Yoshiyuki Zama

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Nagareyama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pyridine-N-oxide derivative
- Patent number 5,081,248
- Issue date Jan 14, 1992
- Kaken Pharmaceutical Co., Ltd.
- Yoshiyuki Zama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cephalosporin compounds, processes for their preparation and antiba...
- Patent number 4,883,879
- Issue date Nov 28, 1989
- Kaken Pharmaceutical Co., Ltd.
- Yoshiyuki Zama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cephalosporin compounds, and antibacterial agents
- Patent number 4,822,786
- Issue date Apr 18, 1989
- Kaken Pharmaceutical Co., Ltd.
- Yoshiyuki Zama
- C07 - ORGANIC CHEMISTRY