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:
Oct. 20, 2026
Filed:
Oct. 12, 2022
Jfe Steel Corporation, Tokyo, JP;
Yukichika Hashizume, Tokyo, JP;
Takeshi Matsuda, Tokyo, JP;
JFE STEEL CORPORATION, Chiyoda-ku, JP;
Abstract
Provided is a surface-treated galvanized steel sheet that has excellent delayed fracture resistance and that can be manufactured at low cost. The surface-treated galvanized steel sheet includes a steel sheet having a tensile strength of 1180 MPa or more, a galvanized layer, and a coating, where the coating contains an additive in an amount of 10 mass % or more and 50 mass % or less in terms of solid content. The additive is at least one selected from the group consisting of a salt of an aliphatic dicarboxylic acid having 2 to 8 carbon atoms and an alkylamine having 6 to 18 carbon atoms; a salt of an aliphatic dicarboxylic acid having 2 to 8 carbon atoms and a cycloalkylamine having 6 to 18 carbon atoms; and a salt of an aromatic monocarboxylic acid having 7 to 12 carbon atoms and an alkylamine having 6 to 18 carbon atoms.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile