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:
Sep. 14, 2021
Filed:
Oct. 30, 2019
Nippon Steel Corporation, Tokyo, JP;
Yasuhiro Ito, Tokyo, JP;
Hiroki Fujimoto, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
An automotive framework memberincludes a first steel sheet, a second steel sheet, and a first weld metal partjoining an interface between the first steel sheetand the second steel sheet, in which tensile strength of the first steel sheetis 1.0 GPa or more and 1.6 GPa or less, tensile strength of the second steel sheetis 1.8 GPa or more and 2.5 GPa or less, the first steel sheetincludes a groove part, the second steel sheetis overlapped with the groove part, and a minimum Vickers hardness of a region within 4 mm of a periphery of the first weld metal partof the second steel sheetis 80% or more of a hardness of an outside of the region of the second steel sheet