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Toshio Ashitani
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Niihama, JP
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last 30 patents
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Patent Grant
Process for preparing aluminum sulfate
Patent number
5,356,602
Issue date
Oct 18, 1994
Sumitomo Chemical Company, Ltd.
Mitsuo Tanjo
C01 - INORGANIC CHEMISTRY
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Patent Grant
Process for preparation of alumina
Patent number
5,302,368
Issue date
Apr 12, 1994
Sumitomo Chemical Company, Limited
Takuo Harato
C01 - INORGANIC CHEMISTRY