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:
Feb. 17, 2026
Filed:
Apr. 10, 2020
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventors:
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 8/02 (2006.01); B21D 35/00 (2006.01); B21D 53/88 (2006.01); C21D 8/0221 (2026.01); C21D 9/46 (2006.01);
U.S. Cl.
CPC ...
C21D 8/0236 (2013.01); B21D 35/005 (2013.01); B21D 53/88 (2013.01); C21D 9/46 (2013.01);
Abstract
A blank () includes a main portion () that is made of steel having a tensile strength of 1450 MPa or more and a softened portion (), the ratio of Vickers hardness of the softened portion () to the Vickers hardness of the main portion () is 0.7 or more and 0.95 or less, and the softened portion () is disposed at a position different from a position of the main portion () in an in-plane direction. A structural member () includes a first member (), a second member (), and a weld (W) at which the first member () and the second member () are welded to each other.