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C21D9/46
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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
C21D9/00
Heat treatment
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C21D9/46
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Patents Grants
last 30 patents
Information
Patent Grant
Hot-rolled steel sheet and method for manufacturing same
Patent number
12,264,374
Issue date
Apr 1, 2025
Nippon Steel Corporation
Daisuke Ito
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
High strength steel sheet and method for manufacturing the same
Patent number
12,264,378
Issue date
Apr 1, 2025
JFE Steel Corporation
Kazuki Endoh
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Non-oriented electrical steel sheet and method for producing same
Patent number
12,264,377
Issue date
Apr 1, 2025
POSCO Co., Ltd
June Soo Park
C21 - METALLURGY OF IRON
Information
Patent Grant
High-resistance steel strip comprising a temperature homogenisation...
Patent number
12,258,649
Issue date
Mar 25, 2025
DREVER INTERNATIONAL
Jean-Pierre Crutzen
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
High-strength steel sheet and method for producing same
Patent number
12,258,646
Issue date
Mar 25, 2025
JFE Steel Corporation
Hidekazu Minami
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
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...
Information
Patent Grant
High-strength galvanized steel sheet and method for manufacturing t...
Patent number
12,258,644
Issue date
Mar 25, 2025
JFE Steel Corporation
Hiroshi Hasegawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
High-strength steel sheet and method for producing the same
Patent number
12,258,645
Issue date
Mar 25, 2025
JFE Steel Corporation
Takuya Hirashima
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Hot-rolled steel sheet having excellent impact resistance, steel pi...
Patent number
12,258,657
Issue date
Mar 25, 2025
POSCO Co., Ltd
Hwan-Goo Seong
C21 - METALLURGY OF IRON
Information
Patent Grant
Surface-treated steel sheet
Patent number
12,252,802
Issue date
Mar 18, 2025
Nippon Steel Corporation
Kosuke Kawamoto
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Steel sheet and production method for same
Patent number
12,252,758
Issue date
Mar 18, 2025
Nippon Steel Corporation
Hiroyuki Kawata
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
High strength steel sheet having excellent workability and method f...
Patent number
12,252,759
Issue date
Mar 18, 2025
POSCO Co., Ltd
Jae-Hoon Lee
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel sheet and method for producing same
Patent number
12,247,263
Issue date
Mar 11, 2025
Nippon Steel Corporation
Kohichi Sano
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and method for manufacturing...
Patent number
12,247,291
Issue date
Mar 11, 2025
Nippon Steel Corporation
Fumiaki Takahashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot-dip Zn-based plated steel sheet
Patent number
12,247,293
Issue date
Mar 11, 2025
Nippon Steel Corporation
Takuya Mitsunobu
C21 - METALLURGY OF IRON
Information
Patent Grant
Aluminum-iron-plated steel sheet, having excellent mold wear resist...
Patent number
12,241,162
Issue date
Mar 4, 2025
Posco
Jin-Keun Oh
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for manufacturing an austenitic steel component and use of t...
Patent number
12,241,139
Issue date
Mar 4, 2025
OUTOKUMPU OYJ
Thomas Fröhlich
C21 - METALLURGY OF IRON
Information
Patent Grant
Wear resistant steel material with excellent cut crack resistance a...
Patent number
12,241,138
Issue date
Mar 4, 2025
Posco
Seng-Ho Yu
C21 - METALLURGY OF IRON
Information
Patent Grant
High-strength hot-rolled plated steel sheet, and method for produci...
Patent number
12,241,134
Issue date
Mar 4, 2025
POSCO Co., Ltd
Kyong Su Park
C21 - METALLURGY OF IRON
Information
Patent Grant
High-strength cold-rolled steel sheet and production method for same
Patent number
12,241,137
Issue date
Mar 4, 2025
JFE Steel Corporation
Yoshie Obata
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Cold rolled steel sheet for zirconium-based chemical conversion tre...
Patent number
12,234,556
Issue date
Feb 25, 2025
JFE Steel Corporation
Hayato Takeyama
C21 - METALLURGY OF IRON
Information
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
Grain-oriented electrical steel sheet with insulating film and meth...
Patent number
12,234,523
Issue date
Feb 25, 2025
JFE Steel Corporation
Karin Kokufu
C21 - METALLURGY OF IRON
Information
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
Steel
Patent number
12,227,817
Issue date
Feb 18, 2025
Nippon Steel Corporation
Shinichiro Tabata
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot-rolled steel sheet, hot-dip coated steel sheet, and method for...
Patent number
12,221,669
Issue date
Feb 11, 2025
Nippon Steel Corporation
Kentarou Hirata
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Acid-resistant steel sheet and manufacturing method therefor
Patent number
12,221,707
Issue date
Feb 11, 2025
POSCO Co., Ltd
Minho Jo
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
High-strength aluminum coated steel sheet having excellent anti-cor...
Patent number
12,221,700
Issue date
Feb 11, 2025
POSCO Co., Ltd
Suk-Kyu Lee
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Welded member of galvanized steel sheets
Patent number
12,221,701
Issue date
Feb 11, 2025
POSCO Co., Ltd
Ki-Cheol Kang
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Ultrahigh-strength steel having excellent cold workability and SSC...
Patent number
12,221,682
Issue date
Feb 11, 2025
POSCO Co., Ltd
Dae-Woo Kim
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
SURFACE-TREATED STEEL SHEET
Publication number
20250109500
Publication date
Apr 3, 2025
NIPPON STEEL CORPORATION
Atsuo SHIMIZU
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
COATING LIQUID FOR FORMING INSULATION COATING FOR GRAIN-ORIENTED EL...
Publication number
20250109452
Publication date
Apr 3, 2025
NIPPON STEEL CORPORATION
Shuichi YAMAZAKI
C21 - METALLURGY OF IRON
Information
Patent Application
HOT-ROLLED STEEL SHEET
Publication number
20250109467
Publication date
Apr 3, 2025
NIPPON STEEL CORPORATION
Daisuke ITO
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
METHOD AND SYSTEM FOR HEAT TREATMENT OF METAL ALLOY SHEET
Publication number
20250109469
Publication date
Apr 3, 2025
Peter VON CZARNOWSKI
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20250109453
Publication date
Apr 3, 2025
POSCO Co., Ltd
Jae-Hoon KIM
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL PLATE WITH GOOD MAGNETIC PERFORMANCE...
Publication number
20250109466
Publication date
Apr 3, 2025
Baoshan Iron & Steel Co., Ltd
Guobao Li
C21 - METALLURGY OF IRON
Information
Patent Application
HOT-STAMPING FORMED BODY
Publication number
20250108424
Publication date
Apr 3, 2025
NIPPON STEEL CORPORATION
Shingo FUJINAKA
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
HOT-DIP PLATED STEEL SHEET
Publication number
20250109477
Publication date
Apr 3, 2025
NIPPON STEEL CORPORATION
Kohei TOKUDA
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
METHOD OF PRODUCING HOT-ROLLED STEEL SHEET FOR NON-ORIENTED ELECTRI...
Publication number
20250101541
Publication date
Mar 27, 2025
JFE STEEL CORPORATION
Tomoyuki OKUBO
B22 - CASTING POWDER METALLURGY
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
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
TIN PLATE AND MANUFACTURING METHOD THEREFOR
Publication number
20250101540
Publication date
Mar 27, 2025
INSTITUTE OF RESEARCH OF IRON AND STEEL, JIANGSU PROVINCE/SHA-STEEL, CO. LTD...
Yifeng SONG
B22 - CASTING POWDER METALLURGY
Information
Patent Application
HIGH-STRENGTH STEEL AND METHOD OF MANUFACTURING THE SAME
Publication number
20250092481
Publication date
Mar 20, 2025
CHINA STEEL CORPORATION
Kuo-Cheng YANG
C21 - METALLURGY OF IRON
Information
Patent Application
ULTRA-HIGH STRENGTH COLD-ROLLED STEEL SHEET AND MANUFACTURING METHO...
Publication number
20250092482
Publication date
Mar 20, 2025
HYUNDAI STEEL COMPANY
Han Sol Maeng
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20250092483
Publication date
Mar 20, 2025
HYUNDAI STEEL COMPANY
Kyeong Sik Shin
C21 - METALLURGY OF IRON
Information
Patent Application
PLATED STEEL SHEET HAVING EXCELLENT STRENGTH, FORMABILITY AND SURFA...
Publication number
20250092484
Publication date
Mar 20, 2025
POSCO CO., LTD.
Yu-Mi HA
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH STRENGTH AND HIGH FORMABILITY STEEL SHEET HAVING EXCELLENT SPO...
Publication number
20250084517
Publication date
Mar 13, 2025
POSCO CO., LTD
Sung-Kyu Kim
C21 - METALLURGY OF IRON
Information
Patent Application
GALVANIZED STEEL SHEET AND MEMBER, AND METHOD OF PRODUCING SAME
Publication number
20250084501
Publication date
Mar 13, 2025
JFE STEEL CORPORATION
Sho HIGUCHI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
HIGH-STRENGTH STEEL SHEET AND METHOD FOR PRODUCING SAME
Publication number
20250084515
Publication date
Mar 13, 2025
JFE STEEL CORPORATION
Ryohei MORIMOTO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
HOT STAMPED BODY
Publication number
20250084518
Publication date
Mar 13, 2025
NIPPON STEEL CORPORATION
Hitomi NISHIBATA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
ULTRA-HIGH STRENGTH GALVANIZED STEEL SHEET WITH EXCELLENT WELDABILI...
Publication number
20250075286
Publication date
Mar 6, 2025
HYUNDAI STEEL COMPANY
Min Suh Park
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20250075284
Publication date
Mar 6, 2025
POSCO CO., LTD
Soobin Kwon
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH STEEL SHEET AND METHOD FOR PRODUCING SAME
Publication number
20250075285
Publication date
Mar 6, 2025
JFE STEEL CORPORATION
Ryohei MORIMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
HOT STAMPED STEEL PLATE WITH AL-ZN-MG-SI PLATING AND HOT STAMPING M...
Publication number
20250075292
Publication date
Mar 6, 2025
Baoshan Iron & Steel Co., Ltd
Wenzhen BI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT BENDING WORK...
Publication number
20250066870
Publication date
Feb 27, 2025
POSCO CO., LTD.
Hang-Sik CHO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND MOTOR CORE COMPRISING SAME
Publication number
20250066892
Publication date
Feb 27, 2025
POSCO CO., LTD
Soobin Kwon
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET FOR HOT-STAMPING, METHOD FOR MANUFACTURING STEEL SHEET...
Publication number
20250066887
Publication date
Feb 27, 2025
NIPPON STEEL CORPORATION
Masafumi AZUMA
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND MANUFACTURING METHOD THE...
Publication number
20250066885
Publication date
Feb 27, 2025
POSCO CO., LTD
Kyungjun Ko
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...