Shoji Hirata

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Fujisawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Antibiotics and derivatives thereof having .beta.-lactamase inhibit...
- Patent number 4,368,203
- Issue date Jan 11, 1983
- Sanraku-Ocean Co., Ltd.
- Kazuhiko Okamura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Antibiotic PS-5 and derivatives having .beta.-lactamase inhibitory...
- Patent number 4,318,916
- Issue date Mar 9, 1982
- Sanraku-Ocean Co., Ltd.
- Kazuhiko Okamura
- C07 - ORGANIC CHEMISTRY