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Yuhji Sudoh
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Nei-gun, JP
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last 30 patents
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Patent Grant
Process for preparing an aqueous solution of sulfanilic acid modifi...
Patent number
6,458,870
Issue date
Oct 1, 2002
Nissan Chemical Industries, Ltd.
Jun Uchida
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for preparing an aqueous solution of sulfanilic acid modifi...
Patent number
6,214,965
Issue date
Apr 10, 2001
Nissan Chemical Industries, Ltd.
Jun Uchida
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES