Toshihiko Toma

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for purifying a fluorinated hydroxyl compound
- Patent number 6,992,229
- Issue date Jan 31, 2006
- Asahi Glass Company, Limited
- Hidekazu Okamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for purifying a fluorinated hydroxyl compound
- Patent number 6,930,212
- Issue date Aug 16, 2005
- Asahi Glass Company, Limited
- Hidekazu Okamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing fluorine-containing silicone compound
- Patent number 5,914,422
- Issue date Jun 22, 1999
- Asahi Glass Company Ltd.
- Yutaka Furukawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for producing flourine-containing silicone compound
- Patent number 5,728,903
- Issue date Mar 17, 1998
- Asahi Glass Company Ltd.
- Yutaka Furukawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for producing fluorine-containing silicone compound
- Patent number 5,663,399
- Issue date Sep 2, 1997
- Asahi Glass Company Ltd.
- Yutaka Furukawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Method for purifying a fluorinated hydroxyl compound
- Publication number 20030069454
- Publication date Apr 10, 2003
- ASAHI GLASS COMPANY LIMITED
- Hidekazu Okamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for purifying a fluorinated hydroxyl compound
- Publication number 20020115893
- Publication date Aug 22, 2002
- ASAHI GLASS COMPANY LIMITED
- Hidekazu Okamoto
- C07 - ORGANIC CHEMISTRY