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.

Date of Patent:
Feb. 10, 2026

Filed:

Feb. 27, 2020
Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Takuya Mitsunobu, Tokyo, JP;

Takehiro Takahashi, Tokyo, JP;

Jun Maki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/06 (2006.01); B21D 22/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C23C 2/04 (2006.01); C23C 2/28 (2006.01);
U.S. Cl.
CPC ...
C22C 38/06 (2013.01); B21D 22/022 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C23C 2/04 (2013.01); C23C 2/28 (2013.01);
Abstract

A hot stamped body comprising a steel base material and an Al—Zn—Mg-based plating layer formed on a surface of the steel base material, wherein the plating layer has a predetermined chemical composition, the plating layer comprises an interfacial layer positioned at an interface with the steel base material and containing Fe and Al and a main layer positioned on the interfacial layer, the main layer comprises, by area ratio, 10.0 to 70.0% of an Mg—Zn containing phase and 30.0 to 90.0% of an Fe—Al containing phase, the Mg—Zn containing phase comprises at least one selected from the group consisting of an MgZn phase, MgZnphase, and MgZnphase, and the Fe—Al containing phase comprises an FeAl phase and Fe—Al—Zn phase and an area ratio of the Fe—Al—Zn phase in the main layer is more than 10.0 to 75.0%.


Find Patent Forward Citations

Loading…