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last 30 patents
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Patent Grant
Hot-rolled steel sheet for electric resistance welded steel pipe an...
Patent number
12,139,780
Issue date
Nov 12, 2024
JFE Steel Corporation
Akihide Matsumoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Metal pipe and method for manufacturing metal pipe
Patent number
11,945,020
Issue date
Apr 2, 2024
JFE Steel Corporation
Akihide Matsumoto
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Clad welded pipe or tube and method of producing same
Patent number
11,484,927
Issue date
Nov 1, 2022
JFE Steel Corporation
Takatoshi Okabe
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electric resistance welded clad steel pipe or tube and method of pr...
Patent number
11,079,045
Issue date
Aug 3, 2021
JFE Steel Corporation
Shinsuke Ide
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High strength thick-walled electric-resistance-welded steel pipe fo...
Patent number
11,053,564
Issue date
Jul 6, 2021
JFE Steel Corporation
Sota Goto
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High strength thick-walled electric-resistance-welded steel pipe fo...
Patent number
11,041,223
Issue date
Jun 22, 2021
JFE Steel Corporation
Sota Goto
C21 - METALLURGY OF IRON
Information
Patent Grant
Electric-resistance-welded stainless clad steel pipe or tube
Patent number
10,844,993
Issue date
Nov 24, 2020
JFE Steel Corporation
Shinsuke Ide
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of monitoring manufacturing status of electric resistance we...
Patent number
10,744,589
Issue date
Aug 18, 2020
JFE Steel Corporation
Toshifumi Kodama
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of producing electric-resistance-welded stainless clad steel...
Patent number
10,724,670
Issue date
Jul 28, 2020
JFE Steel Corporation
Shinsuke Ide
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electric resistance welded steel pipe and manufacturing method ther...
Patent number
10,584,405
Issue date
Mar 10, 2020
JFE Steel Corporation
Shunsuke Toyoda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Heavy wall electric resistance welded steel pipe for line pipe and...
Patent number
10,385,417
Issue date
Aug 20, 2019
JFE Steel Corporation
Sota Goto
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electric resistance welded steel pipe or steel tube having excellen...
Patent number
9,873,164
Issue date
Jan 23, 2018
JFE Steel Corporation
Shunsuke Toyoda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-strength thick-walled electric resistance welded steel pipe ha...
Patent number
9,841,124
Issue date
Dec 12, 2017
JFE Steel Corporation
Shunsuke Toyoda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-strength electric-resistance-welded steel pipe of excellent lo...
Patent number
9,551,047
Issue date
Jan 24, 2017
JFE Steel Corporation
Shunsuke Toyoda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of manufacturing electric resistance welding pipe having exc...
Patent number
9,000,320
Issue date
Apr 7, 2015
JFE Steel Corporation
Kazuhito Kenmochi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of manufacturing electric resistance welding pipes having ex...
Patent number
8,912,462
Issue date
Dec 16, 2014
JFE Steel Corporation
Kazuhito Kenmochi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electric resistance welded steel pipe with excellent weld toughness...
Patent number
8,328,957
Issue date
Dec 11, 2012
JFE Steel Corporation
Hiroyasu Yokoyama
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Manufacturing equipment for electric resistance welding pipes havin...
Patent number
8,296,932
Issue date
Oct 30, 2012
JFE Steel Corporation
Kazuhito Kenmochi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Measurement method and device for bead cutting shape in electric re...
Patent number
7,619,750
Issue date
Nov 17, 2009
JFE Steel Corporation
Toshifumi Kodama
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-workability steel pipe and method of producing same
Patent number
7,591,914
Issue date
Sep 22, 2009
JFE Steel Corporation
Takaaki Toyooka
C21 - METALLURGY OF IRON
Information
Patent Grant
Measurement method and device for bead cutting shape in electric re...
Patent number
7,471,400
Issue date
Dec 30, 2008
JFE Steel Corporation
Toshifumi Kodama
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and instrument for measuring bead cutting shape of electric...
Patent number
7,236,255
Issue date
Jun 26, 2007
JFE Steel Corporation
Toshifumi Kodama
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Steel pipe for use in reinforcement of automobile and method for pr...
Patent number
7,018,488
Issue date
Mar 28, 2006
JFE Steel Corporation
Takaaki Toyooka
C21 - METALLURGY OF IRON
Information
Patent Grant
Impeder for manufacturing welded pipe
Patent number
6,949,728
Issue date
Sep 27, 2005
JFE Steel Corporation
Takaaki Toyooka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Stainless steel tube for automobile structure
Patent number
6,755,919
Issue date
Jun 29, 2004
JFE Steel Corporation
Takaaki Toyooka
C21 - METALLURGY OF IRON
Information
Patent Grant
Welded steel pipe having excellent hydroformability and method for...
Patent number
6,749,954
Issue date
Jun 15, 2004
JFE Steel Corporation
Takaaki Toyooka
C21 - METALLURGY OF IRON
Information
Patent Grant
High carbon steel pipe excellent in cold formability and high frequ...
Patent number
6,736,910
Issue date
May 18, 2004
JFE Steel Corporation
Takaaki Toyooka
C21 - METALLURGY OF IRON
Information
Patent Grant
Welded steel pipe having excellent hydroformability and method for...
Patent number
6,723,453
Issue date
Apr 20, 2004
JFE Steel Corporation
Takaaki Toyooka
C21 - METALLURGY OF IRON
Information
Patent Grant
Welded steel pipe having excellent hydroformability and method for...
Patent number
6,682,829
Issue date
Jan 27, 2004
JFE Steel Corporation
Takaaki Toyooka
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel pipe having high ductility and high strength and process for...
Patent number
6,331,216
Issue date
Dec 18, 2001
Kawasaki Steel Corporation
Takaaki Toyooka
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR PRODUCING THE...
Publication number
20240229200
Publication date
Jul 11, 2024
JFE STEEL CORPORATION
Akihide MATSUMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
TIG WELDED JOINT
Publication number
20240227088
Publication date
Jul 11, 2024
JFE STEEL CORPORATION
Kazufumi WATANABE
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
GAS-SHIELDED ARC WELDING METHOD, WELDED JOINT, AND WELDED JOINT PRO...
Publication number
20240149365
Publication date
May 9, 2024
JFE STEEL CORPORATION
Atsushi Ishigami
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
TIG WELDED JOINT
Publication number
20240131632
Publication date
Apr 25, 2024
JFE STEEL CORPORATION
Kazufumi WATANABE
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
TIG WELDING FILLER METAL AND METHOD FOR PRODUCING WELD JOINT USING...
Publication number
20240075560
Publication date
Mar 7, 2024
JFE STEEL CORPORATION
Kazufumi Watanabe
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SUBMERGED ARC WELDED JOINT
Publication number
20240051070
Publication date
Feb 15, 2024
JFE STEEL CORPORATION
Kazufumi WATANABE
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SUBMERGED ARC WELDING WIRE AND METHOD FOR PRODUCING WELD JOINT USIN...
Publication number
20240033861
Publication date
Feb 1, 2024
JFE STEEL CORPORATION
Kazufumi Watanabe
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HOT-ROLLED STEEL SHEET FOR ELECTRIC RESISTANCE WELDED STEEL PIPE AN...
Publication number
20220396856
Publication date
Dec 15, 2022
JFE STEEL CORPORATION
Akihide Matsumoto
C21 - METALLURGY OF IRON
Information
Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE, METHOD FOR PRODUCING THE SAM...
Publication number
20220373108
Publication date
Nov 24, 2022
JFE STEEL CORPORATION
Akihide Matsumoto
C21 - METALLURGY OF IRON
Information
Patent Application
METAL PIPE AND METHOD FOR MANUFACTURING METAL PIPE
Publication number
20220168795
Publication date
Jun 2, 2022
JFE STEEL CORPORATION
Akihide MATSUMOTO
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
ELECTRIC-RESISTANCE-WELDED STAINLESS CLAD STEEL PIPE OR TUBE
Publication number
20200224813
Publication date
Jul 16, 2020
JFE STEEL CORPORATION
Shinsuke IDE
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ELECTRIC-RESISTANCE-WELDED STAINLESS CLAD STEEL PIPE OR TUBE AND ME...
Publication number
20190219218
Publication date
Jul 18, 2019
JFE STEEL CORPORATION
Shinsuke IDE
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ELECTRIC RESISTANCE WELDED CLAD STEEL PIPE OR TUBE AND METHOD OF PR...
Publication number
20190186655
Publication date
Jun 20, 2019
JFE STEEL CORPORATION
Shinsuke IDE
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
CLAD WELDED PIPE OR TUBE AND METHOD OF PRODUCING SAME
Publication number
20190184437
Publication date
Jun 20, 2019
JFE STEEL CORPORATION
Takatoshi OKABE
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ELECTRIC RESISTANCE WELDED STAINLESS CLAD STEEL PIPE AND METHOD OF...
Publication number
20180243809
Publication date
Aug 30, 2018
JFE STEEL CORPORATION
Takatoshi Okabe
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF MONITORING MANUFACTURING STATUS OF ELECTRIC RESISTANCE WE...
Publication number
20180104763
Publication date
Apr 19, 2018
JFE STEEL CORPORATION
Toshifumi Kodama
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
HIGH-STRENGTH ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR...
Publication number
20180030557
Publication date
Feb 1, 2018
JFE STEEL CORPORATION
Sota Goto
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH STRENGTH THICK-WALLED ELECRIC-RESISTANCE-WELDED STEEL PIPE FOR...
Publication number
20170369962
Publication date
Dec 28, 2017
JFE STEEL CORPORATION
Sota GOTO
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH STRENGTH THICK-WALLED ELECTRIC-RESISTANCE-WELDED STEEL PIPE FO...
Publication number
20170362678
Publication date
Dec 21, 2017
JFE STEEL CORPORATION
Sota GOTO
C21 - METALLURGY OF IRON
Information
Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE AND MANUFACTURING METHOD THER...
Publication number
20170356071
Publication date
Dec 14, 2017
JFE STEEL CORPORATION
Shunsuke TOYODA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HEAVY WALL ELECTRIC RESISTANCE WELDED STEEL PIPE FOR LINE PIPE AND...
Publication number
20160153063
Publication date
Jun 2, 2016
JFE STEEL CORPORATION
Sota Goto
C21 - METALLURGY OF IRON
Information
Patent Application
OPEN-PIPE WELD SHIELDING SYSTEM FOR ELECTRIC RESISTANCE WELDED STEE...
Publication number
20160045974
Publication date
Feb 18, 2016
JFE STEEL CORPORATION
Takatoshi OKABE
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HOT-ROLLED STEEL SHEET FOR HIGH STRENGTH LINEPIPE HAVING TENSILE ST...
Publication number
20150368737
Publication date
Dec 24, 2015
JFE STEEL CORPORATION
Sota GOTO
C21 - METALLURGY OF IRON
Information
Patent Application
Electric Resistance Welded Steel Pipe
Publication number
20150368768
Publication date
Dec 24, 2015
JFE STEEL CORPORATION
Masatoshi ARATANI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HOT-ROLLED STEEL SHEET FOR HIGH STRENGTH LINEPIPE
Publication number
20150368736
Publication date
Dec 24, 2015
JFE STEEL CORPORATION
Sota GOTO
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-CARBON STEEL TUBE HAVING SUPERIOR COLD WORKABILITY, MACHINABIL...
Publication number
20150275339
Publication date
Oct 1, 2015
JFE STEEL CORPORATION
Masatoshi Aratani
C21 - METALLURGY OF IRON
Information
Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE OR STEEL TUBE HAVING EXCELLEN...
Publication number
20150251268
Publication date
Sep 10, 2015
JFE STEEL CORPORATION
Shunsuke Toyoda
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH ELECTRIC-RESISTANCE-WELDED STEEL PIPE OF EXCELLENT LO...
Publication number
20150203933
Publication date
Jul 23, 2015
JFE STEEL CORPORATION
Shunsuke Toyoda
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH THICK-WALLED ELECTRIC RESISTANCE WELDED STEEL PIPE HA...
Publication number
20150083266
Publication date
Mar 26, 2015
JFE STEEL CORPORATION
Shunsuke Toyoda
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE WITH EXCELLENT TORSION FATIGU...
Publication number
20130126036
Publication date
May 23, 2013
JFE STEEL CORPORATION
Masatoshi Aratani
C21 - METALLURGY OF IRON