Yuh Horikawa

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Gifu Prefecture, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of .alpha.-tocopherol
- Patent number 6,020,505
- Issue date Feb 1, 2000
- Eisai Co., Ltd.
- Noriyasu Hirose
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of .alpha.-tocopherol
- Patent number 5,886,197
- Issue date Mar 23, 1999
- Eisai Co., Ltd.
- Noriyasu Hirose
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of .alpha.-tocopherol
- Patent number 5,663,376
- Issue date Sep 2, 1997
- Eisai Co., Ltd.
- Noriyasu Hirose
- C07 - ORGANIC CHEMISTRY