The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2026
Filed:
Aug. 28, 2020
Applicant:
Posco, Pohang-si, KR;
Inventors:
Jae-Yong Chae, Pohang-si, KR;
Hong-Ju Lee, Pohang-si, KR;
Assignee:
POSCO, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/46 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/28 (2006.01); C22C 38/30 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 6/007 (2013.01); C21D 6/008 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0263 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/28 (2013.01); C22C 38/30 (2013.01); C21D 2211/002 (2013.01); C21D 2211/008 (2013.01);
Abstract
A steel plate used in fields, such as industrial machinery, having excellent low-temperature impact toughness along with high strength and high hardness, and a method for manufacturing the same. The steel plate includes, by weight: 0.8 to 1.2% of carbon (C), 0.1 to 0.6% of manganese (Mn), 0.05 to 0.5% of silicon (Si), 0.02% or less of phosphorus (P), 0.01% or less of sulfur(S), 1.2 to 1.6% of chromium (Cr), and 1.0 to 2.0% of cobalt (Co), with a balance of Fe and other unavoidable impurities.
Chae, Jae-Yong. (2026). Steel plate having excellent strength and low-temperature impact toughness and method for manufacturing same (U.S. Patent No. 12522886). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12522886
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile