Toshinori Saito

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polychalcogen ester of cephem compound, process for preparing the s...
- Patent number 4,225,706
- Issue date Sep 30, 1980
- Meiji Seika Kaisha Ltd.
- Shigeo Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing cephalosporanic acid derivatives
- Patent number 4,175,185
- Issue date Nov 20, 1979
- Meiji Seika Kaisha Ltd.
- Shigeo Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing cephalosporin esters in the presence of liqui...
- Patent number 4,159,372
- Issue date Jun 26, 1979
- Meiji Seika Kaisha Ltd.
- Shigeo Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cephalosporin-type antibiotics and process for producing the same
- Patent number 4,113,944
- Issue date Sep 12, 1978
- Meiji Seika Kaisha, Ltd.
- Fumio Kai
- C07 - ORGANIC CHEMISTRY