Masayoshi Kuwabara

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Halogen-containing aromatic compound
- Patent number 7,217,827
- Issue date May 15, 2007
- Nippon Shokubai Co., Ltd.
- Masayoshi Kuwabara
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Polyamide acid and polyimide, and optical material
- Patent number 6,924,348
- Issue date Aug 2, 2005
- Nippon Shokubai Co., Ltd.
- Kozo Tajiri
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Halogen-containing aromatic compound
- Patent number 6,916,959
- Issue date Jul 12, 2005
- Nippon Shokubai Co., Ltd.
- Masayoshi Kuwabara
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Halogen-containing aromatic compound
- Publication number 20050090691
- Publication date Apr 28, 2005
- Nippon Shokubai Co., Ltd., a Japan Corporation
- Masayoshi Kuwabara
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Polyamide acid and polyimide, and optical material
- Publication number 20030050407
- Publication date Mar 13, 2003
- Kozo Tajiri
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Halogen-containing aromatic compound
- Publication number 20030018204
- Publication date Jan 23, 2003
- Masayoshi Kuwabara
- C07 - ORGANIC CHEMISTRY