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Yasuo Otoguro
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Machida, JP
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last 30 patents
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Patent Grant
High-strength heat-resisting ferritic steel pipe and tube
Patent number
4,844,755
Issue date
Jul 4, 1989
Nippon Steel Corporation
Katukuni Hashimoto
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
High Al heat-resistant alloy steels having Al coating thereon
Patent number
4,535,034
Issue date
Aug 13, 1985
Nippon Steel Corporation
Takashi Zaizen
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Highly buildup-resistant hearth roll for conveying a steel strip th...
Patent number
4,470,802
Issue date
Sep 11, 1984
Nippon Steel Corporation
Takashi Zaizen
C21 - METALLURGY OF IRON
Information
Patent Grant
Boiler tube having improved high temperature mechanical strength, i...
Patent number
4,463,061
Issue date
Jul 31, 1984
Nippon Steel Corporation
Yasuo Otoguro
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Ferritic heat-resisting steel with an excellent toughness
Patent number
4,405,369
Issue date
Sep 20, 1983
Nippon Steel Corporation
Yasuo Otoguro
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Stainless steel products, such as sheets and pipes, having a surfac...
Patent number
4,175,163
Issue date
Nov 20, 1979
Nippon Steel Corporation
Teruo Ikeno
B22 - CASTING POWDER METALLURGY