Hiroyuki Hasegawa

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Sakai, JP

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Patents Grantslast 30 patents

Information Patent Grant
High-strength, high-toughness rolled shape steel and method of prod...
- Patent number 6,364,967
- Issue date Apr 2, 2002
- Nippon Steel Corporation
- Kouichi Yamamoto
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus for cooling thin-webbed H-beam steel
- Patent number 5,259,229
- Issue date Nov 9, 1993
- Nippon Steel Corporation
- Akira Inagaki
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing thin-webbed H-beam steel
- Patent number 5,191,778
- Issue date Mar 9, 1993
- Nippon Steel Corporation
- Akira Inagaki
- C21 - METALLURGY OF IRON