C21D 1/02

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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


Subclass 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

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
11872616 Method for manufacturing cold-forged, extruded aluminum alloy tubeAug 21, 19Jan 16, 24Jin Yuncheng Enterprise Co., Ltd.
11767573 Ferritic stainless steel sheet and method of producing same, and al or al alloy coated stainless steel sheetAug 26, 19Sep 26, 23JFE Steel Corporation
11447849 Non-heat treated steel for induction hardeningApr 25, 17Sep 20, 22Nippon Steel Corporation
11427878 Ultrahigh-strength ultrahigh-toughness and low-density dual-phase lamellar steel plate and preparation method thereforJun 10, 20Aug 30, 22Northeastern University
11345972 High-strength hot-rolled steel sheet and method for manufacturing the sameFeb 17, 15May 31, 22JFE Steel Corporation
11247252 Method for manufacturing a component of austenitic TWIP or TRIP/TWIP steelJul 08, 16Feb 15, 22OUTOKUMPU OYJ
10961611 High-strength steel with yield strength of 800 MPa and production method thereforDec 08, 15Mar 30, 21Baoshan Iron & Steel Co., Ltd.
10889874 Thick steel plate for high heat input welding and having great heat-affected area toughness and manufacturing method thereforDec 08, 16Jan 12, 21Baoshan Iron & Steel Co., Ltd.
10837089 Thick steel plate for high heat input welding and having great heat-affected area toughness and manufacturing method thereforDec 08, 16Nov 17, 20Baoshan Iron & Steel Co., Ltd.
10718038 Two-phase alloy, product using said two-phase alloy, and method for producing said productSep 28, 15Jul 21, 20Hitachi Ltd.
10532486 Method for producing cutting bladesFeb 05, 14Jan 14, 20BOEHLER PROFIL GMBH
10293397 Metal wire and electric wireSep 24, 14May 21, 19Yazaki Corporation; The University of Tokyo;
10161024 Method for producing an ultra high strength material with high elongationFeb 27, 14Dec 25, 18Outokumpu Nirosta GmbH
9975157 Process and apparatus for producing profiles from metalJun 30, 15May 22, 18THYSSENKRUPP AG
9789582 Method and compression apparatus for introducing residual compression into a component having a regular or an irregular shaped surfaceMar 15, 13Oct 17, 17SURFACE TECHNOLOGY HOLDINGS, LTD.
9765414 Heat treatment method of turnout track and the turnout trackDec 27, 13Sep 19, 17PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD., PANGANG GROUP PANZHIHUA STEEL & VANADIUM CO., LTD.,
9752203 Process to improve fatigue strength of micro alloy steels, forged parts made from the process and an apparatus to execute the processOct 03, 12Sep 05, 17Not available
9738945 Process for producing forged productJan 31, 12Aug 22, 17NISSAN MOTOR CO., LTD.
9446443 Cutting members for shaving razorsMay 09, 14Sep 20, 16THE GILLETTE COMPANY LLC
9273727 Method for producing a track element of a bearing assemblyOct 25, 12Mar 01, 16AKTIEBOLAGET SKF

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2022/0267,870 METHOD FOR PRODUCING RAILMar 06, 20Aug 25, 22JFE Steel Corporation
2021/0108,279 Ultrahigh-Strength Ultrahigh-Toughness and Low-Density Dual-Phase Lamellar Steel Plate and Preparation Method ThereforJun 10, 20Apr 15, 21Not available
2020/0024,679 HOT ROLLED STEEL SHEET, STEEL FORGED PART AND PRODUCTION METHOD THEREFORMar 31, 17Jan 23, 20501 Nippon Steel Corporation

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