited
- Naoki Sato
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Image forming apparatus having rotatable electrophotographic proces...
- Patent number RE36301
- Issue date Sep 14, 1999
- Ricoh Company, Ltd.
- Tsukuru Kai
- 399 - Electrophotography
Information Patent Grant
Image forming apparatus having rotatable electrophotographic proces...
- Patent number 5,367,363
- Issue date Nov 22, 1994
- Ricoh Company, Ltd.
- Tsukuru Kai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Power storage device and image forming apparatus
- Publication number 20070274736
- Publication date Nov 29, 2007
- Ricoh Company, Limited
- Naoki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY