Tadashi Wakazawa

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Kanazawa-ku, Yokohama-shi, Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
1-oxa-1-dethia-cephalosporin compounds and antibacterial agent comp...
- Patent number 4,645,769
- Issue date Feb 24, 1987
- Merck & Co., Inc.
- Seiji Shibahara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of antibiotic 1-oxadethiacephalosporins,...
- Patent number 4,556,513
- Issue date Dec 3, 1985
- Meiji Seika Kaisha, Ltd.
- Seiji Shibahara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-Oxa-1-dethia-cephalosporin derivatives
- Patent number 4,534,898
- Issue date Aug 13, 1985
- Merck & Co., Inc.
- Seiji Shibahara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-Oxadethiacephalosporin compound and antibacterial agent containin...
- Patent number 4,497,811
- Issue date Feb 5, 1985
- Seiji Shibahara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for the production of antibiotic 1-oxadethiacephalosporins
- Patent number 4,472,576
- Issue date Sep 18, 1984
- Merck & Co., Inc.
- Tadashi Wakazawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Derivative of kanamycin A and a process for the preparation thereof
- Patent number 4,337,336
- Issue date Jun 29, 1982
- Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
- Hamao Umezawa
- C07 - ORGANIC CHEMISTRY