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C21D6/001
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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
C21D6/00
Heat treatment of ferrous alloys
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C21D6/001
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Patents Grants
last 30 patents
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Patent Grant
Grain-oriented electrical steel sheet and method for producing same
Patent number
12,354,778
Issue date
Jul 8, 2025
JFE Steel Corporation
Makoto Watanabe
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot stamped body
Patent number
12,344,924
Issue date
Jul 1, 2025
Nippon Steel Corporation
Shingo Fujinaka
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Steel sheet, member, and methods for producing the same
Patent number
12,338,505
Issue date
Jun 24, 2025
JFE Steel Corporation
Takuya Hirashima
C21 - METALLURGY OF IRON
Information
Patent Grant
Cold-rolled steel sheet and manufacturing method thereof
Patent number
12,331,379
Issue date
Jun 17, 2025
Nippon Steel Corporation
Takuya Nishio
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing a grain-oriented electrical steel sheet
Patent number
12,325,892
Issue date
Jun 10, 2025
JFE Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel plate for pressure vessel with excellent cryogenic lateral ex...
Patent number
12,305,250
Issue date
May 20, 2025
Posco
Soon-Taik Hong
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel sheet and manufacturing method thereof
Patent number
12,305,258
Issue date
May 20, 2025
Nippon Steel Corporation
Eriko Tsukamoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Electrical steel sheet and method for manufacturing same
Patent number
12,305,253
Issue date
May 20, 2025
Nippon Steel Corporation
Miho Tomita
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing grain-oriented electrical steel sheet
Patent number
12,305,255
Issue date
May 20, 2025
JFE Steel Corporation
Yuiko Ehashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet
Patent number
12,305,252
Issue date
May 20, 2025
Nippon Steel Corporation
Shinsuke Takatani
C21 - METALLURGY OF IRON
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Patent Grant
Steel sheet, member, and method for producing them
Patent number
12,297,515
Issue date
May 13, 2025
JFE Steel Corporation
Yoshiyasu Kawasaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing grain-oriented electrical steel sheet
Patent number
12,291,758
Issue date
May 6, 2025
JFE Steel Corporation
Yuiko Ehashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of producing high-strength hot-dip galvanized steel sheet
Patent number
12,276,006
Issue date
Apr 15, 2025
JFE Steel Corporation
Shunsuke Yamamoto
C21 - METALLURGY OF IRON
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Patent Grant
Steel sheet and method for manufacturing same
Patent number
12,270,088
Issue date
Apr 8, 2025
Nippon Steel Corporation
Eriko Tsukamoto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Steel sheet, member, and methods for manufacturing the same
Patent number
12,258,647
Issue date
Mar 25, 2025
JFE Steel Corporation
Yusuke Wada
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Rail
Patent number
12,247,358
Issue date
Mar 11, 2025
Nippon Steel Corporation
Masaharu Ueda
C21 - METALLURGY OF IRON
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Patent Grant
Electric resistance welded steel pipe or tube
Patent number
12,234,524
Issue date
Feb 25, 2025
JFE Steel Corporation
Yoshikazu Kawabata
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
Steel plate for pressure vessel with excellent cryogenic toughness...
Patent number
12,234,526
Issue date
Feb 25, 2025
POSCO HOLDINGS INC.
Soon-Taik Hong
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing electrode, and electrode
Patent number
12,234,563
Issue date
Feb 25, 2025
DE NORA PERMELEC LTD
Awaludin Zaenal
C21 - METALLURGY OF IRON
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Patent Grant
Metal plate for producing vapor deposition masks, production method...
Patent number
12,227,823
Issue date
Feb 18, 2025
Dai Nippon Printing Co., Ltd.
Hiroki Oka
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Alloyed galvanized steel sheet, electrodeposition-coated steel shee...
Patent number
12,221,705
Issue date
Feb 11, 2025
JFE Steel Corporation
Shunsuke Yamamoto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Hot-rolled steel sheet
Patent number
12,215,402
Issue date
Feb 4, 2025
Nippon Steel Corporation
Genki Abukawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Carbide-free tempered martensitic steels and preparation methods th...
Patent number
12,215,404
Issue date
Feb 4, 2025
BEIJING INSTITUTE OF TECHNOLOGY
Zhiping Xiong
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
High strength steel sheet, impact absorbing member, and method for...
Patent number
12,180,593
Issue date
Dec 31, 2024
JFE Steel Corporation
Yoshiyasu Kawasaki
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Steel sheet and plated steel sheet
Patent number
12,173,391
Issue date
Dec 24, 2024
Nippon Steel Corporation
Keitaro Matsuda
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
High-strength steel sheet and method for producing the same
Patent number
12,139,771
Issue date
Nov 12, 2024
JFE Steel Corporation
Lingling Yang
B32 - LAYERED PRODUCTS
Information
Patent Grant
Hot-stamping formed body
Patent number
12,129,534
Issue date
Oct 29, 2024
Nippon Steel Corporation
Yuri Toda
C21 - METALLURGY OF IRON
Information
Patent Grant
Metal plate for manufacturing deposition mask and manufacturing met...
Patent number
12,117,727
Issue date
Oct 15, 2024
Dai Nippon Printing Co., Ltd.
Hiroki Oka
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF PRODUCING SAME
Publication number
20250236925
Publication date
Jul 24, 2025
JFE STEEL CORPORATION
Yukihiro SHINGAKI
C21 - METALLURGY OF IRON
Information
Patent Application
ENAMELABLE STEEL SHEET AND METHOD OF MANUFACTURING THE SAME
Publication number
20250236936
Publication date
Jul 24, 2025
VOESTALPINE STAHL GMBH
Klemens MRACZEK
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
HIGH-STRENGTH STEEL SHEET AND METHOD FOR PRODUCING THE SAME
Publication number
20250207215
Publication date
Jun 26, 2025
JFE STEEL CORPORATION
Kohei KAWAZOME
C21 - METALLURGY OF IRON
Information
Patent Application
TWIP STEEL SHEET HAVING AN AUSTENITIC MATRIX
Publication number
20250207216
Publication date
Jun 26, 2025
ARCELORMITTAL
Colin SCOTT
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
STEEL PLATE AND METHOD OF PRODUCING SAME
Publication number
20250207232
Publication date
Jun 26, 2025
JFE STEEL CORPORATION
Yuya SATO
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET
Publication number
20250197984
Publication date
Jun 19, 2025
JFE STEEL CORPORATION
Shunsuke YAMAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
Publication number
20250197959
Publication date
Jun 19, 2025
JFE STEEL CORPORATION
Junya Tobata
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PLATE AND METHOD OF PRODUCING SAME
Publication number
20250197980
Publication date
Jun 19, 2025
JFE STEEL CORPORATION
Yuya SATO
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
STEEL SHEET, MEMBER, AND METHODS OF PRODUCING SAME
Publication number
20250179602
Publication date
Jun 5, 2025
JFE STEEL CORPORATION
Shimpei YOSHIOKA
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET, MEMBER, METHODS FOR MANUFACTURING THE SAME, METHOD FOR...
Publication number
20250171869
Publication date
May 29, 2025
JFE STEEL CORPORATION
Shinsuke KOMINE
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
HOT PRESS-FORMED PART AND MANUFACTURING METHOD THEREOF
Publication number
20250153234
Publication date
May 15, 2025
POSCO CO., LTD
Sang-Heon Kim
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
STEEL PLATE FOR PRESSURE VESSEL WITH EXCELLENT CRYOGENIC TOUGHNESS...
Publication number
20250154620
Publication date
May 15, 2025
POSCO CO., LTD.
Soon-Taik Hong
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING THE SAME
Publication number
20250146093
Publication date
May 8, 2025
JFE STEEL CORPORATION
Tomoyuki OKUBO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET, MOTOR CORE, METHOD FOR MANUFAC...
Publication number
20250140456
Publication date
May 1, 2025
NIPPON STEEL CORPORATION
Ichiro TANAKA
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
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF PRODUCING SAME
Publication number
20250101542
Publication date
Mar 27, 2025
JFE STEEL CORPORATION
Yoshiaki ZAIZEN
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET AND METHOD OF PRODUCTION OF SAME
Publication number
20250075283
Publication date
Mar 6, 2025
NIPPON STEEL CORPORATION
Kengo TAKEDA
C21 - METALLURGY OF IRON
Information
Patent Application
METAL PLATE FOR PRODUCING VAPOR DEPOSITION MASKS, PRODUCTION METHOD...
Publication number
20250043399
Publication date
Feb 6, 2025
DAI NIPPON PRINTING CO., LTD.
Hiroki OKA
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
CARBIDE-FREE TEMPERED MARTENSITIC STEELS AND PREPARATION METHODS TH...
Publication number
20250043377
Publication date
Feb 6, 2025
Beijing Institute of Technology
Zhiping XIONG
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET, IRON CORE AND MOTOR CORE, AND...
Publication number
20250022639
Publication date
Jan 16, 2025
NIPPON STEEL CORPORATION
Yoshiaki NATORI
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
STEEL SHEET, MEMBER, AND METHODS FOR MANUFACTURING THEM
Publication number
20240425943
Publication date
Dec 26, 2024
JFE STEEL CORPORATION
Tadachika Chiba
C21 - METALLURGY OF IRON
Information
Patent Application
COLD-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20240417820
Publication date
Dec 19, 2024
NIPPON STEEL CORPORATION
Takuya NISHIO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
HOT-ROLLED STEEL SHEET
Publication number
20240384381
Publication date
Nov 21, 2024
NIPPON STEEL CORPORATION
Takeshi TOYODA
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET FOR HOT STAMPING AND HOT STAMPED PRODUCT
Publication number
20240376580
Publication date
Nov 14, 2024
NIPPON STEEL CORPORATION
Jun HAGA
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
HIGH STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
Publication number
20240376562
Publication date
Nov 14, 2024
JFE STEEL CORPORATION
Junya Tobata
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET AND METHOD OF PRODUCING SAME
Publication number
20240352552
Publication date
Oct 24, 2024
Cleveland-Cliffs Steel Properties Inc.
Amrinder Singh Gill
C21 - METALLURGY OF IRON
Information
Patent Application
COLD-ROLLED STEEL SHEET AND MANUFACTURING METHOD THEREOF
Publication number
20240309482
Publication date
Sep 19, 2024
NIPPON STEEL CORPORATION
Takuya NISHIO
C21 - METALLURGY OF IRON
Information
Patent Application
HOT-ROLLED STEEL SHEET
Publication number
20240301537
Publication date
Sep 12, 2024
NIPPON STEEL CORPORATION
Mitsuru YOSHIDA
C21 - METALLURGY OF IRON