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Yasuharu Sekizawa
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Tokyo, JP
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last 30 patents
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Patent Grant
3-Amino-2-hydroxy-4-phenylbutanoic acid derivatives and pharmaceuti...
Patent number
4,474,764
Issue date
Oct 2, 1984
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
Hamao Umezawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Cardiotonic agents
Patent number
4,418,070
Issue date
Nov 29, 1983
Meiji Seika Kabushiki Kaisha
Tsuneo Okonogi
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Analgesic agent
Patent number
4,395,402
Issue date
Jul 26, 1983
Zaidan Hojin Biseibutsu Kagaku Kankyu Kai
Hamao Umezawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for preparing D,L-2-amino-4-methylphosphinobutyric acid
Patent number
4,264,532
Issue date
Apr 28, 1981
Takashi Tsuruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
5-Substituted picolinic acid derivatives and an anti-hypertensive c...
Patent number
4,229,448
Issue date
Oct 21, 1980
Meuji Seika Kaisha Ltd.
Yasuharu Sekizawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Antiviral agent and treatment of viral infections
Patent number
4,216,226
Issue date
Aug 5, 1980
Meiji Seika Kaisha, Ltd.
Harumi Fukuyasu
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
5-Alkoxy-picolinic esters and anti-hypertensive composition contain...
Patent number
4,198,416
Issue date
Apr 15, 1980
Meiji Seika Kaisha, Ltd.
Takemi Koeda
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
5-Alkoxy-picolinic acid calcium salts and anti-hypertensive composi...
Patent number
4,189,489
Issue date
Feb 19, 1980
Meiji Seika Kaisha, Ltd.
Takemi Koeda
C07 - ORGANIC CHEMISTRY