Sumitaka Nogami

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic photoconductor using aluminum phthalocyanine co...
- Patent number 4,732,832
- Issue date Mar 22, 1988
- Asahi Kasei Kogyo Kabushiki Kaisha
- Sumitaka Nogami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polynuclear fused aromatic ring type polymer and preparation thereof
- Patent number 4,463,162
- Issue date Jul 31, 1984
- Asahi-Dow Limited
- Sumitaka Nogami
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Layered persistent photoconductive element comprises pigment layer...
- Patent number 4,444,860
- Issue date Apr 24, 1984
- Asahi Kasei Kogyo Kabushiki Kaisha
- Akitaka Yasujima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photo sensitive article for electrophotography containing charge tr...
- Patent number 4,444,861
- Issue date Apr 24, 1984
- Ashai Kasei Kogyo Kabushiki Kaisha
- Sumitaka Nogami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY