Masashi Hamba

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Ichihara-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Gas-phase fluidized-bed reactor, multivessel polymerization reactor...
- Patent number 7,955,565
- Issue date Jun 7, 2011
- Sumitomo Chemical Company, Limited
- Masashi Hamba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing olefin polymer
- Patent number 6,710,144
- Issue date Mar 23, 2004
- Sumitomo Chemical Company, Limited
- Masashi Hamba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fluidized bed reactor for gas phase olefin polymerization, process...
- Patent number 6,420,498
- Issue date Jul 16, 2002
- Sumitomo Chemical Company, Limited
- Tsutomu Konaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ethylene-alpha-olefin copolymer and films obtained therefrom
- Patent number 4,981,760
- Issue date Jan 1, 1991
- Sumitomo Chemical Company, Limited
- Yukio Naito
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING OLEFIN POLYMER
- Publication number 20090306314
- Publication date Dec 10, 2009
- Sumitomo Chemical Company, Limited
- Masashi Hamba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Gas-phase fluidized-bed reactor, multivessel polymerization reactor...
- Publication number 20090062586
- Publication date Mar 5, 2009
- Sumitomo Chemical Company,Limited
- Masashi Hamba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for producing olefin polymer
- Publication number 20020128407
- Publication date Sep 12, 2002
- Sumitomo Chemical Company, Limited
- Masashi Hamba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...