Takumi Sano

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Fuji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing cephalosporin compounds
- Patent number 4,314,059
- Issue date Feb 2, 1982
- Chisei Shibuya
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Novel thiol esters and process for preparing cephalosporin compound...
- Patent number 4,258,195
- Issue date Mar 24, 1981
- Asahi Kasei Kogyo Kabushiki Kaisha
- Chisei Shibuya
- C07 - ORGANIC CHEMISTRY