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Kimio Hamamura
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Kashiwa, JP
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last 30 patents
Information
Patent Grant
Process for producing cephem compounds in an aqueous medium
Patent number
5,998,611
Issue date
Dec 7, 1999
Eisai Chemical Co., Ltd.
Homare Shinohara
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Butenyl hydroquinone derivatives
Patent number
5,874,611
Issue date
Feb 23, 1999
Eisai Chemical Co., Ltd.
Kimio Hamamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tetrahydro-alkenyl-methanonaphthalene-5,8-dione derivatives
Patent number
5,686,635
Issue date
Nov 11, 1997
Eisai Chemical Co., Ltd.
Kimio Hamamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of quinone derivative
Patent number
5,677,471
Issue date
Oct 14, 1997
Eisai Chemical Co., Ltd.
Kimio Hamamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1,4,4.sub.a 5,8,9.sub.a -hexahydro-1.alpha.,4.alpha.-methanoan-thra...
Patent number
5,608,092
Issue date
Mar 4, 1997
Eisai Chemical Co., Ltd.
Kimio Hamamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Oxidative process for the preparation of allyl quinone derivatives
Patent number
5,565,586
Issue date
Oct 15, 1996
Eisai Chemical Co., Ltd.
Kimio Hamamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of a quinone derivative
Patent number
5,476,955
Issue date
Dec 19, 1995
Eisai Chemical Co., Ltd.
Kimio Hamamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation process of naphthoquinone derivative and intermediate f...
Patent number
5,412,124
Issue date
May 2, 1995
Eisai Chemical Co., Ltd.
Kimio Hamamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Terpene derivatives and process for preparing the same
Patent number
5,245,060
Issue date
Sep 14, 1993
Eisai Co. Ltd.
Kimio Hamamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 2,3,5-trimethylbenzoquinone
Patent number
5,104,996
Issue date
Apr 14, 1992
Eisai Co., Ltd.
Noriyasu Hirose
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Novel vitamin E derivatives and process for the production thereof
Patent number
5,102,895
Issue date
Apr 7, 1992
Eisai Co., Ltd.
Noriyasu Hirose
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Synthesis of optically active d-alpha tocopherol
Patent number
4,433,159
Issue date
Feb 21, 1984
Eisai Co., Ltd.
Kimio Hamamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 2-methyl-3-prenyl-4,5,6-trimethoxyphenol
Patent number
4,163,864
Issue date
Aug 7, 1979
Eisai Co., Ltd.
Eiichi Morita
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyprenyl carboxylic acid compound and hypotensive agent containin...
Patent number
4,130,659
Issue date
Dec 19, 1978
Eisai Co., Ltd.
Shizumasa Kijima
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
5-Fluorouracil derivatives and antitumor preparations containing th...
Patent number
4,130,648
Issue date
Dec 19, 1978
Eisai Co., Ltd.
Shizumasa Kijima
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Polyprenyl carboxylic acid compound
Patent number
4,107,193
Issue date
Aug 15, 1978
Eisai Co., Ltd.
Shizumasa Kijima
C07 - ORGANIC CHEMISTRY