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Yoshio Muramatsu
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Tokyo, JP
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last 30 patents
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Patent Grant
Process for the production of dis-azo pigment
Patent number
5,622,555
Issue date
Apr 22, 1997
Toyo Ink Manufacturing Co., Ltd.
Yoshio Muramatsu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Patent Grant
Process for the production of copper phthalocyanine pigment composi...
Patent number
5,427,616
Issue date
Jun 27, 1995
Toyo Ink Manufacturing Co., Ltd.
Kosaku Tsuji
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...