Koichi Niwa

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic image forming device having projections on a su...
- Patent number 6,560,435
- Issue date May 6, 2003
- Hitachi, Ltd.
- Masashi Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image transfer element in a color image forming apparatus
- Patent number 5,600,420
- Issue date Feb 4, 1997
- Hitachi, Ltd.
- Masahiko Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY