Hiroyuki Tsuchiyama

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Kikugawa-shi, JP

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Patents Applicationslast 30 patents

Information Patent Application
APPARATUS FOR PRODUCING A HOLLOW POPPET VALVE
- Publication number 20140352385
- Publication date Dec 4, 2014
- Minoru Noguchi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD OF PRODUCING A HOLLOW POPPET VALVE AND AN APPARATUS THEREFOR
- Publication number 20130047433
- Publication date Feb 28, 2013
- Minoru Noguchi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...