Keiichiro Kamata

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Joyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Contact screen for making color separation halftone blocks
- Patent number 4,342,046
- Issue date Jul 27, 1982
- Dainippon Screen Seizo Kabushiki Kaisha
- Keiichiro Kamata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY