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:
Dec. 30, 2025
Filed:
May. 13, 2021
Nippon Steel Corporation, Tokyo, JP;
Satoshi Hirose, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A columnar member able to absorb more energy at the time of collision without an accompanying increase in weight, that is, a columnar memberhaving at least a top plateand two vertical wallsconnected to the top plateat ridge partsat both side edgesof the top plate and extending along the ridge parts, which columnar member having a bend inducing partat least at part of the top plateand having soft partsat the two vertical wallsat positions adjoining the ridge partsand corresponding to the bend inducing partin a direction of extension of the columnar member, the bend inducing partbeing a part with a strength lower than the parts adjoining the bend inducing partat the top plate, the soft partsbeing parts with yield strengths lower than the parts adjoining the soft partsat the vertical walls, maximum lengths of the soft partsin the direction of extension of the columnar memberbeing 0.01 time to 0.15 time the heights of the vertical walls