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Noriyuki Hirowatari
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Ohtake, JP
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last 30 patents
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Patent Grant
Method of purifying aromatic dicarboxylic acids
Patent number
5,565,609
Issue date
Oct 15, 1996
Mitsui Petrochemical Industries, Ltd.
Noriyuki Hirowatari
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for preparing resorcinol
Patent number
4,283,570
Issue date
Aug 11, 1981
Mitsui Petrochemical Industries Ltd.
Hiroaki Nakagawa
C07 - ORGANIC CHEMISTRY