Ryuichi Ishikawa

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Sakai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Organic sulfide compound and method for production thereof
- Patent number 5,959,147
- Issue date Sep 28, 1999
- Nippon Shokubai Co., Ltd.
- Norihiro Wakao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of recovering and dehydrating ethylene sulfide
- Patent number 5,833,813
- Issue date Nov 10, 1998
- Nippon Shokubai Co., Ltd.
- Hitoshi Yano
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for manufacturing thiol compounds
- Patent number 5,821,382
- Issue date Oct 13, 1998
- Nippon Shokubai Co., Ltd.
- Youichi Hino
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing alkylene sulfide
- Patent number 5,763,620
- Issue date Jun 9, 1998
- Youichi Hino
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing modified polyaminoamide, modified polyaminoam...
- Patent number 5,478,912
- Issue date Dec 26, 1995
- Nippon Shokubai Co., Ltd.
- Kazumasa Kimura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing alkylene sulfides
- Patent number 5,304,656
- Issue date Apr 19, 1994
- Nippon Shokubai Co., Ltd.
- Hitoshi Yano
- C07 - ORGANIC CHEMISTRY