Kohichi Yamamoto

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
High-strength H-beam steel exhibiting excellent low-temperature tou...
- Patent number 9,644,372
- Issue date May 9, 2017
- Nippon Steel & Sumitomo Metal Corporation
- Kazutoshi Ichikawa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
H-SECTION STEEL AND METHOD OF PRODUCING THE SAME
- Publication number 20150361664
- Publication date Dec 17, 2015
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Kazutoshi ICHIKAWA
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH H-BEAM STEEL EXHIBITING EXCELLENT LOW-TEMPERATURE TOU...
- Publication number 20140301888
- Publication date Oct 9, 2014
- Kazutoshi Ichikawa
- C21 - METALLURGY OF IRON