Nippon Kokan Kabushiki Kaisha

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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 144

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5405463 Continuous annealing process of producing cold rolled mild steel sheet excellent in deep drawability and aging resistibilitySep 20, 93Apr 11, 95[C21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5224856 Surface combustion burnerExpiredOct 27, 92Jul 06, 93[F23D]
5195344 Warm rolling facility for steel strip coilsExpiredDec 19, 91Mar 23, 93[B21B]
5161965 Surface combustion burnerExpiredSep 30, 91Nov 10, 92[F23D]
5116571 Chromoum heat-resistant steel excellent in toughness and having high cracking resistance and high creep strength in welded jointExpiredJul 12, 91May 26, 92[C22C]
5094764 Method for supplying a lubricating oil compositionExpiredDec 26, 90Mar 10, 92[C10M]
5093204 Vibration-damping composite sheet steelExpiredOct 26, 90Mar 03, 92[C23C]
5089031 Coal gasification apparatus using coal powderExpiredSep 14, 90Feb 18, 92[C10J]
5082510 Method for producing non-oriented steel sheetsExpiredMar 27, 89Jan 21, 92[H01F]
5078809 Method for producing cold-rolled steel sheetExpiredOct 17, 88Jan 07, 92[C21D]
5064982 Electric resistance seam welding methodExpiredAug 16, 89Nov 12, 91[B23K]
5035847 Mold for slip castingExpiredFeb 05, 91Jul 30, 91[C04B]
5030367 Water-dispersion lubricant of graphite, particulate resin and high molecular weight polybasic acid saltExpiredAug 30, 89Jul 09, 91[C10M]
5009871 Method of removing mercury in exhaust gases from a waster incineratorExpiredJan 13, 88Apr 23, 91[C25B, B01D]
5006181 Lubricating method for warm rolling of high silicon steelsExpiredDec 15, 88Apr 09, 91[H01F]
5000679 Burner with a cylindrical bodyExpiredFeb 27, 89Mar 19, 91[F23D]
4993939 Burner with a cylindrical bodyExpiredFeb 27, 89Feb 19, 91[F23D]
4988035 Method of liquid phase diffusion bonding of metal bodiesExpiredSep 05, 89Jan 29, 91[B23K]
4986341 Process for making non-oriented high silicon steel sheetExpiredDec 15, 88Jan 22, 91[B22D]
4986910 Apparatus for dehydrating sludgeExpiredJan 14, 87Jan 22, 91[B01D]
4984829 Screw coupling jointExpiredApr 21, 88Jan 15, 91[F16L]

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