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Yukio Yamaoka
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Sakai, JP
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last 30 patents
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Patent Grant
High strength steel strand for prestressed concrete and method for...
Patent number
5,762,724
Issue date
Jun 9, 1998
Shinko Kosen Kogyo Kabushiki Kaisha
Yukio Yamaoka
C21 - METALLURGY OF IRON
Information
Patent Grant
Stainless steel wire product
Patent number
5,716,466
Issue date
Feb 10, 1998
Shinko Kosen Kogyo Kabushiki Kaisha
Yukio Yamaoka
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Two-phase stainless steel wire rope having high fatigue resistance...
Patent number
5,545,482
Issue date
Aug 13, 1996
Shinko Kosen Kogyo Kabushiki Kaisha
Yukio Yamaoka
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Steel wire coated with Fe-Zn-Al alloys and method for producing the...
Patent number
5,439,713
Issue date
Aug 8, 1995
Shinko Kosen Kogyo Kabushiki Kaisha
Yukio Yamaoka
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for facilitating distinction between different steel products
Patent number
5,380,407
Issue date
Jan 10, 1995
Shinko Kosen Kogyo Kabushiki Kaisha
Yukio Yamaoka
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
High strength and high toughness steel bar, rod and wire and the pr...
Patent number
4,889,567
Issue date
Dec 26, 1989
Kabushiki Kaisha Kobe Seiko
Tadayoshi Fujiwara
C21 - METALLURGY OF IRON