Katsuyuki Nagumo

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Nicotinic acid derivatives
- Patent number 4,851,535
- Issue date Jul 25, 1989
- Toyama Chemical Co., Ltd.
- Yozo Todo
- 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
Process for producing 1-substituted aryl-1,4-dihydro-4-oxonaphthyri...
- Patent number 4,704,459
- Issue date Nov 3, 1987
- Toyama Chemical Co., Ltd.
- Yozo Todo
- C07 - ORGANIC CHEMISTRY