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C21D8/1255
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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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C21D8/1255
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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing grain oriented electrical steel sheet
Patent number
12,325,891
Issue date
Jun 10, 2025
Nippon Steel Corporation
Shinsuke Takatani
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing grain oriented electrical steel sheet
Patent number
12,312,649
Issue date
May 27, 2025
Nippon Steel Corporation
Shinsuke Takatani
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet, and steel sheet serving as b...
Patent number
12,217,889
Issue date
Feb 4, 2025
Nippon Steel Corporation
Shuichi Nakamura
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing grain oriented electrical steel sheet
Patent number
12,195,818
Issue date
Jan 14, 2025
Nippon Steel Corporation
Shinsuke Takatani
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing grain-oriented electrical steel sheet
Patent number
12,180,558
Issue date
Dec 31, 2024
Nippon Steel Corporation
Yoshiyuki Ushigami
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing grain-oriented electrical steel sheet
Patent number
12,173,378
Issue date
Dec 24, 2024
Nippon Steel Corporation
Satoshi Arai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Soft magnetic alloy and magnetic device
Patent number
12,165,794
Issue date
Dec 10, 2024
TDK Corporation
Kazuhiro Yoshidome
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Grain-oriented electrical steel sheet, method for manufacturing gra...
Patent number
12,134,802
Issue date
Nov 5, 2024
Nippon Steel Corporation
Ryutaro Yamagata
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Grain-oriented electrical steel sheet and method for manufacturing...
Patent number
12,123,065
Issue date
Oct 22, 2024
POSCO Co., Ltd
Oh Yeoul Kwon
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for improving corrosion resistance of neodymium-iron-boron m...
Patent number
12,112,884
Issue date
Oct 8, 2024
Zhejiang University
Mi Yan
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing grain oriented electrical steel sheet
Patent number
12,110,567
Issue date
Oct 8, 2024
Nippon Steel Corporation
Shinsuke Takatani
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and method for manufacturing...
Patent number
12,104,219
Issue date
Oct 1, 2024
Nippon Steel Corporation
Ichiro Tanaka
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and manufacturing method ther...
Patent number
12,040,110
Issue date
Jul 16, 2024
POSCO Co., Ltd
Hyun-Seok Ko
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and iron core using same
Patent number
11,959,149
Issue date
Apr 16, 2024
JFE Steel Corporation
Takeshi Imamura
C21 - METALLURGY OF IRON
Information
Patent Grant
Annealing separating agent composition for grain-oriented electrica...
Patent number
11,946,114
Issue date
Apr 2, 2024
POSCO Co., Ltd
Min Serk Kwon
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Grain oriented electrical steel with improved forsterite coating ch...
Patent number
11,942,247
Issue date
Mar 26, 2024
Cleveland-Cliffs Steel Properties Inc.
Jerry William Schoen
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain oriented electrical steel sheet
Patent number
11,939,641
Issue date
Mar 26, 2024
Nippon Steel Corporation
Shuichi Nakamura
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing magnetostrictive torque sensor shaft
Patent number
11,866,798
Issue date
Jan 9, 2024
PROTERIAL, LTD.
Teruyuki Nakamura
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing grain-oriented electrical steel sheet
Patent number
11,725,254
Issue date
Aug 15, 2023
POSCO Co., Ltd
Min Soo Han
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Grain-oriented electrical steel sheet and hot-rolled steel sheet fo...
Patent number
11,680,302
Issue date
Jun 20, 2023
Nippon Steel Corporation
Hiroshi Fujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Composition for forming insulation film of oriented electrical stee...
Patent number
11,667,985
Issue date
Jun 6, 2023
POSCO Co., Ltd
Min Soo Han
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Grain-oriented silicon steel having heat-resistant magnetic domain...
Patent number
11,633,809
Issue date
Apr 25, 2023
Baoshan Iron & Steel Co., Ltd.
Shuangjie Chu
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Manufacturing method for high silicon grain oriented electrical ste...
Patent number
11,608,541
Issue date
Mar 21, 2023
Baoshan Iron & Steel Co., Ltd.
Huabing Zhang
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and method for producing thereof
Patent number
11,603,575
Issue date
Mar 14, 2023
Nippon Steel Corporation
Takashi Kataoka
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and method for manufacturing...
Patent number
11,603,572
Issue date
Mar 14, 2023
POSCO Co., Ltd
Kyung-Jun Ko
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and method for manufacturing...
Patent number
11,591,668
Issue date
Feb 28, 2023
Nippon Steel Corporation
Ichiro Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Grain-oriented electrical steel sheet and method for producing the...
Patent number
11,578,377
Issue date
Feb 14, 2023
JFE Steel Corporation
Ryuichi Suehiro
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing a grain-oriented electrical steel sheet
Patent number
11,572,602
Issue date
Feb 7, 2023
JFE Steel Corporation
Takeshi Omura
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and method for manufacturing...
Patent number
11,566,302
Issue date
Jan 31, 2023
JFE Steel Corporation
Takeshi Omura
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and method for producing grai...
Patent number
11,562,840
Issue date
Jan 24, 2023
Nippon Steel Corporation
Takashi Kataoka
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND...
Publication number
20250188560
Publication date
Jun 12, 2025
NIPPON STEEL CORPORATION
Satoshi ARAI
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF PRODUCING SAME
Publication number
20250179601
Publication date
Jun 5, 2025
JFE STEEL CORPORATION
Yoshiaki ZAIZEN
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF MANUFACTURING A GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20250154618
Publication date
May 15, 2025
JFE STEEL CORPORATION
Hirotaka INOUE
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF PRODUCTION OF SAME
Publication number
20250157708
Publication date
May 15, 2025
NIPPON STEEL CORPORATION
Masato YASUDA
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20250146096
Publication date
May 8, 2025
JFE STEEL CORPORATION
Rieko IZUMI
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20250122589
Publication date
Apr 17, 2025
JFE STEEL CORPORATION
Kai KAWAHARA
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING...
Publication number
20250118468
Publication date
Apr 10, 2025
NIPPON STEEL CORPORATION
Haruhiko ATSUMI
C21 - METALLURGY OF IRON
Information
Patent Application
AGING TREATMENT METHOD AND METHOD OF PRODUCING GRAIN-ORIENTED ELECT...
Publication number
20250109451
Publication date
Apr 3, 2025
JFE STEEL CORPORATION
Ayaka SERA
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20250101561
Publication date
Mar 27, 2025
JFE STEEL CORPORATION
Takeshi IMAMURA
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD OF SAME
Publication number
20250051871
Publication date
Feb 13, 2025
POSCO Co., Ltd
Hyun-Seok KO
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET, METHOD FOR MANUFACTURING GRA...
Publication number
20250019788
Publication date
Jan 16, 2025
NIPPON STEEL CORPORATION
Ryutaro YAMAGATA
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME,...
Publication number
20250014793
Publication date
Jan 9, 2025
JEF STEEL CORPORATION
Shigehiro TAKAJYO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND ROLLI...
Publication number
20240287659
Publication date
Aug 29, 2024
JFE STEEL CORPORATION
Yusuke SHIMOYAMA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240282491
Publication date
Aug 22, 2024
JFE STEEL CORPORATION
Masanori Takenaka
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND ROLLI...
Publication number
20240279763
Publication date
Aug 22, 2024
JFE STEEL CORPORATION
Yusuke SHIMOYAMA
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240271254
Publication date
Aug 15, 2024
JFE STEEL CORPORATION
Masanori Takenaka
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240271241
Publication date
Aug 15, 2024
JFE STEEL CORPORATION
Takashi TERASHIMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD OF MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240263285
Publication date
Aug 8, 2024
JFE STEEL CORPORATION
Takeshi IMAMURA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240249863
Publication date
Jul 25, 2024
JFE STEEL CORPORATION
Takeshi IMAMURA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF DETERMINING FINAL ANNEALING CONDITIONS FOR GRAIN-ORIENTED...
Publication number
20240247333
Publication date
Jul 25, 2024
JFE STEEL CORPORATION
Makoto WATANABE
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240247347
Publication date
Jul 25, 2024
JFE STEEL CORPORATION
Masanori Takenaka
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240240293
Publication date
Jul 18, 2024
JFE STEEL CORPORATION
Takeshi IMAMURA
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MAGNETIC-DOMAI...
Publication number
20240186041
Publication date
Jun 6, 2024
POSCO Co., Ltd
Ohyeoul Kwon
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240186042
Publication date
Jun 6, 2024
NIPPON STEEL CORPORATION
Shinsuke TAKATANI
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR FORMING INSULA...
Publication number
20240186039
Publication date
Jun 6, 2024
NIPPON STEEL CORPORATION
Kazutoshi TAKEDA
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING...
Publication number
20240177899
Publication date
May 30, 2024
NIPPON STEEL CORPORATION
Takashi KATAOKA
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING...
Publication number
20240177901
Publication date
May 30, 2024
NIPPON STEEL CORPORATION
Masataka IWAKI
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240153684
Publication date
May 9, 2024
NIPPON STEEL CORPORATION
Takeaki WAKISAKA
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING SAME
Publication number
20240102122
Publication date
Mar 28, 2024
LG ELECTRONICS INC.
Yunsung KIM
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME
Publication number
20240105369
Publication date
Mar 28, 2024
JFE STEEL CORPORATION
Makoto Watanabe
C21 - METALLURGY OF IRON