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Kobe, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Steel wire for high strength spring excellent in workability and hi...
Patent number
8,007,716
Issue date
Aug 30, 2011
Kabushiki Kaisha Kobe Seiko Sho
Sumie Suda
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Spring produced by a process comprising coiling a hard drawn steel...
Patent number
7,763,123
Issue date
Jul 27, 2010
Kabushiki Kaisha Kobe Seiko Sho
Sumie Suda
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing high cleanness steel excellent in fatigue stre...
Patent number
7,615,099
Issue date
Nov 10, 2009
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Koichi Sakamoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Spring steel excellent in sag resistance and fatigue property
Patent number
7,615,186
Issue date
Nov 10, 2009
Kobe Steel, Ltd.
Sumie Suda
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing high cleanliness steel excellent in fatigue st...
Patent number
7,608,130
Issue date
Oct 27, 2009
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Koichi Sakamoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel wire for hard drawn spring excellent in fatigue strength and...
Patent number
7,597,768
Issue date
Oct 6, 2009
Kabushiki Kaisha Kobe Seiko Sho
Sumie Suda
C21 - METALLURGY OF IRON
Information
Patent Grant
Ultra clean spring steel
Patent number
7,429,301
Issue date
Sep 30, 2008
Kobe Steel, Ltd.
Tomoko Sugimura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Steel wire rod for hard drawn spring, drawn wire rod for hard drawn...
Patent number
7,074,282
Issue date
Jul 11, 2006
Kabushiki Kaisha Kobe Seiko Sho
Nobuhiko Ibaraki
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
STEEL WIRE FOR HARD DRAWN SPRING EXCELLENT IN FATIGUE STRENGTH AND...
Publication number
20090283181
Publication date
Nov 19, 2009
Kabushiki Kaisha Kobe Seiko Sho
Sumie SUDA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING HIGH CLEANNESS STEEL EXCELLENT IN FATIGUE STRE...
Publication number
20080202289
Publication date
Aug 28, 2008
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD)
Koichi Sakamoto
C21 - METALLURGY OF IRON
Information
Patent Application
Steel for spring being excellent in resistance to setting and fatig...
Publication number
20070163680
Publication date
Jul 19, 2007
Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd)
Sumie Suda
C21 - METALLURGY OF IRON
Information
Patent Application
Steel wire for high strength spring excellent in workability and hi...
Publication number
20060201588
Publication date
Sep 14, 2006
Sumie Suda
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for producing high cleanness steel excellent in fatigue stre...
Publication number
20060156864
Publication date
Jul 20, 2006
Kabushiki Kaisha Kobe Seiko Sho
Koichi Sakamoto
C21 - METALLURGY OF IRON
Information
Patent Application
Ultra clean spring steel
Publication number
20060108027
Publication date
May 25, 2006
Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
Tomoko Sugimura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Steel wire for hard drawn spring excellent in fatigue strength and...
Publication number
20050173028
Publication date
Aug 11, 2005
Sumie Suda
C21 - METALLURGY OF IRON
Information
Patent Application
Steel wire rod for hard drawn spring,drawn wire rod for hard drawn...
Publication number
20030024610
Publication date
Feb 6, 2003
Nobuhiko Ibakaki
C21 - METALLURGY OF IRON