Hiroshi Yokogawa

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Handa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Thick-walled high-strength seamless steel pipe with excellent sour...
- Patent number 9,932,651
- Issue date Apr 3, 2018
- JFE Steel Corporation
- Yasuhide Ishiguro
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
THICK-WALLED HIGH-STRENGTH SEAMLESS STEEL PIPE WITH EXCELLENT SOUR...
- Publication number 20140137992
- Publication date May 22, 2014
- JFE STEEL CORPORATION
- Yasuhide Ishiguro
- C21 - METALLURGY OF IRON