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:
Jan. 27, 2026
Filed:
Jan. 25, 2024
Nippon Steel Corporation, Tokyo, JP;
Takashi Matsuno, Tokyo, JP;
Akira Egami, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A sheet-shaped blank () for press forming is produced by shearing a metal sheet (). The blank () includes a sheared edge (), which includes a sheared surface () and a fractured surface () in the sheet thickness direction and has a loop shape in plan view. In plan view, an edge of the sheared edge () includes concavely curved portions (). The average of lengths of the fractured surface () in the sheet thickness direction in the curved portions () is greater than the average of lengths of the fractured surface () in the sheet thickness direction over the entire perimeter of the sheared edge ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile