NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C22C ALLOYS 7218
 
  
 
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 3816
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM7150
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL763
 
  
 
B21B ROLLING OF METAL 626
 
  
 
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 588
 
  
 
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 398
 
  
 
C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING 348
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 388
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 381

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0044,767 FERRITIC STAINLESS STEEL SHEETOct 06, 17Feb 15, 18[C21D, C22C]
2018/0037,968 STAINLESS STEEL HAVING EXCELLENT BRAZEABILITYMar 22, 16Feb 08, 18[C21D, C22C]
2018/0016,655 FERRITIC STAINLESS STEEL FOR EXHAUST SYSTEM MEMBER HAVING EXCELLENT CORROSION RESISTANCE AFTER HEATINGJan 15, 16Jan 18, 18[C21D, C22C]
2017/0314,093 FERRITE-BASED STAINLESS STEEL PLATE, STEEL PIPE, AND PRODUCTION METHOD THEREFOROct 27, 15Nov 02, 17[C21D, C22C]
2017/0275,723 FERRITE-BASED STAINLESS STEEL WITH HIGH RESISTANCE TO CORROSIVENESS CAUSED BY EXHAUST GAS AND CONDENSATION AND HIGH BRAZING PROPERTIES AND METHOD FOR MANUFACTURING SAMEOct 30, 15Sep 28, 17[C21D, C22C]
2017/0253,945 MARTENSITIC STAINLESS STEEL FOR BRAKE DISK AND METHOD FOR PRODUCING SAID STEELSep 02, 15Sep 07, 17[C21D, C22C]
2017/0137,946 CLEAR-COATED STAINLESS STEEL SHEETApr 07, 15May 18, 17[C23C, B05D]
2017/0107,593 ROLLED FERRITIC STAINLESS STEEL SHEET, METHOD FOR PRODUCING THE SAME, AND FLANGE PARTMar 26, 15Apr 20, 17[F16L, C21D, C22C]
2015/0292,068 FERRITIC STAINLESS STEEL HAVING EXCELLENT HEAT RESISTANCEOct 30, 13Oct 15, 15[F01N, C21D, C22C]
2015/0225,806 SUPER NON-MAGNETIC SOFT STAINLESS STEEL WIRE MATERIAL HAVING EXCELLENT COLD WORKABILITY AND CORROSION RESISTANCE, METHOD FOR MANUFACTURING SAME, STEEL WIRE, STEEL WIRE COIL, AND METHOD FOR MANUFACTURING SAMESep 26, 13Aug 13, 15[C21D, C22C]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9885099 Ferritic stainless steel sheetMar 08, 13Feb 06, 18[C21D, C22C]
9862168 Alloying element-saving hot rolled duplex stainless steel material, clad steel plate having duplex stainless steel as cladding material therefor, and production method for sameJan 26, 12Jan 09, 18[B23K, C21D, B32B, C22C, B21B]
9863016 Super non-magnetic soft stainless steel wire material having excellent cold workability and corrosion resistance, method for manufacturing same, steel wire, steel wire coil, and method for manufacturing sameSep 26, 13Jan 09, 18[C21D, C22C]
9837567 Stainless steel substrate for solar cell having superior insulating properties and low thermal expansion coefficient and method of producing the sameMay 02, 14Dec 05, 17[C23C, H01L, C21D, C22C]
9771640 Ferritic stainless steel plate which has excellent ridging resistance and method of production of sameJun 18, 12Sep 26, 17[C21D, C22C, B21B]
9714459 Heat-resistant austenitic stainless steel sheetMar 28, 13Jul 25, 17[C21D, C22C]
9611525 Ferritic stainless steel for biofuel supply system part, biofuel supply system part, ferritic stainless steel for exhaust heat recovery unit, and exhaust heat recovery unitMar 28, 12Apr 04, 17[F02M, F28D, F28F, C22C]
9523402 Stainless steel brake disc and method for production thereofFeb 07, 14Dec 20, 16[F16D, C21D, C22C]
9399809 Hot rolled ferritic stainless steel sheet, method for producing same, and method for producing ferritic stainless steel sheetFeb 08, 12Jul 26, 16[C21D, C22C, B21B]
9365914 Duplex stainless steel superior in corrosion resistance of weldMar 09, 12Jun 14, 16[B23K, C21D, C22C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0376,732 FERRITIC STAINLESS STEEL SHEET WHICH IS EXCELLENT IN WORKABILITY AND METHOD OF PRODUCTION OF SAMEAbandonedFeb 04, 14Dec 31, 15[C21D, C22C]
2014/0023,432 FERRITIC STAINLESS STEEL EXCELLENT IN CORROSION RESISTANCE AND STRENGTH OF WELD ZONE AND TIG WELDED STRUCTUREAbandonedMar 29, 12Jan 23, 14[C22C]
2014/0023,550 FERRITIC STAINLESS STEEL SHEET EXCELLENT IN HEAT RESISTANCE AND WORKABILITY AND METHOD OF PRODUCTION OF SAMEAbandonedMar 28, 12Jan 23, 14[C21D, C22C, B21B]
2013/0336,834 AUSTENITIC STAINLESS STEEL EXCELLENT IN CORROSION RESISTANCE AND BRAZEABILITYAbandonedMar 28, 12Dec 19, 13[C22C]
2013/0149,187 HEAT-RESISTANT FERRITIC STAINLESS STEEL SHEET HAVING EXCELLENT OXIDATION RESISTANCEAbandonedSep 15, 11Jun 13, 13[C22C]
2013/0129,560 FERRITIC STAINLESS STEELAbandonedAug 04, 11May 23, 13[C22C]
8444916 Stainless steel excellent in corrosion resistance, ferritic stainless steel excellent in resistance to crevice corrosion and formability, and ferritic stainless steel excellent in resistance to crevice corrosionWithdrawnMay 08, 07May 21, 13[C22C]
2013/0017,116 FERRITIC STAINLESS STEEL SHEET EXCELLENT IN SURFACE GLOSS AND CORROSION RESISTANCE AND METHOD FOR PRODUCING SAMEAbandonedMar 22, 11Jan 17, 13[C21D, C22C, B21B]
2013/0011,294 FERRITIC STAINLESS STEEL EXCELLENT IN CORROSION RESISTANCE IN ENVIRONMENT OF CONDENSED WATER FROM HYDROCARBON COMBUSTION GASAbandonedMar 01, 11Jan 10, 13[C22C]
2012/0014,830 FERRITIC STAINLESS STEEL EXCELLENT IN HEAT RESISTANCE AND WORKABILITY SHEETAbandonedMar 23, 10Jan 19, 12[C22C, B21B]
2012/0009,433 DUPLEX STAINLESS STEEL SHEET WITH EXCELLENT PRESS-FORMABILITYAbandonedMar 17, 10Jan 12, 12[B21C]
2011/0176,953 FERRITIC STAINLESS STEEL SHEET FOR EGR COOLERSAbandonedOct 23, 09Jul 21, 11[C22C]
2011/0110,812 FERRITE STAINLESS STEEL FOR USE IN PRODUCING UREA WATER TANKAbandonedJul 23, 09May 12, 11[C22C]
2010/0272,594 FERRITIC STAINLESS STEEL WITH EXCELLENT BRAZEABILITYAbandonedDec 24, 08Oct 28, 10[C22C]
2010/0233,015 Stainless Steel Sheet for Structural Components Excellent in Impact Absorption PropertyAbandonedOct 30, 07Sep 16, 10[C22C]
2010/0218,856 Cr-Containing Steel Superior in Heat Fatigue CharateristicsAbandonedJun 25, 07Sep 02, 10[C22C]
2010/0126,644 FERRITIC-AUSTENITIC STAINLESS STEEL EXCELLENT IN CORROSION RESISTANCE AND WORKABILITY ANDMETHOD OF PRODUCTION OF SAMEAbandonedAug 01, 08May 27, 10[C21D, C22C]
2009/0274,929 Surface treated stainless steel sheet for automobile fuel tank excellent in corrosion resistance under salt corrosive environmentAbandonedJan 05, 07Nov 05, 09[B32B]
2009/0159,602 Austenitic High Mn Stainless Steel for High Pressure Hydrogen GasAbandonedOct 27, 06Jun 25, 09[F16L, F17C, C22C]
2009/0053,551 Surface Treated Stainless Steel Sheet for Automobile Fuel Tank and for Automobile Fuel Pipe with Excellent Salt Corrosion Resistance and Weld Zone Reliability and Surface Treated Stainless Steel Welded Pipe for Automobile Fuel Inlet Pipe Excellent in Pipe ExpandabilityAbandonedOct 26, 07Feb 26, 09[B32B]

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