Fumio Koizumi

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Hachioji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Toner for developing electrostatic latent image
- Patent number 4,693,952
- Issue date Sep 15, 1987
- Konishiroku Photo Industry Co., Ltd.
- Fumio Koizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer for latent electrostatic image and process for preparatio...
- Patent number 4,164,476
- Issue date Aug 14, 1979
- Konishiroku Photo Industry Co. Ltd.
- Shotaro Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY