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Patents Grants
last 30 patents
Information
Patent Grant
Ferritic heat-resistant steel having excellent high temperature str...
Patent number
6,136,110
Issue date
Oct 24, 2000
Nippon Steel Corporation
Katsukuni Hashimoto
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
High-strength ferritic heat-resistant steel and method of producing...
Patent number
5,766,376
Issue date
Jun 16, 1998
Nippon Steel Corporation
Yasushi Hasegawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Martensitic heat-resisting steel excellent in HAZ-softening resista...
Patent number
5,650,024
Issue date
Jul 22, 1997
Nippon Steel Corporation
Yasushi Hasegawa
C21 - METALLURGY OF IRON