Takuma Aoyama

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Ichihara-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Styrene resin composition and method of manufacturing the same, and...
- Patent number 6,706,786
- Issue date Mar 16, 2004
- Idemitsu Petrochemical Co., Ltd.
- Akihiko Okada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Molding material, process for producing molded article, and molded...
- Patent number 6,635,712
- Issue date Oct 21, 2003
- Idemitsu Petrochemical Co., Ltd.
- Takuma Aoyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Styrene resin composition and method of manufacturing the same, and...
- Patent number 6,469,098
- Issue date Oct 22, 2002
- Idemitsu Petrochemical Co., Ltd.
- Akihiko Okada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Styrene resin composition and method of manufacturing the same, and...
- Patent number 6,169,146
- Issue date Jan 2, 2001
- Idemitsu Petrochemical Co., Ltd.
- Akihiko Okada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Styrenic polymer and molded article
- Patent number 5,698,652
- Issue date Dec 16, 1997
- Idemitsu Petrochemical Co., Ltd.
- Takuma Aoyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Chemical-resitant polystyrene resin compositon and molded article
- Publication number 20040152838
- Publication date Aug 5, 2004
- Akihiko Okada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Styrene polymer composition and molded article obtained therefrom
- Publication number 20040116583
- Publication date Jun 17, 2004
- Akihiko Okada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Styrene resin composition and method of manufacturing the same, and...
- Publication number 20030139528
- Publication date Jul 24, 2003
- IDEMITSU PETROCHEMICAL CO., LTD.
- Akihiko Okada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...