4H-1-benzopyran-4-one derivative or its salt, process for producing the same and pharmaceutical composition comprising the same as active ingredient

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United States of America Patent

PATENT NO 4954518
SERIAL NO

07255121

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Abstract

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This invention relates to a 4H-1-benzopyran-4-one derivative represented by the formula: ##STR1## or a salt thereof, a process for producing the same and a pharmaceutical composition comprising the same as active ingredient.

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Patent Owner(s)

Patent OwnerAddress
TOYAMA CHEMICAL COLTD 2-5 3-CHOME NISHISHINJUKU A CORP OF JAPAN SHINJUKU-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inaba, Takihiro Namerikawa, JP 15 102
Makino, Shinji Kurobe, JP 43 328
Nagaki, Hideyoshi Toyama, JP 4 101
Shimotori, Tomoya Toyama, JP 3 61
Takano, Shuntaro Toyama, JP 21 233
Takeno, Ryuko Toyama, JP 11 65
Tanaka, Keiichi Toyama, JP 226 4320
Yoshida, Chosaku Tokaoka, JP 13 133

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