Akira Hosoya

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Ibaraki, JP

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Patents Grantslast 30 patents

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 photosensitive material having thin amorphous s...
- Patent number 4,430,404
- Issue date Feb 7, 1984
- Hitachi, Ltd.
- Akira Hosoya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic plate having an age-hardened aluminum substrate...
- Patent number 4,405,703
- Issue date Sep 20, 1983
- Hitachi, Ltd.
- Shigeharu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Toner for developing electrostatic charge image and image forming a...
- Publication number 20020022189
- Publication date Feb 21, 2002
- HITACHI KOKI CO., LTD.
- Tsuneaki Kawanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY