Toshiaki Hayakawa

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Silver halide photographic material
- Patent number 4,916,053
- Issue date Apr 10, 1990
- Fuji Photo Film Co., Ltd.
- Naoto Ohshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Negative silver halide photographic emulsion
- Patent number 4,883,748
- Issue date Nov 28, 1989
- Fuji Photo Film Co., Ltd.
- Toshiaki Hayakawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Core/shell silver halide photographic emulsion and method for produ...
- Patent number 4,713,318
- Issue date Dec 15, 1987
- Fuji Photo Film Co., Ltd.
- Tadao Sugimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver halide emulsion
- Patent number 4,614,711
- Issue date Sep 30, 1986
- Fuji Photo Film Co., Ltd.
- Tadao Sugimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY