Shinji Tokunaga

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Yamaguchi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of treating fumed silica-containing drainage water
- Patent number 7,988,866
- Issue date Aug 2, 2011
- Tokuyama Corporation
- Shinji Tokunaga
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of treating silicon powder-containing drainage water
- Patent number 7,988,867
- Issue date Aug 2, 2011
- Tokuyama Corporation
- Shinji Tokunaga
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Silica-loaded granular rubber and process for producing the same
- Patent number 7,625,971
- Issue date Dec 1, 2009
- Tokuyama Corporation
- Shinji Tokunaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fluorine-containing resin molded articles
- Patent number 5,712,040
- Issue date Jan 27, 1998
- Tokuyama Corporation
- Akihiko Nakahara
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Method of treating silicon powder-containing drainage water
- Publication number 20090242491
- Publication date Oct 1, 2009
- Shinji Tokunaga
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Method of Treating Fumed Silica-Containing Drainage Water
- Publication number 20080264871
- Publication date Oct 30, 2008
- Tokuyana Corporation
- Shinji Tokunaga
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Silica-loaded granular rubber and process for producing the same
- Publication number 20060281850
- Publication date Dec 14, 2006
- Tokuyama Corporation
- Shinji Tokunaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Rubber composition containing silica and method for production therof
- Publication number 20060143938
- Publication date Jul 6, 2006
- Takeshi Karato
- B60 - VEHICLES IN GENERAL