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Hideaki Kageyama
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Kitakyushu, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Pearlitic steel rail having excellent wear resistance and method of...
Patent number
RE42668
Issue date
Sep 6, 2011
Nippon Steel Corporation
Masaharu Ueda
148 - Metal treatment
Information
Patent Grant
Pearlitic steel rail having excellent wear resistance and method of...
Patent number
RE42360
Issue date
May 17, 2011
Nippon Steel Corporation
Masaharu Ueda
148 - Metal treatment
Information
Patent Grant
Pearlitic steel rail having excellent wear resistance and method of...
Patent number
RE41033
Issue date
Dec 8, 2009
Nippn Steel Corporation
Masaharu Ueda
148 - Metal treatment
Information
Patent Grant
Pearlitic steel rail having excellent wear resistance and method of...
Patent number
RE40263
Issue date
Apr 29, 2008
Nippon Steel Corporation
Masaharu Ueda
148 - Metal treatment
Information
Patent Grant
Pearlitic steel rail having excellent wear resistance and method of...
Patent number
5,762,723
Issue date
Jun 9, 1998
Nippon Steel Corporation
Masaharu Ueda
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for manufacturing high-strength bainitic steel rails with e...
Patent number
5,382,307
Issue date
Jan 17, 1995
Nippon Steel Corporation
Hideaki Kageyama
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of and apparatus for heat-treating rails
Patent number
4,913,747
Issue date
Apr 3, 1990
Nippon Steel Corporation
Keiji Fukuda
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing high strength rail of excellent weldability
Patent number
4,426,236
Issue date
Jan 17, 1984
Nippon Steel Corporation
Kazuo Sugino
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing high strength rail of excellent weldability
Patent number
4,375,995
Issue date
Mar 8, 1983
Nippon Steel Corporation
Kazuo Sugino
C21 - METALLURGY OF IRON