Yoichi Hasegawa

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Sakaide, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of tertiary butyl hydrazine hydrohaloge...
- Patent number 5,731,465
- Issue date Mar 24, 1998
- Japan Hydrazine Co., Ltd.
- Yoichi Hasegawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of monomethylhydrazine
- Patent number 4,855,501
- Issue date Aug 8, 1989
- Japan Hydrazine Co., Inc.
- Shiro Hojo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of tertiary butyl hydrazine
- Patent number 4,435,600
- Issue date Mar 6, 1984
- Japan Hydrazine Co., Inc.
- Yoichi Hasegawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing inorganic acid salts of tertiary butyl hydrazine
- Patent number 4,310,696
- Issue date Jan 12, 1982
- Japan Hydrazine Co., Inc.
- Shiro Hojo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing methylhydrazines
- Patent number 4,281,198
- Issue date Jul 28, 1981
- Japan Hydrazine Co., Inc.
- Shiro Hojo
- C07 - ORGANIC CHEMISTRY