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Shigeyuki Tasaka
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Omiya, JP
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last 30 patents
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Patent Grant
1,4-Dihydropyridine derivatives
Patent number
6,306,853
Issue date
Oct 23, 2001
Nikken Chemicals Co., Ltd.
Shigeyuki Tasaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Imidazothiazole compound
Patent number
5,919,799
Issue date
Jul 6, 1999
Nikken Chemicals Co., Ltd.
Shigeyuki Tasaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1,4-dihydropyridine compound and pharmaceutical composition contain...
Patent number
5,843,950
Issue date
Dec 1, 1998
Nikken Chemicals Co., Ltd.
Shigeyuki Tasaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Imidazo[2,1-B]benzothiazole compounds and antiulcer compositions co...
Patent number
4,968,708
Issue date
Nov 6, 1990
Nikken Chemicals Co., Ltd.
Taketsugu Seki
C07 - ORGANIC CHEMISTRY