Masatoshi Katayama

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Direct positive silver halide photographic material and method for...
- Patent number 5,362,621
- Issue date Nov 8, 1994
- Dainippon Ink and Chemicals, Inc.
- Naoki Obi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY