Ichiro Kawahara

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Tokushima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Crystals of penicillin and process for the production thereof
- Patent number 6,660,855
- Issue date Dec 9, 2003
- Otsuka Chemical Co., Ltd.
- Akihiro Shimabayashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing diazomethane derivatives
- Patent number 5,587,464
- Issue date Dec 24, 1996
- Otsuka Kagaku Kabushiki Kaisha
- Ichiro Kawahara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of beta-lactam derivatives
- Patent number 4,925,934
- Issue date May 15, 1990
- Otsuka Kagaku Kabushiki Kaisha
- Masatoshi Taniguchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing penicillanic acid derivatives
- Patent number 4,912,213
- Issue date Mar 27, 1990
- Otsuka Kagaku Kabushiki Kaisha
- Masatoshi Taniguchi
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Crystals of penicillin and process for the production thereof
- Publication number 20020193588
- Publication date Dec 19, 2002
- Akihiro Shimabayashi
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Penicillin crystal and process for producing the same
- Publication number 20020193587
- Publication date Dec 19, 2002
- Akihiro Shimabayashi
- C07 - ORGANIC CHEMISTRY