JFE STEEL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C22C ALLOYS 5941
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 5461
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 19711
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM14741
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 12414
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 8226
 
  
 
B21B ROLLING OF METAL 763
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 6011
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 56150
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL4130

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0073,095 HIGH-STRENGTH STEEL, METHOD FOR MANUFACTURING HIGH-STRENGTH STEEL, STEEL PIPE AND METHOD FOR MANUFACTURING STEEL PIPE (AS AMENDED)Mar 25, 16Mar 15, 18[F16L, C21D, C22C]
2018/0065,164 PRESS FORMING METHOD AND PRESS FORMING TOOL (AS AMENDED)Feb 03, 16Mar 08, 18[B21D]
2018/0066,332 HIGH-STRENGTH STEEL, METHOD FOR MANUFACTURING HIGH-STRENGTH STEEL, STEEL PIPE, AND METHOD FOR MANUFACTURING STEEL PIPEMar 27, 15Mar 08, 18[C21D, C22C]
2018/0066,333 NON-ORIENTED ELECTRICAL STEEL SHEET, PRODUCTION METHOD THEREFOR, AND MOTOR COREJan 07, 16Mar 08, 18[H02K, H01F, C21D, C22C]
2018/0066,346 GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAMEMar 04, 16Mar 08, 18[H01F, C21D, C22C]
2018/0057,905 STEEL PLATE FOR STRUCTURAL PIPES OR TUBES, METHOD OF PRODUCING STEEL PLATE FOR STRUCTURAL PIPES OR TUBES, AND STRUCTURAL PIPES AND TUBESMar 25, 16Mar 01, 18[F16L, C21D, C22C]
2018/0057,908 HIGH-STRENGTH, HIGH-TOUGHNESS STEEL PLATE AND METHOD FOR PRODUCING THE SAMEMar 25, 16Mar 01, 18[C21D, C22C]
2018/0057,916 THIN HIGH-STRENGTH COLD-ROLLED STEEL SHEET AND METHOD OF PRODUCING THE SAMEJan 25, 16Mar 01, 18[C23C, C21D, C22C]
2018/0057,919 HIGH-STRENGTH COLD-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAMEFeb 16, 16Mar 01, 18[C21D, C22C]
2018/0057,956 METHOD FOR FORMING LINEAR GROOVE ON STEEL STRIP AND METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEETDec 18, 15Mar 01, 18[H01F, C21D, C23F, C25F, C22C]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9920390 Method for preliminary treatment of molten ironJan 17, 13Mar 20, 18[C21C]
9920393 Method of producing non-oriented electrical steel sheetMar 07, 13Mar 20, 18[H01F, C21D, C22C]
9920394 Bake-hardening galvanized steel sheetNov 27, 14Mar 20, 18[C23C, C23F, C21D, C22C, B32B]
9920409 Ferritic stainless steel foilJan 24, 13Mar 20, 18[F01N, C21D, C22C]
9914163 Method of sheet formingAug 11, 14Mar 13, 18[B21D]
9914988 High-strength cold-rolled steel sheet with high yield ratio having excellent formability and method for producing the sameNov 30, 11Mar 13, 18[C21D, C22C]
9905343 Production method for grain-oriented electrical steel sheet and primary recrystallized steel sheet for production of grain-oriented electrical steel sheetDec 25, 13Feb 27, 18[C23C, H01F, C21D, C22C]
9895764 Resistance spot welding systemJan 24, 14Feb 20, 18[B23K]
9895765 Resistance spot welding methodDec 04, 14Feb 20, 18[B23K]
9895863 High-strength galvanized steel sheet and method of manufacturing the sameAug 22, 14Feb 20, 18[C23C, C21D, B32B, C22C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0276,081 GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAMEAbandonedMay 31, 16Sep 22, 16[H01F, C21D, C22C]
2016/0180,991 GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING THE SAMEAbandonedFeb 09, 16Jun 23, 16[H01F, C22C]
2016/0163,436 GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING THE SAMEAbandonedFeb 09, 16Jun 09, 16[H01F, C22C]
2016/0017,471 HIGH-STRENGTH GALVANIZED STEEL SHEET AND PRODUCTION METHOD THEREFORAbandonedFeb 28, 14Jan 21, 16[C23C, C21D, B32B, C22C]
2015/0368,741 HIGH-STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME (AS AMENDED)AbandonedJan 23, 14Dec 24, 15[C23C, C21D, C22C]
2015/0337,428 HOT-DIP Al-Zn ALLOY COATED STEEL SHEET AND METHOD FOR PRODUCING SAMEAbandonedJan 24, 14Nov 26, 15[C23C, B32B, C22C]
2015/0322,539 METHOD FOR ADJUSTING FURNACE ATMOSPHERE IN CONTINUOUS ANNEALING FURNACE (AS AMENDED)AbandonedJan 28, 13Nov 12, 15[F27D, C21D, C22C]
2015/0307,974 STEEL MATERIAL HAVING EXCELLENT ALCOHOL-INDUCED PITTING CORROSION RESISTANCE AND ALCOHOL-INDUCED SCC RESISTANCEAbandonedDec 02, 13Oct 29, 15[C22C]
2015/0292,069 STAINLESS STEEL-CLAD STEEL PLATE HAVING EXCEPTIONAL CORROSION RESISTANCE TO SEAWATERAbandonedDec 04, 13Oct 15, 15[C22C]
2015/0252,456 COLD-ROLLED STEEL SHEET WITH EXCELLENT SHAPE FIXABILITY AND METHOD OF MANUFACTURING THE SAMEAbandonedOct 11, 12Sep 10, 15[C21D, C22C]
2015/0243,419 METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEETAbandonedSep 27, 12Aug 27, 15[H01F, C21D, C22C]
2015/0219,549 APPARATUS THAT MEASURES THE AMOUNT OF HYDROGEN PENETRATED INTO METALAbandonedOct 03, 12Aug 06, 15[G01N]
2015/0203,947 HIGH-STRENGTH GALVANIZED STEEL SHEET WITH EXCELLENT FORMABILITY AND SHAPE FIXABILITY AND METHOD FOR MANUFACTURING THE SAMEAbandonedJul 31, 12Jul 23, 15[C23C, C21D, C22C, B32B]
2015/0198,270 THREADED JOINT FOR PIPESAbandonedJul 01, 13Jul 16, 15[F16L]
2015/0159,246 BASE MATERIAL FOR HIGH-TOUGHNESS CLAD STEEL PLATE AND METHOD OF PRODUCING THE CLAD STEEL PLATEAbandonedMay 22, 13Jun 11, 15[B23K, C21D, C22C]
2015/0151,615 AUTOMOBILE DOOR IMPACT BEAMAbandonedApr 23, 13Jun 04, 15[B60J]
2015/0152,982 THICK-WALLED HIGH-STRENGTH SOUR-RESISTANT LINE PIPE AND METHOD FOR PRODUCING SAMEAbandonedMar 29, 13Jun 04, 15[F16L, G01N, C21D, C22C]
2015/0147,222 NI-CONTAINING STEEL PLATEAbandonedJul 18, 13May 28, 15[C22C]
2015/0132,177 STAINLESS CLAD STEEL WITH EXCELLENT CORROSION RESISTANCEAbandonedMar 05, 13May 14, 15[C22C]
2015/0122,812 LAMINATED METAL SHEET AND CAN CONTAINER FOR FOODAbandonedApr 01, 13May 07, 15[B65D, B32B]

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