Hideyoshi Nagaki

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Toyama, JP

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Patents Grantslast 30 patents

Information Patent Grant
4H-1-benzopyran-4-one derivative or its salt, process for producing...
- Patent number 4,954,518
- Issue date Sep 4, 1990
- Toyama Chemical Company, Ltd.
- Shuntaro Takano
- C07 - ORGANIC CHEMISTRY
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
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
Information Patent Grant
4-oxo-1,4-dihydronicotinic acid derivatives, salts thereof, and ant...
- Patent number 4,698,352
- Issue date Oct 6, 1987
- Toyama Chemical Co., Ltd.
- Hirokazu Narita
- C07 - ORGANIC CHEMISTRY