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:
Apr. 25, 2023
Filed:
Apr. 16, 2020
Nippon Steel Corporation, Tokyo, JP;
Kohei Tokuda, Tokyo, JP;
Mamoru Saito, Tokyo, JP;
Jun Maki, Tokyo, JP;
Takuya Mitsunobu, Tokyo, JP;
Yasuto Goto, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A hot-dip coated steel product including: a steel product; and a coating layer including a Zn—Al—Mg alloy layer disposed on a surface of the steel product, in which the Zn—Al—Mg alloy layer includes a Zn phase, an Al phase, and a MgZnphase, and contains a Mg—Sn intermetallic compound phase in the Zn phase, and the coating layer has a chemical composition satisfying a predetermined average composition, a total area proportion of the Al phase and the MgZnphase is 70% or more, an area proportion of the Zn phase is 30% or less, an average value of cumulative circumferential lengths of the Al phase is less than 88 mm/mm, and a total frequency in number of the Al phase having a circumferential length of 50 μm or more is less than 100.