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C21D8/1244
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CHEMISTRY METALLURGY
C21
Iron metallurgy
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
C21D8/00
Modifying the physical properties by deformation combined with, or followed by, heat treatment
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C21D8/1244
the heat treatment(s) being of interest
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Patents Grants
last 30 patents
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Patent Grant
Coating liquid for forming insulation coating for grain-oriented el...
Patent number
12,157,921
Issue date
Dec 3, 2024
Nippon Steel Corporation
Shuichi Yamazaki
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Non-oriented electrical steel sheet, production method for non-orie...
Patent number
12,119,706
Issue date
Oct 15, 2024
Nippon Steel Corporation
Yoshiaki Natori
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of producing a CoFe alloy strip
Patent number
12,110,579
Issue date
Oct 8, 2024
Vacuumschmelze GmbH & Co. KG
Niklas Volbers
C21 - METALLURGY OF IRON
Information
Patent Grant
High-magnetic-induction low-iron-loss non-oriented silicon steel sh...
Patent number
12,104,215
Issue date
Oct 1, 2024
Baoshan Iron & Steel Co., Ltd.
Feng Zhang
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain oriented electrical steel sheet
Patent number
11,753,691
Issue date
Sep 12, 2023
Nippon Steel Corporation
Shuichi Nakamura
C21 - METALLURGY OF IRON
Information
Patent Grant
Non oriented electrical steel sheet, iron core, manufacturing metho...
Patent number
11,749,429
Issue date
Sep 5, 2023
Nippon Steel Corporation
Takeaki Wakisaka
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of production of tin containing non grain-oriented silicon s...
Patent number
11,566,296
Issue date
Jan 31, 2023
Arcelormittal
Elke Leunis
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing grain-oriented electrical steel sheet and...
Patent number
11,408,042
Issue date
Aug 9, 2022
Nippon Steel Corporation
Nobusato Morishige
C21 - METALLURGY OF IRON
Information
Patent Grant
Device to improve iron loss properties of grain-oriented electrical...
Patent number
11,377,706
Issue date
Jul 5, 2022
JFE Steel Corporation
Seiji Okabe
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing grain-oriented electrical steel strip
Patent number
11,239,012
Issue date
Feb 1, 2022
Andreas Boettcher
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Nanocrystalline magnetic alloy and method of heat-treatment thereof
Patent number
11,230,754
Issue date
Jan 25, 2022
Metglas, Inc.
Motoki Ohta
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Grain-oriented electrical steel plate and production method therefor
Patent number
11,180,819
Issue date
Nov 23, 2021
Posco
Oh-Yeoul Kwon
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for refining magnetic domains of grain-oriented electrical s...
Patent number
11,060,163
Issue date
Jul 13, 2021
Posco
Seong Cheol Hong
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for producing non-oriented electrical steel sheet having exc...
Patent number
10,975,451
Issue date
Apr 13, 2021
JFE Steel Corporation
Hiroaki Nakajima
C21 - METALLURGY OF IRON
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Patent Grant
Grain-oriented electrical steel sheet and manufacturing method ther...
Patent number
10,907,231
Issue date
Feb 2, 2021
Posco
Hyung Don Joo
C21 - METALLURGY OF IRON
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Patent Grant
Method of manufacturing grain-oriented electrical steel sheet exhib...
Patent number
10,889,871
Issue date
Jan 12, 2021
JFE Steel Corporation
Shigehiro Takajo
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Grain-oriented electrical steel sheet and method for manufacturing...
Patent number
10,889,880
Issue date
Jan 12, 2021
JFE Steel Corporation
Takeshi Imamura
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Thin strip component, method for manufacturing same, and motor usin...
Patent number
10,862,354
Issue date
Dec 8, 2020
Panasonic Corporation
Yukio Nishikawa
C21 - METALLURGY OF IRON
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Patent Grant
Grain-oriented electrical steel sheet and manufacturing method ther...
Patent number
10,851,431
Issue date
Dec 1, 2020
Posco
Kyu-Seok Han
C21 - METALLURGY OF IRON
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Patent Grant
Method for manufacturing core plate
Patent number
10,749,416
Issue date
Aug 18, 2020
DENSO CORPORATION
Tetsuya Aoki
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Device to improve iron loss properties of grain-oriented electrical...
Patent number
10,745,773
Issue date
Aug 18, 2020
JFE Steel Corporation
Seiji Okabe
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Two-phase alloy, product using said two-phase alloy, and method for...
Patent number
10,718,038
Issue date
Jul 21, 2020
Hitachi, Ltd.
Masafumi Noujima
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Continuous annealing method for low coercive force cold-rolled elec...
Patent number
10,697,040
Issue date
Jun 30, 2020
Baoshan Iron & Steel Co., Ltd.
Yuanyuan Yan
C21 - METALLURGY OF IRON
Information
Patent Grant
NdFeB magnet containing cerium and manufacturing method thereof
Patent number
10,658,094
Issue date
May 19, 2020
SHENYANG GENERAL MAGNETIC CO., LTD
Baoyu Sun
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method of manufacturing grain-oriented electrical steel sheet
Patent number
10,629,346
Issue date
Apr 21, 2020
JFE Steel Corporation
Kunihiro Senda
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Manufacturing method for a motor core
Patent number
10,601,286
Issue date
Mar 24, 2020
Fukuta Electric & Machinery Co., Ltd.
Chin Feng Chang
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing grain-oriented electrical steel sheet
Patent number
10,428,403
Issue date
Oct 1, 2019
JFE Steel Corporation
Yasuyuki Hayakawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Grain-oriented electrical steel sheet having excellent magnetic cha...
Patent number
10,395,807
Issue date
Aug 27, 2019
JFE Steel Corporation
Takashi Terashima
C21 - METALLURGY OF IRON
Information
Patent Grant
Low-B bare earth magnet
Patent number
10,115,507
Issue date
Oct 30, 2018
XIAMEN TUNGSTEN CO., LTD.
Hiroshi Nagata
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Rapid heating apparatus of continuous annealing line
Patent number
10,072,318
Issue date
Sep 11, 2018
JFE Steel Corporation
Takayuki Fukunaga
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
ANNEALING FACILITY FOR ELECTRICAL STEEL SHEET, FINISH ANNEALING MET...
Publication number
20240410029
Publication date
Dec 12, 2024
JFE STEEL CORPORATION
Hideto KAMBARA
C21 - METALLURGY OF IRON
Information
Patent Application
NON ORIENTED ELECTRICAL STEEL SHEET, IRON CORE, MANUFACTURING METHO...
Publication number
20240013959
Publication date
Jan 11, 2024
NIPPON STEEL CORPORATION
Takeaki WAKISAKA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for Producing and Designing Complex Three-Dimensional Magnet...
Publication number
20230332276
Publication date
Oct 19, 2023
voestalpine Metal Forming GmbH
Bas-Jan Hoogenberg
B22 - CASTING POWDER METALLURGY
Information
Patent Application
METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20230307160
Publication date
Sep 28, 2023
JFE STEEL CORPORATION
Hiroi YAMAGUCHI
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PROCESSING A STEEL SHEET
Publication number
20230304120
Publication date
Sep 28, 2023
NanoNeal Technologies GmbH
Christian Dorfbauer
C21 - METALLURGY OF IRON
Information
Patent Application
NON ORIENTED ELECTRICAL STEEL SHEET, IRON CORE, MANUFACTURING METHO...
Publication number
20230110399
Publication date
Apr 13, 2023
NIPPON STEEL CORPORATION
Takeaki WAKISAKA
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN ORIENTED ELECTRICAL STEEL SHEET
Publication number
20220372589
Publication date
Nov 24, 2022
NIPPON STEEL CORPORATION
Shuichi NAKAMURA
C21 - METALLURGY OF IRON
Information
Patent Application
ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20220042126
Publication date
Feb 10, 2022
POSCO
Oh-Yeoul Kwon
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-MAGNETIC-INDUCTION LOW-IRON-LOSS NON-ORIENTED SILICON STEEL SH...
Publication number
20210277492
Publication date
Sep 9, 2021
Baoshan Iron & Steel Co., Ltd
Feng Zhang
C21 - METALLURGY OF IRON
Information
Patent Application
THIN STRIP COMPONENT, METHOD FOR MANUFACTURING SAME, AND MOTOR USIN...
Publication number
20210057942
Publication date
Feb 25, 2021
PANASONIC CORPORATION
Yukio NISHIKAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND...
Publication number
20210047704
Publication date
Feb 18, 2021
NIPPON STEEL CORPORATION
Nobusato MORISHIGE
C21 - METALLURGY OF IRON
Information
Patent Application
COATING LIQUID FOR FORMING INSULATION COATING FOR GRAIN-ORIENTED EL...
Publication number
20210002738
Publication date
Jan 7, 2021
NIPPON STEEL CORPORATION
Shuichi YAMAZAKI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
DEVICE TO IMPROVE IRON LOSS PROPERTIES OF GRAIN-ORIENTED ELECTRICAL...
Publication number
20200332380
Publication date
Oct 22, 2020
JFE STEEL CORPORATION
Seiji OKABE
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MOTOR CORE
Publication number
20190334414
Publication date
Oct 31, 2019
FUKUTA ELECTRIC & MACHINERY CO., LTD.
Chin Feng Chang
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-MAGNETIC-INDUCTION LOW-IRON-LOSS NON-ORIENTED SILICON STEEL SH...
Publication number
20190136336
Publication date
May 9, 2019
BAOSHAN IRON & STEEL CO., LTD.
Feng Zhang
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR REFINING MAGNETIC DOMAINS OF GRAIN-ORIENTED ELECTRICAL S...
Publication number
20190062866
Publication date
Feb 28, 2019
POSCO
Seong Cheol HONG
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
MANUFACTURING METHOD FOR A MOTOR CORE AND PRODUCT MADE BY THE SAME
Publication number
20180358868
Publication date
Dec 13, 2018
FUKUTA ELECTRIC & MACHINERY CO., LTD.
Chin Feng Chang
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
METHOD OF PRODUCTION OF TIN CONTAINING NON GRAIN-ORIENTED SILICON S...
Publication number
20170314087
Publication date
Nov 2, 2017
ARCELORMITTAL
Elke LEUNIS
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20170263357
Publication date
Sep 14, 2017
JFE STEEL CORPORATION
Kunihiro Senda
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
NdFeB magnet containing cerium and manufacturing method thereof
Publication number
20170103837
Publication date
Apr 13, 2017
SHENYANG GENERAL MAGNETIC CO., LTD.
Baoyu Sun
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING A FERROMAGNETIC COMPONENT FOR A TORQUE SENSOR...
Publication number
20160379754
Publication date
Dec 29, 2016
VALEO Schalter und Sensoren GmbH
Dirk Rachui
C21 - METALLURGY OF IRON
Information
Patent Application
LOW-B RARE EARTH MAGNET
Publication number
20160268025
Publication date
Sep 15, 2016
Xiamen Tungsten Co., Ltd.
Hiroshi Nagata
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING...
Publication number
20160230240
Publication date
Aug 11, 2016
JFE STEEL CORPORATION
Kunihiro Senda
C21 - METALLURGY OF IRON
Information
Patent Application
Process for producing grain-oriented electrical steel strip and gra...
Publication number
20160111190
Publication date
Apr 21, 2016
SMS SIEMAG AG
Andreas Boettcher
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREOF
Publication number
20160035469
Publication date
Feb 4, 2016
NIPPON STEEL & SUMITOMO METAL CORPORATION
Shuichi Yamazaki
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET INSPECTION DEVICE, STEEL SHEET INSPECTION METHOD, AND S...
Publication number
20150253242
Publication date
Sep 10, 2015
JFE STEEL CORPORATION
Tomohiko Ito
C21 - METALLURGY OF IRON
Information
Patent Application
Hot Rolled Silicon Steel Producing Method
Publication number
20150243418
Publication date
Aug 27, 2015
Baoshan Iron & Steel Co., Ltd
Huawei Zhang
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20150243419
Publication date
Aug 27, 2015
JEF STEEL CORPORATION
Kunihiro Senda
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET FOR IRON CORE AND METHOD OF M...
Publication number
20150187474
Publication date
Jul 2, 2015
JFE STEEL CORPORATION
Shigehiro Takajo
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR MANUFACTURING STEEL SHEET FOR ROTOR CORE FOR IPM MOTOR
Publication number
20150047746
Publication date
Feb 19, 2015
NISSHIN STEEL CO., LTD.
Tomonaga Iwatsu
C21 - METALLURGY OF IRON