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Jfe Steel Corporation
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Jfe Steel Corporation patents

Recent patent applications related to Jfe Steel Corporation. Jfe Steel Corporation is listed as an Agent/Assignee. Note: Jfe Steel Corporation may have other listings under different names/spellings. We're not affiliated with Jfe Steel Corporation, we're just tracking patents.

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Date Jfe Steel Corporation patents (updated weekly) - BOOKMARK this page
12/14/17 new patent  Method for producing circumferential weld joint for low-carbon martensitic stainless steel pipes (as amended)
12/14/17 new patent  Electric resistance welded steel pipe and manufacturing method therefor
12/07/17Steel sheet assembly, manufacturing steel sheet assembly, and spot welding process
12/07/17High-strength seamless steel pipe for oil country tubular goods and producing the same (as amendmed)
12/07/17High-strength seamless steel pipe for oil country tubular goods and producing the same (as amended)
12/07/17Method of quenching steel pipe, quenching steel pipe, manufacturing steel pipe and facility for manufacturing steel pipe
12/07/17Iron-based alloy powder for powder metallurgy, and sinter-forged member
12/07/17Stainless steel and production method therefor
12/07/17Ferritic stainless steel and process for producing same
11/30/17Material for laminated iron core, and manufacturing laminated iron core
11/23/17Method of manufacturing steel strip for coiled tubing
11/23/17Method of manufacturing round steel billet
11/23/17Apparatus line for manufacturing seamless steel pipe and tube and manufacturing duplex seamless stainless steel pipe
11/23/17Steel sheet for crown cap, manufacturing method therefor, and crown cap
11/23/17Quantitative analysis device for trace carbon and quantitative analysis trace carbon
11/23/17Method of evaluating hot stamped part and manufacturing hot stamped part
11/16/17Continuous steel casting method
11/16/17High-strength steel sheet, high-strength hot-dip galvanized steel sheet, high-strength hot-dip aluminum-coated steel sheet, and high-strength electrogalvanized steel sheet, and methods for manufacturing same
11/16/17Ferritic stainless steel and process for producing same
11/16/17Method for manufacturing metal sheet and rapid quenching unit
11/16/17Metal strip stabilization manufacturing hot-dip coated metal strip using same
11/09/17Method for manufacturing grain-oriented electrical steel sheet
11/09/17High-strength cold-rolled steel sheet and manufacturing the same
11/02/17Resistance spot welding method
11/02/17Non-oriented electrical steel sheet and manufacturing non-oriented electrical steel sheet
11/02/17High-strength steel sheet and manufacturing same
11/02/17Steel sheet for cans and manufacturing steel sheet for cans
11/02/17Method of manufacturing high strength steel sheet
11/02/17Method for manufacturing steel sheet coated with zinc-based coating layer (as amended)
11/02/17Method for predicting iron loss of non-oriented electrical steel sheet after shearing
10/26/17High-strength steel sheet, high-strength hot-dip galvanized steel sheet, high-strength hot-dip aluminum-coated steel sheet, and high-strength electrogalvanized steel sheet, and methods for manufacturing same
10/26/17Steel sheet for two-piece can and manufacturing method therefor
10/26/17High-strength hot-pressed part and manufacturing the same
10/26/17Cold-rolled steel sheet, manufacturing cold-rolled steel sheet, automobile member and facility for manufacturing cold-rolled steel sheet
10/26/17Steel strip for electric-resistance-welded steel pipe or tube, electric-resistance-welded steel pipe or tube, and process for producing steel strip for electric-resistance-welded steel pipe or tube
10/19/17Material-property-value estimating method, material-property-value estimating device, and steel-strip manufacturing method
10/19/17Low iron loss grain oriented electrical steel sheet and manufacturing the same
10/19/17High-strength steel sheet and manufacturing same
10/12/17Steel sheet for crown cap and producing the same
10/05/17Slurry application device and slurry application method
10/05/17Rail manufacturing method and rail manufacturing apparatus
10/05/17High-strength hot-dip galvanized steel sheet and manufacturing the same (as amended)
10/05/17High-strength seamless steel pipe for oil country tubular goods and producing the same
10/05/17Cold-rolled ferritic stainless steel sheet
09/28/17Non-oriented electrical steel sheet and manufacturing method thereof
09/28/17High-strength seamless steel pipe for oil country tubular goods and producing the same (as amended)
09/28/17Method of manufacturing hot rolled steel sheet for square column for building structural members
09/28/17Ferritic stainless steel sheet
09/28/17Ferritic stainless steel foil and manufacturing the same (as amended)
09/28/17High-strength galvanized steel sheet excellent in stretch-flange formability, in-plane stability of stretch-flange formability, and bendability and manufacturing the same
09/28/17Thick steel plate having good multipass weld joint ctod characteristics and manufacturing the same
09/28/17Hearth roll and continuous annealing facility
09/28/17Material for cold-rolled stainless steel sheet
09/21/17Ferritic stainless steel sheet for plasma arc welding and welding method therefor (as amended)
09/21/17Resin-coated metal sheet for can lids
09/14/17Alloy steel powder for powder metallurgy, and sintered body
09/14/17Non-oriented electrical steel sheet and producing the same, and motor core and producing the same
09/14/17Method of manufacturing grain-oriented electrical steel sheet
09/07/17Grain-oriented electrical steel sheet and process for producing same
09/07/17Method and facility for producing high-strength galavanized steel sheets
08/31/17Method of thermal decomposition of organic substance (as amended)
08/31/17Molten steel desulfurization method, molten steel secondary refining method, and molten steel manufacturing method
08/31/17High-strength galvanized steel sheet
08/24/17Grain oriented electrical steel sheet, manufacturing grain oriented electrical steel sheets, evaluating grain oriented electrical steel sheets, and iron core
08/24/17Method of manufacturing grain-oriented electrical steel sheet
Patent Packs
08/24/17High-strength galvanized steel sheet
08/24/17Non-oriented electrical steel sheet having excellent magnetic properties
08/17/17Head hardened rail manufacturing method and manufacturing apparatus
08/10/17Method of manufacturing hot press-formed part, and hot press-formed part
08/10/17Method for manufacturing grain-oriented electrical steel sheet, and nitriding apparatus
08/10/17Non-oriented electrical steel sheet having excellent magnetic properties
08/03/17Method for manufacturing coke, coke, and evaluating homogeneity of coal blend
08/03/17High-strength steel sheet and production same, and production high-strength galvanized steel sheet
08/03/17High-strength hot rolled steel sheet and manufacturing the same
08/03/17High-strength steel sheet and manufacturing same
08/03/17Steel-strip production apparatus
08/03/17Steel-strip production method, and steel strip
07/27/17Centrifugal cast caliber roll for hot rolling mill (as amended)
07/27/17Non-oriented electrical steel sheet and manufacturing method thereof
07/27/17High-strength steel sheet and production same, and production high-strength galvanized steel sheet
Patent Packs
07/27/17High strength galvanized steel sheet and production method therefor
07/20/17High-strength steel sheet and production same, and production high-strength galvanized steel sheet
07/20/17High-strength steel sheet and manufacturing same
07/20/17Cold-rolled steel sheet having excellent spot weldability, and manufacturing method therefor
07/20/17Coated steel sheet, producing the same, and resin-coated steel sheet obtained using the same
07/20/17Ultrasonic flaw detection apparatus and ultrasonic flaw detection method
07/13/17Steel sheet for cans and manufacturing method thereof
07/13/17Method for analyzing nitrogen in metal sample, analyzing nitrogen in metal sample, adjusting nitrogen concentration in molten steel, and manufacturing steel
07/06/17High-strength hot-dip galvanized steel sheet excellent in formability and producing same
07/06/17Railway vehicle wheel and manufacturing railway vehicle wheel
06/29/17Method for manufacturing hot-rolled steel sheet, steel sheet cutting location setting device, steel sheet cutting location setting method, and steel sheet manufacturing method
06/29/17Thick steel plate and manufacturing the same
06/29/17Ferritic stainless steel and producing same
06/22/17Weld joint
06/22/17Hot rolled and annealed ferritic stainless steel sheet, producing same, and cold rolled and annealed ferritic stainless steel sheet
06/22/17High-strength steel sheet and production same, and production high-strength galvanized steel sheet
06/15/17Press forming method and manufacturing press formed product
06/15/17Galvannealed steel sheet and producing the same (as amended)
06/15/17High-strength hot-dip galvanized steel sheet and producing same
06/15/17Test sulfide stress corrosion cracking of steel and seamless steel pipe having excellent resistance to sulfide stress corrosion cracking
06/08/17Method for manufacturing high-strength galvanized steel sheet
06/08/17Electrical steel sheet provided with insulating coating
06/01/17Method for manufacturing high-strength galvanized steel sheet (as amended)
05/25/17Method of producing atomized metal powder
05/25/17High-yield-ratio high-strength cold-rolled steel sheet and producing the same
05/18/17Treatment solution for chromium-free insulating coating for grain-oriented electrical steel sheet and grain-oriented electrical steel sheet coated with chromium-free insulating coating
05/18/17Coal mixture, manufacturing coal mixture, and manufacturing coke
05/18/17High-tensile-strength steel plate and process for producing same
05/11/17High-strength galvanized steel sheet having excellent formability and crashworthiness and manufacturing the same
05/11/17Method of producing galvannealed steel sheet
Social Network Patent Pack
05/04/17Primary recrystallization annealed sheet for grain-oriented electrical steel sheet production, and producing grain-oriented electrical steel sheet
05/04/17High-carbon hot-rolled steel sheet and manufacturing the same
05/04/17High-carbon hot-rolled steel sheet and manufacturing the same
05/04/17Surface defect detecting method and surface defect detecting apparatus
04/27/17Resistance spot welding device and resistance spot welding method
04/27/17Electrical steel sheet for stacking, stacked electrical steel sheet, manufacturing stacked electrical steel sheet, and iron core for automotive motor
04/20/17Coiler device provided with chute roller
04/20/17Coiler device provided with chute guide
04/20/17Coiler device and gate device provided with guide unit
04/20/17High-yield-ratio, high-strength cold-rolled steel sheet and production method therefor
Patent Packs
04/20/17Steel sheet for can and manufacturing the same
04/13/17Rail and manufacturing same
04/06/17High-strength seamless stainless steel pipe for oil country tubular goods and manufacturing the same
03/30/17Ferritic stainless steel and production method therefor (as amended)
03/30/17High toughness and high tensile strength thick steel plate and production method therefor
03/30/17Method for producing grain-oriented electrical steel sheet
03/30/17Thick-walled high-strength hot rolled steel sheet having excellent hydrogen induced cracking resistance and manufacturing method thereof
03/23/17Method for producing grain-oriented electrical steel sheet
03/16/17Ferritic stainless steel
03/16/17Ferritic stainless steel
03/09/17High-strength steel sheet and manufacturing high-strength steel sheet
03/02/17Stainless steel for fuel cell separators
02/23/17High-strength steel sheet for containers and producing the same
02/23/17High-strengh steel sheet and method sheet for manufacturing the same
02/16/17Method for manufacturing hot press forming part and hot press forming part
02/16/17Steel plate and producing same
02/16/17Method for producing high-strength galvanized steel sheet and high-strength galvannealed steel sheet (as amended)
02/09/17High-strength hot-dip galvanized steel sheet and producing the same
02/02/17Press forming method, and manufacturing press-formed part
02/02/17Ferritic stainless steel foil and producing the same (as amended)
02/02/17Method for producing a cold-rolled flat steel product with high yield strength and flat cold-rolled steel product
02/02/17Stainless-steel foil for separator of polymer electrolyte fuel cell
01/26/17Seamless steel tube for fuel injection
01/26/17High-strength cold-rolled steel sheet with excellent material homogeneity and production method therefor
01/26/17Steel material for highly deformable line pipes having superior strain aging resistance and superior hic resistance, manufacturing same, and welded steel pipe
01/26/17Steel material for highly deformable line pipes having superior strain aging resistance and superior hic resistance, manufacturing same, and welded steel pipe
01/26/17Surface inspection method, surface inspection device, manufacturing system, identifying defect formed area, and manufacturing steel pipe
01/19/17Press forming method and manufacturing pressed product as well as press forming apparatus
01/19/17Grain-oriented electrical steel sheet for low-noise transformer, and manufacturing said sheet
01/19/17Iron powder for iron powder cores and selecting iron powder for iron powder cores
Patent Packs
01/12/17Resin-coated metal sheet for containers and manufacturing the same
01/12/17High-strength hot-rolled steel sheet and manufacturing the same (as amended)
01/12/17Method and measuring corrosion of mobile body
12/22/16Material for cold-rolled stainless steel sheet and production method therefor (as amended)
12/22/16High-strength cold-rolled steel sheet and manufacturing the same (as amended)
12/22/16Galvanized steel sheet and producing the same (as amended)
12/15/16High-strength steel sheet and manufacturing the same
12/15/16Steel sheet for crown cap, manufacturing same, and crown cap
12/15/16Method for controlling dew point of reduction furnace, and reduction furnace
12/15/16Stress corrosion crack test method in alcohol environment
12/08/16Press molding method, manufacturing press-molded component, and determining preform shape for use in said methods
12/08/16Resin-coated metal sheet for container and manufacturing the same
12/01/16Abrasion-resistant steel plate and manufacturing the same
12/01/16Non-oriented electrical steel sheet having excellent magnetic properties
11/24/16Cold rolling facility and cold rolling method
11/24/16Method for suppressing rear face oxidation of carbon-containing refractory, lining structure, and carbon-containing refractory
11/17/16Cold rolling apparatus
11/17/16Grain oriented electrical steel sheet and production method therefor
11/17/16Ferritic stainless steel and production method therefor
11/17/16Threaded joint for tube
Social Network Patent Pack
11/10/16Method for operation of blast furnace
11/03/16High-strength galvanized steel sheet and manufacturing the same
11/03/16Method for producing grain-oriented electrical steel sheet
11/03/16Threaded joint for heavy-walled oil country tubular goods
10/27/16Steel plate and manufacturing same (as amended)
10/27/16High-strength steel sheet and producing the same (as amended)
10/20/16Iron powder for dust cores
10/20/16Method for producing high-strength galvannealed steel sheets
10/20/16Treatment solution for chromium-free tension coating, forming chromium-free tension coating, and grain oriented electrical steel sheet with chromium-free tension coating
10/13/16Bake- hardening galvanized steel sheet
10/06/16High-strength steel sheet and manufacturing the same
10/06/16Ferrite-martensite dual-phase stainless steel and manufacturing the same
10/06/16Hot-rolled steel sheet and manufacturing the same
10/06/16Method of manufacturing a steel sheet for containers
10/06/16Continuous annealing furnace for annealing steel strip, continuously annealing steel strip, continous hot-dip galvanizing facility, and manufacturing hot-dip galvanized steel strip
09/29/16Stainless steel sheet
09/22/16Resistance spot welding method
09/22/16Resistance spot welding method
09/22/16Grain oriented electrical steel sheet and manufacturing the same
09/15/16Method for production of two-piece can
Social Network Patent Pack
09/15/16Friction stir welding high-strength steel sheets or plates
09/15/16Equipment line for manufacturing seamless steel tube or pipe and manufacturing high-strength stainless steel seamless tube or pipe for oil wells using the equipment line
09/15/16Continuous annealing system and continuous annealing method
09/08/16Laminated metal sheet for containers, producing metal can, and evaluating formability of metal sheet (as amended)
09/08/16High-strength hot-rolled steel sheet and producing the same
09/08/16Grain-oriented electrical steel sheet having excellent magnetic characteristics and coating adhesion
09/01/16Indirect spot welding apparatus
08/25/16Method of producing polygonal closed cross-section structural component with a curved form and polygonal closed cross-section structural component produced by the method
08/25/16Method of sheet forming
08/25/16Steel material having excellent alcohol-induced pitting corrosion resistance and alcohol-induced scc resistance
08/18/16Equipment line for manufacturing heavy-walled steel products
08/18/16Resistance spot welding method
08/18/16Stainless steel foil for separators of polymer electrolyte fuel cells
08/11/16Friction stir welding structural steel and manufacturing joint for structural steel
08/11/16Electromagnetic steel sheet with insulating coating film, producing same, and coating agent that forms the insulating coating film
08/11/16Grain-oriented electrical steel sheet and manufacturing same (as amended)
08/11/16Hot-dip galvanized steel sheets and galvannealed steel sheets that have good appearance and adhesion to coating and methods for producing the same (as amended)
08/04/16Friction stir welding steel sheets and manufacturing joint
08/04/16Steel for spring, and producing spring
08/04/16Hot-dip galvanized steel sheets and galvannealed steel sheets that have good appearance and adhesion to coating and methods for producing the same (as amended)
07/28/16Alloy steel powder for powder metallurgy and producing iron-based sintered body
07/28/16Friction stir welding steel sheets and manufacturing joint
07/28/16High-strength galvanized steel sheet and manufacturing the same
07/28/16Method of manufacturing a high-strength stainless steel pipe and a high-strength stainless steel pipe
07/21/16Mechanical structural component and manufacturing same
07/21/16Method for operating a blast furnace
07/21/16Method of manufacturing hot press formed part, and hot press formed part
07/14/16Laser beam welding diagnosis apparatus and laser beam welding diagnosis method
07/14/16Non-oriented electrical steel sheet and hot rolled steel sheet thereof
07/14/16Non-oriented electrical steel sheet having high magnetic flux density and motor
Social Network Patent Pack
07/07/16Method of producing high-strength hot-dip galvanized steel sheet and producing high-strength galvannealed steel sheet
07/07/16Method of producing grain oriented electrical steel sheet
06/30/16High strength steel sheet having high young's modulus and manufacturing the same
06/30/16High strength steel sheet having high young's modulus and manufacturing the same
06/23/16High-strength cold-rolled steel sheet and manufacturing the same
06/23/16High-strength cold-rolled steel sheet and manufacturing the same
06/23/16High-yield-ratio, high-strength cold rolled steel sheet and production method therefor
06/23/16Threaded joint for oil country tubular goods
06/23/16Grain oriented electrical steel sheet and manufacturing the same
06/16/16Method of cutting and removing adhesive matter at end of cuboid metal material and removal apparatus
06/16/16Ferritic stainless steel having excellent corrosion resistance of weld zone
06/16/16Iron-based amorphous alloy thin strip
06/09/16Press forming method and manufacturing press-formed part
06/09/16Hot-pressed member and manufacturing the same
06/09/16Steel sheet for can and manufacturing the same
06/09/16High-strength galvanized steel sheet having excellent formability and crashworthiness and manufacturing the same
06/09/16Method for forming blank and determining preforming shape
06/09/16Ferritic stainless steel foil
06/09/16Grain oriented electrical steel sheet and manufacturing the same
06/02/16Method of manufacturing hot-pressed member
06/02/16Mixed powder for powder metallurgy, manufacturing same, and manufacturing iron-based powder sintered body
06/02/16Method of detecting abnormality at blast furnace and operating blast furnace
06/02/16Heavy wall electric resistance welded steel pipe for line pipe and manufacturing the same (as amended)
05/26/16Indirect spot welding method
05/26/16Steel sheet for hot press-forming (as amended)
05/26/16High-carbon hot-rolled steel sheet and producing the same
05/26/16High-carbon hot-rolled steel sheet and manufacturing the same
05/26/16Method of producing steel material
05/26/16Abnormality detection method and blast furnace operation method







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