Koji Hamada

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Kudamatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Shape member manufacturing apparatus and shape member manufacturing...
- Patent number 7,171,735
- Issue date Feb 6, 2007
- Hitachi, Ltd.
- Osamu Okafuji
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Friction stir welding method
- Patent number 6,997,369
- Issue date Feb 14, 2006
- Hitachi, Ltd.
- Koji Hamada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Shape member manufacturing apparatus and shape member manufacturing...
- Publication number 20070074382
- Publication date Apr 5, 2007
- Osamu Okafuji
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Shape member manufacturing apparatus and shape member manufacturing...
- Publication number 20060059671
- Publication date Mar 23, 2006
- Osamu Okafuji
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Friction stir welding method
- Publication number 20040195293
- Publication date Oct 7, 2004
- Koji Hamada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR