Toshiyuki Koyama

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Photoconductive phthalocyanine composition
- Patent number 5,283,146
- Issue date Feb 1, 1994
- Mitsubishi Petrochemical Co., Ltd.
- Toyoshi Ohashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY