Hozumi Tanaka

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Funabashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Negative-type acetalized polyvinyl alcohol resist sensitive to ioni...
- Patent number 4,556,619
- Issue date Dec 3, 1985
- Dai Nippon Insatsu Kabushiki Kaisha
- Naoya Ogata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY