NIPPON STEEL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
C22C ALLOYS 1656
 
 
 
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 1204
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM9165
 
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 6629
 
 
 
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 34313
 
 
 
B21B ROLLING OF METAL 2911
 
 
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 2132
 
 
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 1767
 
 
 
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 1773

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9631265 Hot-rolled steel sheet and method for producing sameMay 24, 12Apr 25, 17[C22C, C21D]
D679785 Dented steel pipeJul 06, 11Apr 09, 13[2301]
8365567 Rolling mill and rolling method for flat products of steelFeb 24, 09Feb 05, 13[B21B]
8366836 Manufacturing method of grain-oriented electrical steel sheetJul 13, 10Feb 05, 13[H01F]
8359894 Method for cooling hot-rolled steel stripDec 16, 10Jan 29, 13[B21B]
8360136 Continuous casting method and nozzle heating deviceDec 28, 09Jan 29, 13[B22D]
8361245 Steel excellent in resistance to sulfuric acid dew point corrosionFeb 24, 06Jan 29, 13[C22C]
8361246 Pearlite railAug 13, 10Jan 29, 13[C22C]
8361248 Steel superior in CTOD properties of weld heat-affected zone and method of production of sameDec 04, 08Jan 29, 13[C22C]
8361676 Solid polymer type fuel cell separator and method of production of sameSep 07, 11Jan 29, 13[H01M]

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Expired/Abandoned/Withdrawn Patents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]
8266939 Method for hydroforming and hydroformed productWithdrawnJul 18, 08Sep 18, 12[B21D]
2012/0088,096 Electromagnetic steel sheet having insulating coating and method of manufacturing the sameABANJun 14, 10Apr 12, 12[B05D, B32B]
8109056 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]
8070889 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]
8048238 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]
8034151 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]
7865260 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]
7860595 Production schedule creation device and method, production process control device and method, computer program, and computer-readable recording mediumExpiredJan 08, 10Dec 28, 10[G05B]
7803462 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]

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