Takeshi Ota

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Kashima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Manufacturing method of hot-rolled steel sheet
- Patent number 9,308,563
- Issue date Apr 12, 2016
- Nippon Steel & Sumitomo Metal Corporation
- Takeshi Ota
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...