KAWASAKI STEEL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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 5111
 
  
 
C22C ALLOYS 4530
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 3846
 
  
 
B21B ROLLING OF METAL 1914
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 1834
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM11146
 
  
 
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 687
 
  
 
C21B MANUFACTURE OF IRON OR STEEL 617
 
  
 
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 695
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 582

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7080307 Error correction decoder with correction of lowest soft decisionsFeb 26, 01Jul 18, 06[H03M]
6905530 Metallic powder-molded body, re-compacted body of the molded body, sintered body produced from the re-compacted body, and processes for production thereofJun 27, 02Jun 14, 05[C22C]
6774627 Leak magnetism detection sensor for magnetic flaw detection systemAug 26, 02Aug 10, 04[G01N, G01R]
6612745 Slide bearing device for roll immersed in continuous molten metal plating bathNov 14, 01Sep 02, 03[F16C]
6581779 Method of the magnetic loading of a sintering materialApr 26, 01Jun 24, 03[B03C, C22B]
6572518 Cermet powder for sprayed coating excellent in build-up resistance and roll having sprayed coating thereonJul 27, 01Jun 03, 03[B21D, B25F]
6558815 Hot dip Galvanized steel plate excellent in balance of strength and ductility and in adhesiveness between steel and plating layerOct 30, 01May 06, 03[B05D, B32B]
6539602 Method of repairing coke ovenDec 21, 99Apr 01, 03[B23P, E04G]
6540848 High strength, high toughness, seamless steel pipe for line pipeAug 29, 01Apr 01, 03[C21D, C22C]
6540957 Ladle, a ladle heating system and methods of heating the ladleAug 23, 00Apr 01, 03[C21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0261,920 Cold rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the sameAbandonedSep 04, 03Dec 30, 04[C21D]
6777931 Method of displaying signal obtained by measuring probe and device thereforExpiredDec 29, 99Aug 17, 04[G09G, G01N]
2004/0103,962 Cold rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the sameAbandonedSep 04, 03Jun 03, 04[C21D]
2004/0105,997 Cold-rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the sameAbandonedSep 04, 03Jun 03, 04[C22C, B32B]
2004/0035,501 Ferritic stainless steel sheet with excellent workability and method for making the sameAbandonedAug 25, 03Feb 26, 04[C22C]
6688151 Device and method for shifting work roll of cluster millExpiredMar 04, 02Feb 10, 04[B21B]
6652618 Iron based mixed power high strength sintered partsExpiredMay 10, 02Nov 25, 03[B22F]
6579340 Fume dust suppression during pouring of molten metal, and apparatusExpiredJun 15, 01Jun 17, 03[C21C]
6562473 Electrical steel sheet suitable for compact iron core and manufacturing method thereforExpiredNov 27, 00May 13, 03[H01F, B32B]
6557623 Production method for continuous casting cast billetExpiredNov 09, 01May 06, 03[B22D]
6555249 Surface treated steel sheet and method for production thereofExpiredMay 17, 01Apr 29, 03[B32B]
6547886 Method and apparatus for degreasing steel stripExpiredJun 09, 00Apr 15, 03[B08B]
6548460 Coating composition and lubricated metal sheetsExpiredJun 14, 00Apr 15, 03[C10M]
6544680 Fuel cell separator, a fuel cell using the fuel cell separator, and a method for making the fuel cell separatorExpiredJun 09, 00Apr 08, 03[H01M]
6537391 Steel with improved impact penetration resistance and method for producing the sameExpiredJun 12, 01Mar 25, 03[C23C]
6537674 Surface treated steel sheetExpiredApr 25, 01Mar 25, 03[B32B]
6537822 Method for analyzing free fluorine in solutions containing hydrofluoric acid solution, and apparatus for practicing the methodExpiredJul 05, 00Mar 25, 03[G01N]
6533836 Iron-based powders for powder metallurgyExpiredJul 03, 01Mar 18, 03[B22F]
6523416 Method for setting shape and working stress, and working environment of steel memberExpiredAug 29, 01Feb 25, 03[G01N]
6521056 Ferritic stainless steel sheet having superior workability at room temperatures and mechanical characteristics at high temperaturesExpiredJul 25, 01Feb 18, 03[C22C]

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