Hideki Otaka

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing internal combustion engine piston
- Patent number 7,421,782
- Issue date Sep 9, 2008
- Riken Forge Co., Ltd.
- Hideki Otaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Method for manufacturing internal combustion engine piston
- Publication number 20050283976
- Publication date Dec 29, 2005
- Riken Forge Co., Ltd.
- Hideki Otaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR