C21D

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Description

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 (cementation by diffusion processes C23C; surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by this subclass C23F 17/00; unidirectional solidification of eutectic materials or unidirectional demixing of eutectoid materials C30B)

Subclasses

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Subclass Title
1/00 General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (furnaces in general F27; electric heating H05B)
1/02 General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (furnaces in general F27; electric heating H05B) Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
1/04 General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (furnaces in general F27; electric heating H05B) with simultaneous application of supersonic waves, magnetic or electric fields
1/06 General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (furnaces in general F27; electric heating H05B) Surface hardening
1/08 General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (furnaces in general F27; electric heating H05B) Surface hardening with flames

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Recent Patents

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Patent #TitleFiling DateIssue DatePatent Owner
9,121,079 High-strength hot-rolled steel sheet and method of manufacturing the same Mar 09, 11 Sep 01, 15 NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMITOMO METAL CORPORATION
9,121,080 High-carbon steel wire excellent in wire drawability and fatigue property after wiredrawing Mar 17, 11 Sep 01, 15 KOBE STEEL, LTD., KOBE STEEL, LTD.
9,121,081 Multi-frequency heat treatment of a workpiece by induction heating Aug 04, 07 Sep 01, 15 INDUCTOHEAT, INC., INDUCTOHEAT INC.
9,121,086 Copper alloy sheet and method for manufacturing copper alloy sheet Jan 24, 14 Sep 01, 15 MITSUBISHI SHINDOH CO., LTD., MITSUBISHI SHINDOH CO., LTD.
9,121,087 High strength steel sheet and method for manufacturing the same Sep 04, 09 Sep 01, 15 JFE STEEL CORPORATION, JFE STEEL CORPORATION
9,121,088 High hardness, high toughness iron-base alloys and methods for making same Aug 01, 08 Sep 01, 15 ATI PROPERTIES, INC., ATI PROPERTIES, INC.
9,123,919 Rechargeable battery and heat treatment device Mar 13, 13 Sep 01, 15 SAMSUNG SDI CO., LTD., SAMSUNG SDI CO., LTD.
9,115,414 Retort furnace for heat and/or thermochemical treatment Feb 09, 10 Aug 25, 15 SECO/WARWICK S.A., SECO/WARWICK SA
9,115,415 Case hardened steel and method for producing same Aug 10, 11 Aug 25, 15 KOBE STEEL, LTD., KOBE STEEL, LTD.
9,115,416 High-yield-ratio and high-strength steel sheet excellent in workability Nov 30, 12 Aug 25, 15 KOBE STEEL, LTD., KOBE STEEL, LTD.
9,115,417 Liquid drop peening method and apparatus therefor Apr 05, 12 Aug 25, 15 UNITED TECHNOLOGIES CORPORATION, UNITED TECHNOLOGIES CORPORATION
9,108,234 Method and apparatus for preparing steel stock before hot rolling May 16, 12 Aug 18, 15 SIEMENS VAI METALS TECHNOLOGIES GMBH, SIEMENS VAI METALS TECHNOLOGIES GMBH & CO
9,108,298 Method of treating surface of mold and mold having surface treated by said method Jul 21, 11 Aug 18, 15 FUJI MANUFACTURING CO., LTD., FUJI MANUFACTURING CO. LTD.
9,109,268 Stainless steel for oil well, stainless steel pipe for oil well, and method of manufacturing stainless steel for oil well Oct 19, 11 Aug 18, 15 NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMITOMO METAL CORPORATION
9,109,273 High strength steel sheet and hot dip galvanized steel sheet having high ductility and excellent delayed fracture resistance and method for manufacturing the same Sep 01, 08 Aug 18, 15 POSCO, POSCO
9,109,274 High-tension steel plate excellent in base metal toughness and HAZ toughness Apr 24, 13 Aug 18, 15 KOBE STEEL, LTD., KOBE STEEL, LTD.
9,109,275 High-strength galvanized steel sheet and method of manufacturing the same Aug 31, 10 Aug 18, 15 NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMITOMO METAL CORPORATION
9,109,449 Turbine rotor and manufacturing method of turbine rotor Jul 15, 09 Aug 18, 15 MITSUBISHI HITACHI POWER SYSTEMS, LTD., MITSUBISHI HITACHI POWER SYSTEMS, LTD.
9,111,660 Method for manufacturing high-nitrogen steel wire and overhead power line using same Aug 02, 10 Aug 18, 15 METAL LINK, INC., METAL LINK, INC.
9,101,979 Methods for fabricating gradient alloy articles with multi-functional properties Oct 30, 12 Aug 11, 15 CALIFORNIA INSTITUTE OF TECHNOLOGY, CALIFORNIA INSTITUTE OF TECHNOLOGY

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Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2015/0247,214 STEEL PLATE HAVING YIELD STRENGTH OF 670 to 870 N/mm2 AND TENSILE STRENGTH OF 780 to 940 N/mm2 Dec 03, 13 Sep 03, 15 NIPPON STEEL & SUMITOMO METAL CORPORATION,
2015/0247,222 SURFACE-TREATED COMPONENT MANUFACTURING METHOD AND APPARATUS Feb 11, 15 Sep 03, 15 HITACHI AUTOMOTIVE SYSTEMS, LTD.,
2015/0247,223 HIGH STRENGTH AND LOW DENSITY PARTICLE-REINFORCED STEEL WITH IMPROVED E-MODULUS AND METHOD FOR PRODUCING SAID STEEL Sep 13, 13 Sep 03, 15 TATA STEEL NEDERLAND TECHNOLOGY BV,
2015/0247,224 TiC-PARTICLE-REINFORCED HIGH STRENGTH AND LOW DENSITY STEEL PRODUCTS WITH IMPROVED E-MODULUS AND METHOD FOR PRODUCING SAID PRODUCT Jul 24, 13 Sep 03, 15 TATA STEEL NEDERLAND TECHNOLOGY BV,
2015/0247,225 WIRE FOR PISTON RINGS Oct 03, 12 Sep 03, 15 TOKUSEN KOGYO CO., LTD., A CORP. OF JAPAN,
2015/0247,226 LOW ALLOY STEEL FOR OIL COUNTRY TUBULAR GOODS HAVING EXCELLENT SULFIDE STRESS CRACKING RESISTANCE AND MANUFACTURING METHOD THEREFOR Nov 05, 12 Sep 03, 15 NIPPON STEEL & SUMITOMO METAL CORPORATION,
2015/0247,227 METHOD FOR MANUFACTURING HEAVY WALL STEEL PIPE Oct 03, 13 Sep 03, 15 JFE STEEL CORPORATION,
2015/0248,957 GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME Dec 28, 12 Sep 03, 15 JFE STEEL CORPORATION,
2015/0240,324 SILICON ALLOYED STEEL FOR HOT ROLLING Feb 24, 14 Aug 27, 15 THYSSENKRUPP STEEL USA, LLC,
2015/0240,335 STEEL FOR INDUCTION HARDENING, ROUGHLY SHAPED MATERIAL FOR INDUCTION HARDENING, PRODUCING METHOD THEREOF, AND INDUCTION HARDENING STEEL PART May 08, 15 Aug 27, 15 ,
2015/0240,341 METHOD & STEEL COMPONENT Aug 19, 13 Aug 27, 15 ,
2015/0240,342 METHOD OF MANUFACTURING MACHINE COMPONENT Sep 12, 13 Aug 27, 15 NTN CORPORATION,
2015/0240,930 FLEXIBLE EXTERNALLY TOOTHED GEAR FOR STRAIN WAVE GEARING AND METHOD FOR MANUFACTURING SAME Feb 02, 15 Aug 27, 15 HARMONIC DRIVE SYSTEMS INC.,
2015/0243,417 Method and equipment for processing NdFeB rare earth permanent magnetic alloy with hydrogen pulverization May 11, 15 Aug 27, 15 SHENYANG GENERAL MAGNETIC CO., LTD.,
2015/0243,418 Hot Rolled Silicon Steel Producing Method Mar 29, 12 Aug 27, 15 BAOSHAN IRON & STEEL CO., LTD.,
2015/0243,419 METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET Sep 27, 12 Aug 27, 15 JFE STEEL CORPORATION,
2015/0231,675 SHEET FORMING OF METALLIC GLASS BY RAPID CAPACITOR DISCHARGE Feb 23, 15 Aug 20, 15 ,
2015/0231,920 BEARING DEVICE FOR WHEEL AND MANUFACTURING METHOD THEREFOR Sep 13, 13 Aug 20, 15 NTN CORPORATION,
2015/0232,959 INTERLOCKING STRUCTURE WITH INTEGRATED SECURING REGIONS FOR HEAT TREATING METAL PARTS Feb 14, 14 Aug 20, 15 ,
2015/0232,968 METHOD FOR HEAT TREATMENT OF HYPEREUTECTOID STEEL RAIL Dec 24, 14 Aug 20, 15 PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD.,

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