Hajime Nakasugi

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Kisarazu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing a high tension steel sheet product having an...
- Patent number RE31251
- Issue date May 24, 1983
- Nippon Steel Corporation
- Hajime Nakasugi
- 148 - Metal treatment
Information Patent Grant
Process for producing high-tension bainitic steel having high-tough...
- Patent number 4,219,371
- Issue date Aug 26, 1980
- Nippon Steel Corporation
- Hajime Nakasugi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of heat-treatment of welded pipe and apparatus therefor
- Patent number 4,142,713
- Issue date Mar 6, 1979
- Nippon Steel Corporation
- Hajime Nakasugi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing a steel sheet having remarkably excellent toug...
- Patent number 4,138,278
- Issue date Feb 6, 1979
- Nippon Steel Corporation
- Hajime Nakasugi
- C21 - METALLURGY OF IRON
Information Patent Grant
Induction heating method of steel pipe
- Patent number 4,115,675
- Issue date Sep 19, 1978
- Nippon Steel Corporation
- Katsuhiko Narihara
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing a high tension steel sheet product having an...
- Patent number 4,105,474
- Issue date Aug 8, 1978
- Nippon Steel Corporation
- Hajime Nakasugi
- C21 - METALLURGY OF IRON