Jiro Yoshida

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pyridonecarboxylic acid derivatives or salts thereof and drugs cont...
- Patent number 6,136,823
- Issue date Oct 24, 2000
- Wakunaga Pharmaceutical Co., Ltd.
- Nobuya Sakae
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phenylenediamines and process for preparing the same
- Patent number 5,994,575
- Issue date Nov 30, 1999
- Wakunaga Pharmaceutical Co., Ltd.
- Akira Yazaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyridonecarboxylic acid derivatives or salts thereof and antibacter...
- Patent number 5,910,498
- Issue date Jun 8, 1999
- Wakunaga Seiyaku Kabushiki Kaisha
- Akira Yazaki
- C07 - ORGANIC CHEMISTRY