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Katuyuki Ohtuka
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Nagareyama, JP
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last 30 patents
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Patent Grant
Benzopyran compounds, processes for their production and pharmaceut...
Patent number
5,095,016
Issue date
Mar 10, 1992
Kaken Pharmaceutical Co., Ltd.
Katuyuki Ohtuka
C07 - ORGANIC CHEMISTRY
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Patent Grant
Imidazole derivatives
Patent number
4,608,438
Issue date
Aug 26, 1986
Kaken Pharmaceutical Co., Ltd.
Katuyuki Ohtuka
C07 - ORGANIC CHEMISTRY