Yasuo Katsuya

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Composition for charge transport layer and electrophotographic memb...
- Patent number 5,604,063
- Issue date Feb 18, 1997
- Hitachi Chemical Company, Ltd.
- Keiichi Endo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Enamine derivatives
- Patent number 5,233,089
- Issue date Aug 3, 1993
- Hitachi, Ltd.
- Yasuo Katsuya
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photosensitive element for electrophotography
- Patent number 5,215,842
- Issue date Jun 1, 1993
- Hitachi, Ltd.
- Sukekazu Aratani
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic plate including an undercoating layer having a...
- Patent number 4,954,406
- Issue date Sep 4, 1990
- Hitachi Chemical Company, Ltd.
- Keiichi Endo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic plate having a protective layer of a fluorine-c...
- Patent number 4,734,347
- Issue date Mar 29, 1988
- Hitachi Chemical Co., Ltd.
- Keiichi Endo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY