NIPPON STEEL CORPORATION

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Technologies

Intl Class Technology # of Patents/ App Rank in Class
 
 
 
C22C ALLOYS 1674
 
 
 
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, FORM9465
 
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 6722
 
 
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 458
 
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 34265
 
 
 
B21B ROLLING OF METAL 298
 
 
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 2227
 
 
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 1977
 
 
 
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 1962

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0199,487 METHOD FOR PRODUCING HIGH-STRENGTH HOT-DIP GALVANNEALED STEEL SHEETDec 26, 13Jul 17, 14[C23C]
2014/0030,135 HIGH-STRENGTH NON-ORIENTED ELECTRICAL STEEL SHEETApr 11, 12Jan 30, 14[H01F]
2013/0160,743 METHOD OF PRODUCING COMMON RAIL AND LOCALLY REINFORCED COMMON RAILJan 09, 13Jun 27, 13[F02M]
2013/0153,092 METHOD OF PRODUCTION OF WELDED JOINTFeb 23, 11Jun 20, 13[B23K]
2013/0118,650 FERRITIC-AUSTENITIC STAINLESS STEEL EXCELLENT IN CORROSION RESISTANCE AND WORKABILITY AND METHOD OF PRODUCTION OF SAMESep 17, 12May 16, 13[C21D, C22C]
2013/0089,672 Hot-dip zn-al alloy-plated steel material with excellent bending workability and production method thereofNov 29, 12Apr 11, 13[C23C]
2013/0078,031 ULTRAHIGH-STRENGTH WELDED JOINT AND PRODUCTION METHOD THEREOFJun 06, 11Mar 28, 13[B23K]
2013/0020,836 COUPLING STRUCTURE BETWEEN FRONT PILLAR AND SIDE SILL OF AUTOMOBILESep 28, 12Jan 24, 13[B62D]
2012/0151,981 METHOD FOR COOLING HOT-ROLLED STEEL STRIPDec 16, 10Jun 21, 12[B21B]
2012/0111,457 AUSTENITE-TYPE STAINLESS STEEL HOT-ROLLING STEEL MATERIAL WITH EXCELLENT CORROSION RESISTANCE, PROOF-STRESS, AND LOW-TEMPERATURE TOUGHNESS AND PRODUCTION METHOD THEREOFJan 13, 12May 10, 12[C22C, C21D]

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 Filing Date Issue/Pub Date Intl Class
2013/0089,672 Hot-dip zn-al alloy-plated steel material with excellent bending workability and production method thereofNov 29, 12Apr 11, 13[C23C]
8,266,939 Method for hydroforming and hydroformed productJul 18, 08Sep 18, 12[B21D]
2012/0006,451 CARBON STEEL SHEET HAVING EXCELLENT CARBURIZATION PROPERTIES, AND METHOD FOR PRODUCING SAMEMar 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 CASEMar 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 sheetsApr 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 SAMEJul 15, 11Nov 03, 11[B32B]
8,048,238 High young's modulus steel plate and method of production of sameNov 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 sameJun 15, 11Oct 13, 11[B32B]
2011/0186,182 STEEL FOR NITROCARBURIZING AND NITROCARBURIZED PARTSOct 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 STRUCTUREOct 01, 09Feb 17, 11[E02D]
2011/0030,911 LOW-CARBON STEEL SLAB PRODUCING METHODJul 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 SAMEOct 15, 09Jan 06, 11[B21B, C21D, C22C]
7,803,462 Titanium materials with coating layer, laminated glass using the same and methods of manufacturing the sameOct 14, 03Sep 28, 10[B32B]
2010/0172,784 Cast iron semi-finished product excellent in workability and method of production of the sameDec 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 SlabFeb 16, 06Jun 24, 10[C22C, B22D]
2010/0143,747 Liquid phase diffusion bonding method of metal machine part and such metal machine partFeb 04, 10Jun 10, 10[B32B]
2010/0124,515 Machine structural steel excellent in machinability and strength propertiesJan 20, 10May 20, 10[C22C]
2010/0047,107 STEEL MATERIAL SUPERIOR IN HIGH TEMPERATURE STRENGTH AND TOUGHNESS AND METHOD OF PRODUCTION OF SAMEApr 11, 08Feb 25, 10[C21D, C22C]
2009/0288,747 Metal Cord, Rubber-Cord Complex and Pneumatic Tire Using the SameNov 30, 06Nov 26, 09[B60C, B32B, C25D]
7,618,476 Method and apparatus for cooling reduced-iron agglomerateSep 19, 02Nov 17, 09[C22B, C21B]

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