Shotaro Watanabe

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Developing material for electrophotography, process for preparation
- Patent number 4,518,674
- Issue date May 21, 1985
- Konishiroku Photo Industry Co., Ltd.
- Shotaro Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Iron powder developing carrier and the manufacturing method of the...
- Patent number 4,287,283
- Issue date Sep 1, 1981
- Konishiroku Photo Industry Co., Ltd.
- Shotaro Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic toner for developing latent electrostatic images and a pro...
- Patent number 4,230,787
- Issue date Oct 28, 1980
- Konishiroku Photo Industry Co., Ltd.
- Shotaro Watanabe
- 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