NIPPON STEEL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
C22C ALLOYS 1665
 
 
 
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 1203
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM9361
 
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 6624
 
 
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 4511
 
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 34305
 
 
 
B21B ROLLING OF METAL 2910
 
 
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 2232
 
 
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 1867
 
 
 
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 1874

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0318,672 HIGH STRENGTH HOT ROLLED STEEL SHEET FOR LINE PIPE USE EXCELLENT IN LOW TEMPERATURE TOUGHNESS AND DUCTILE FRACTURE ARREST PERFORMANCE AND METHOD OF PRODUCTION OF SAMEJul 11, 14Oct 30, 14[C21D]
2014/0199,487 METHOD FOR PRODUCING HIGH-STRENGTH HOT-DIP GALVANNEALED STEEL SHEETDec 26, 13Jul 17, 14[C23C]
2013/0160,743 METHOD OF PRODUCING COMMON RAIL AND LOCALLY REINFORCED COMMON RAILJan 09, 13Jun 27, 13[F02M]
2012/0088,096 Electromagnetic steel sheet having insulating coating and method of manufacturing the sameJun 14, 10Apr 12, 12[B05D, B32B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D679785 Dented steel pipeJul 06, 11Apr 09, 13[2301]
8,365,567 Rolling mill and rolling method for flat products of steelFeb 24, 09Feb 05, 13[B21B]
8,366,836 Manufacturing method of grain-oriented electrical steel sheetJul 13, 10Feb 05, 13[H01F]
8,359,894 Method for cooling hot-rolled steel stripDec 16, 10Jan 29, 13[B21B]
8,360,136 Continuous casting method and nozzle heating deviceDec 28, 09Jan 29, 13[B22D]
8,361,245 Steel excellent in resistance to sulfuric acid dew point corrosionFeb 24, 06Jan 29, 13[C22C]
8,361,246 Pearlite railAug 13, 10Jan 29, 13[C22C]
8,361,248 Steel superior in CTOD properties of weld heat-affected zone and method of production of sameDec 04, 08Jan 29, 13[C22C]
8,361,676 Solid polymer type fuel cell separator and method of production of sameSep 07, 11Jan 29, 13[H01M]
8,356,501 Method of supplying lubricating oil in cold-rollingAug 02, 11Jan 22, 13[B21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0118,650 FERRITIC-AUSTENITIC STAINLESS STEEL EXCELLENT IN CORROSION RESISTANCE AND WORKABILITY AND METHOD OF PRODUCTION OF SAMEABANSep 17, 12May 16, 13[C21D, C22C]
2013/0089,672 Hot-dip zn-al alloy-plated steel material with excellent bending workability and production method thereofABANNov 29, 12Apr 11, 13[C23C]
8,266,939 Method for hydroforming and hydroformed productWithdrawnJul 18, 08Sep 18, 12[B21D]
8,109,056 Frame construction arrangement forming an opening in a wall of a low-rise buildingExpiredFeb 23, 10Feb 07, 12[E04B, E04H]
2012/0006,451 CARBON STEEL SHEET HAVING EXCELLENT CARBURIZATION PROPERTIES, AND METHOD FOR PRODUCING SAMEABANMar 03, 10Jan 12, 12[C22C, C21D]
2012/0009,464 MATERIAL FOR METAL CASE OF SECONDARY BATTERY USING NON-AQUEOUS ELECTROLYTE, METAL CASE, SECONDARY BATTERY, AND PRODUCING METHOD OF MATERIAL FOR METAL CASEABANMar 31, 10Jan 12, 12[B32B, H01M, C25D]
8,070,889 High-strength steel sheet and galvanized steel sheet having very good balance between hole expansibility and ductility, and also excellent in fatigue resistance, and methods of producing the steel sheetsWithdrawnApr 09, 09Dec 06, 11[C23C, C21D, C22C]
2011/0268,988 HIGHLY CORROSION-RESISTANT HOT-DIP GALVANIZED STEEL PRODUCT EXCELLENT IN SURFACE SMOOTHNESS AND FORMABILITY AND PROCESS FOR PRODUCING SAMEABANJul 15, 11Nov 03, 11[B32B]
8,048,238 High young's modulus steel plate and method of production of sameWithdrawnNov 07, 07Nov 01, 11[C21D, C22C]
2011/0250,471 Ultrahigh strength welded joint and ultrahigh strength welded steel pipe excellent in cold cracking resistance of weld metal, and methods for producing the sameABANJun 15, 11Oct 13, 11[B32B]
8,034,151 Method for removing boron from siliconExpiredMar 02, 05Oct 11, 11[C21B]
2011/0186,182 STEEL FOR NITROCARBURIZING AND NITROCARBURIZED PARTSABANOct 19, 09Aug 04, 11[B32B, C22C]
2011/0038,675 STEEL PIPE FOR REINFORCING GROUND, METHOD OF REINFORCING GROUND USING THE SAME, AND METHOD OF REINFORCING STRUCTUREABANOct 01, 09Feb 17, 11[E02D]
2011/0030,911 LOW-CARBON STEEL SLAB PRODUCING METHODABANJul 15, 09Feb 10, 11[B22D]
2011/0002,808 FIRE-RESISTANT STEEL MATERIAL SUPERIOR IN WELD HEAT AFFECTED ZONE REHEAT EMBRITTLEMENT RESISTANCE AND LOW TEMPERATURE TOUGHNESS AND METHOD OF PRODUCTION OF SAMEABANOct 15, 09Jan 06, 11[B21B, C21D, C22C]
7,865,260 Production schedule creation device and method, production process control device and method, computer program, and computer-readable recording mediumExpiredJan 08, 10Jan 04, 11[G05B, G06F]
7,860,595 Production schedule creation device and method, production process control device and method, computer program, and computer-readable recording mediumExpiredJan 08, 10Dec 28, 10[G05B]
7,803,462 Titanium materials with coating layer, laminated glass using the same and methods of manufacturing the sameExpiredOct 14, 03Sep 28, 10[B32B]
2010/0172,784 Cast iron semi-finished product excellent in workability and method of production of the sameABANDec 23, 09Jul 08, 10[C22C, B22D]
2010/0158,746 Extremely Low Carbon Steel Plate Excellent in Surface Characteristics, Workability, and Formability and a Method of Producing Extremely Low Carbon Cast SlabABANFeb 16, 06Jun 24, 10[C22C, B22D]

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