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Hisashi Naoi
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Futtsu, JP
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last 30 patents
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Patent Grant
High strength, ferritic heat-resistant steel having improved resist...
Patent number
5,772,956
Issue date
Jun 30, 1998
Nippon Steel Corporation
Yasushi Hasegawa
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
Liquid-phase diffusion bonding alloy foils for joining heat-resista...
Patent number
5,759,300
Issue date
Jun 2, 1998
Nippon Steel Corporation
Yasushi Hasegawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Liquid-phase diffusion bonding alloy foils for joining heat-resista...
Patent number
5,683,822
Issue date
Nov 4, 1997
Nippon Steel Corporation
Yasushi Hasegawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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
Information
Patent Grant
High-nitrogen ferritic heat-resisting steel with high vanadium cont...
Patent number
5,268,142
Issue date
Dec 7, 1993
Nippon Steel Corporation
Yasushi Hasegawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
High-nitrogen ferritic heat-resisting steel with high niobium conte...
Patent number
5,254,307
Issue date
Oct 19, 1993
Nippon Steel Corporation
Yasushi Hasegawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...