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Toyonaka, JP
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last 30 patents
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Patent Grant
Preparation of optically active cis-1,3-dibenzyl-hexahydro-1H-furo[...
Patent number
4,544,635
Issue date
Oct 1, 1985
Sumitomo Chemical Co., Ltd.
Naohito Ohashi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing biotin
Patent number
4,537,973
Issue date
Aug 27, 1985
Sumitomo Chemical Company, Limited
Takeo Takahashi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Intermediates to optically active cis-1,3-dibenzyl-hexahydro-1H-fur...
Patent number
4,496,739
Issue date
Jan 29, 1985
Sumitomo Chemical Company, Limited
Naohito Ohashi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-acylamino-.alpha.-arylacetamido cephalosporins
Patent number
4,160,087
Issue date
Jul 3, 1979
Sumitomo Chemical Company, Limited
Hirotada Yamada
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-acylamino-alpha-arylacetamido cephalosporins and antibacterial co...
Patent number
4,156,724
Issue date
May 29, 1979
Sumitomo Chemical Company, Limited
Hirotada Yamada
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
7-(.alpha.-(4-Hydroxy-1,5-naphthyridine-3-carbonamido)-.alpha.-phen...
Patent number
4,117,126
Issue date
Sep 26, 1978
Sumitomo Chemical Company, Ltd.
Hirotada Yamada
C07 - ORGANIC CHEMISTRY