Noritaka Takahata

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hollow drilling steel rod and method of manufacturing the same
- Patent number 8,430,977
- Issue date Apr 30, 2013
- Mitsubishi Materials Corporation
- Masaya Hisada
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
HOLLOW DRILLING STEEL ROD AND METHOD OF MANUFACTURING THE SAME
- Publication number 20120211127
- Publication date Aug 23, 2012
- DAIDO STEEL CO., LTD.
- Masaya HISADA
- C21 - METALLURGY OF IRON