Takafumi Nakahara

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Kitakata-shi, JP

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Patents Applicationslast 30 patents

Information Patent Application
Closed forging metod, forging production system using the method, f...
- Publication number 20040093926
- Publication date May 20, 2004
- Masayuki Natsui
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Metal-casting method and apparatus, casting system and cast-forging...
- Publication number 20020170700
- Publication date Nov 21, 2002
- Shigeru Yanagimoto
- B22 - CASTING POWDER METALLURGY