Yoji Shiraishi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing master and working pattern plates for etching a...
- Patent number 5,801,833
- Issue date Sep 1, 1998
- Dai Nippon Printing Co., Ltd.
- Kei Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of producing master and working pattern plates for etching a...
- Patent number 5,500,326
- Issue date Mar 19, 1996
- Dai Nippon Printing Co., Ltd.
- Kei Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY