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Toshiaki Ishibashi
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Ibaraki, JP
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last 30 patents
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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
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Patent Grant
Process for the production of an ion exchange membrane
Patent number
4,294,933
Issue date
Oct 13, 1981
Mitsubishi Petrochemical Company Limited
Kunio Kihara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...