Chiaki Seki

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Aichi, JP

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Patents Grantslast 30 patents

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