Yusuke Usui

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Chiyoda-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Steel for cold forging/nitriding, steel material for cold forging/n...
- Patent number 9,994,944
- Issue date Jun 12, 2018
- Nippon Steel & Sumitomo Metal Corporation
- Hideki Imataka
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
ROLLED STEEL BAR OR WIRE ROD FOR HOT FORGING
- Publication number 20140363329
- Publication date Dec 11, 2014
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Akira Shiga
- C21 - METALLURGY OF IRON