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Masao Hamada
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Kakogawa, JP
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last 30 patents
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Patent Grant
Sizing agent composite for papermaking
Patent number
5,399,660
Issue date
Mar 21, 1995
Harima Chemicals, Inc.
Sadayuki Uchida
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Size composition for papermaking
Patent number
5,201,944
Issue date
Apr 13, 1993
Harima Chemicals, Inc.
Tomohiko Nakata
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Deinking agent for reproduction of printed waste papers
Patent number
5,158,697
Issue date
Oct 27, 1992
Harima Chemicals, Inc.
Yukiyoshi Kawamori
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of manufacturing aqueous fortified rosin dispersion
Patent number
4,544,608
Issue date
Oct 1, 1985
Harima Chemicals, Inc.
Yasutaka Nishi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE