Akio Koyama

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Toda, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vapor-deposited film of selenium as photoreceptor for electrophotog...
- Patent number 4,615,964
- Issue date Oct 7, 1986
- Nihon Kogyo Kabushiki Kaisha
- Osamu Oda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Vapor-deposited film of selenium or selenium alloy for electrophoto...
- Patent number 4,585,621
- Issue date Apr 29, 1986
- Nihon Kogyo Kabushiki Kaisha
- Osamu Oda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY