Koichi Hatta

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Hachioji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Silver halide color photographic material containing a 1h-pyrazole...
- Patent number 4,840,886
- Issue date Jun 20, 1989
- Konishiroku Photo Industry Co., Ltd.
- Toshifumi Iijima
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Silver halide photographic light-sensitive material
- Patent number 4,695,533
- Issue date Sep 22, 1987
- Konishiroku Photo Industry Co., Ltd.
- Noritaka Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver halide color photographic material containing a magenta coupler
- Patent number 4,665,015
- Issue date May 12, 1987
- Konishiroku Photo Industry Co., Ltd.
- Toshifumi Iijima
- C07 - ORGANIC CHEMISTRY