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Tokyo, JA
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last 30 patents
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Patent Grant
Process for preparing beta-lactam antibiotic substances
Patent number
4,071,681
Issue date
Jan 31, 1978
Sankyo Company Limited
Hiroaki Yanagisawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing alkoxylated derivatives of cephalosporin comp...
Patent number
4,051,320
Issue date
Sep 27, 1977
Sankyo Company Limited
Hiroaki Yanagisawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 7 .alpha.-alkoxycephalosporin derivatives
Patent number
4,048,155
Issue date
Sep 13, 1977
Sankyo Company Limited
Hiroaki Yanagisawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing cephalosporin derivatives
Patent number
4,016,155
Issue date
Apr 5, 1977
Sankyo Company Limited
Hiroaki Yanagisawa
C07 - ORGANIC CHEMISTRY