Isao Watanabe

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Toyama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piperazine derivative or its salt, process for producing the same a...
- Patent number 4,948,796
- Issue date Aug 14, 1990
- Toyama Chemical Co., Ltd.
- Toru Hiraiwa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyridyl ester containing 1,4-dihydropyridine derivatives and salts...
- Patent number 4,731,370
- Issue date Mar 15, 1988
- Toyama Chemical Co., Ltd.
- Isao Watanabe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Vasodilating and platelet aggregation inhibiting 1,4 dihydropyridin...
- Patent number 4,713,387
- Issue date Dec 15, 1987
- Toyama Chemical Co., Ltd.
- Isao Watanabe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Novel 2-[4-(3-methyl-2-thienyl)phenyl]propionic acid and pharmaceut...
- Patent number 4,230,719
- Issue date Oct 28, 1980
- Toyama Chemical Co., Ltd.
- Tsutomu Kodama
- C07 - ORGANIC CHEMISTRY