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Kyoichi Takeda
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Kashima, JP
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last 30 patents
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Patent Grant
Method and apparatus for dehydrogenation
Patent number
5,463,156
Issue date
Oct 31, 1995
Sumikin Chemical Co., Ltd.
Takashiro Muroi
C07 - ORGANIC CHEMISTRY
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Patent Grant
Side-chain alkylation method
Patent number
5,414,174
Issue date
May 9, 1995
Sumikin Chemical Co., Ltd.
Toshio Sato
C07 - ORGANIC CHEMISTRY
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Patent Grant
Production process of 1,4,5,8-naphthalene tetracarboxylic acid
Patent number
5,354,899
Issue date
Oct 11, 1994
Sumikin Chemical Co.
Toshio Sato
C07 - ORGANIC CHEMISTRY