Masayuki Natsui

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Kitakata-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Closed forging method, forging production system using the method,...
- Patent number 7,257,981
- Issue date Aug 21, 2007
- Showa Denko K.K.
- Masayuki Natsui
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
PUNCH FOR COLD BACKWARD EXTRUSION FORGING
- Publication number 20130333813
- Publication date Dec 19, 2013
- Showa Denko K.K.
- Masayuki Natsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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...