Masatomi Harada

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hydrochloride salts of heterocyclic spiro compounds
- Patent number 5,412,096
- Issue date May 2, 1995
- Yamanouchi Pharmaceutical Co., Ltd.
- Shin-ichi Tsukamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heterocyclic spiro compounds and methods for preparing the same
- Patent number RE34653
- Issue date Jul 5, 1994
- Yamanouchi Pharmaceutical Co., Ltd.
- Shin-ichi Tsukamoto
- 546 - Organic compounds
Information Patent Grant
Heterocyclic spiro compounds and methods for preparing the same
- Patent number 5,041,549
- Issue date Aug 20, 1991
- Yamanouchi Pharmaceutical Co., Ltd.
- Shin-ichi Tsukamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heterocyclic spiro compounds and methods for preparing the same
- Patent number 4,996,210
- Issue date Feb 26, 1991
- Yamanouchi Pharmaceutical Co., Ltd.
- Shin-ichi Tsukamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heterocyclic spiro compounds and methods for preparing the same
- Patent number 4,940,795
- Issue date Jul 10, 1990
- Yamanouchi Pharmaceutical Co., Ltd.
- Shin-ichi Tsukamoto
- C07 - ORGANIC CHEMISTRY