Katuhiko Yamada

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Developer cleaning device for electrophotography
- Patent number 4,323,306
- Issue date Apr 6, 1982
- Canon Kabushiki Kaisha
- Yoshio Ito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device
- Patent number 4,218,131
- Issue date Aug 19, 1980
- Canon Kabushiki Kaisha
- Yoshio Ito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer housing sealing device for electrophotography
- Patent number 4,168,901
- Issue date Sep 25, 1979
- Canon Kabushiki Kaisha
- Yoshio Ito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY