Hideki Akiyoshi

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Numazu, JP

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Patents Grantslast 30 patents

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Electrophotographic photoconductor having cylindrical base support...
- Patent number 4,837,120
- Issue date Jun 6, 1989
- Ricoh Company, Ltd.
- Hideki Akiyoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Endless belt
- Patent number 4,772,253
- Issue date Sep 20, 1988
- Ricoh Company, Ltd.
- Yutaka Koizumi
- B32 - LAYERED PRODUCTS
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Dual layer electrode used with electrophotographic photoconductor
- Patent number 4,764,442
- Issue date Aug 16, 1988
- Ricoh Company, Ltd.
- Satoshi Otomura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Photosensitive material for electrophotography contains organic pho...
- Patent number 4,741,981
- Issue date May 3, 1988
- Ricoh Co., Ltd.
- Junichiro Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Halogen doped selenium-tellurium alloy electrophotographic photocon...
- Patent number 4,286,035
- Issue date Aug 25, 1981
- Ricoh Company, Ltd.
- Hideyo Nishizima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY