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Eiichi Ohsugi
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Kawanishi, JP
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last 30 patents
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Patent Grant
Certain 3,4-dihydro 4-oxospiro [2H-1 benzopyrans] useful for treati...
Patent number
5,268,386
Issue date
Dec 7, 1993
Shionogi & Co., Ltd.
Hiroshi Harada
C07 - ORGANIC CHEMISTRY
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Patent Grant
2,4,6-substituted phenol derivatives
Patent number
5,093,363
Issue date
Mar 3, 1992
Shionogi & Co., Ltd.
Toru Kita
C07 - ORGANIC CHEMISTRY