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Kunitoshi Takahashi
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Hyogo, JP
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last 30 patents
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Patent Grant
Process for producing 4,4'-diamino-1,1,'-dianthraquinonyl pigments
Patent number
5,320,678
Issue date
Jun 14, 1994
Sumitomo Chemical Co. Ltd.
Hiroki Inoue
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...