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Tadashi Nakazawa
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Kanagawa, JP
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last 30 patents
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Patent Grant
Sulfonyl derivatives of an antibiotic substance isolated from strep...
Patent number
5,037,993
Issue date
Aug 6, 1991
Meiji Seika Kaisha Ltd.
Kazunori Ohba
C07 - ORGANIC CHEMISTRY
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Patent Grant
Certain anti-tumor duocarmycin antibiotics from streptomyces
Patent number
4,994,578
Issue date
Feb 19, 1991
Meiji Seika Kaisha, Ltd.
Kazunori Ohba
C07 - ORGANIC CHEMISTRY
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Patent Grant
Novel antitumor antibiotic substance and a method for production th...
Patent number
4,954,641
Issue date
Sep 4, 1990
Meiji Seika Kaisha, Ltd.
Yoshikazu Sato
C07 - ORGANIC CHEMISTRY