Kazuo Ohtsuki

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
14.alpha.-hydroxy-4-androstene-3,6,17-trione hydrate and process fo...
- Patent number 5,648,507
- Issue date Jul 15, 1997
- Nippon Kayaku Kabushiki Kaisha
- Kazuo Ohtsuki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
14.alpha.-hydroxy-4-androstene-3,6,17-trione hydrate crystal and pr...
- Patent number 5,614,651
- Issue date Mar 25, 1997
- Snow Band Milk Products, Co., Ltd.
- Kazuo Ohtsuki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing an optically active aminoketone derivative
- Patent number 5,103,022
- Issue date Apr 7, 1992
- Nippon Kayaku Kabushiki Kaisha
- Akira Shiozawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Derivatives of an aminoketone
- Patent number 5,057,535
- Issue date Oct 15, 1991
- Nippon Kayaku Kabushiki Kaisha
- Akira Shiozawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dihydrate crystals of etoposide-2-dimethylamino compound hydrochlor...
- Patent number 4,997,923
- Issue date Mar 5, 1991
- Nippon Kayaku Kabushiki Kaisha
- Takao Izawa
- C07 - ORGANIC CHEMISTRY