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:
Oct. 07, 2025
Filed:
May. 25, 2023
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Tomoaki Ihara, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
It is possible to improve heating efficiency of an end surface of an open trim edge. A processing method includes punching a steel plate to open a part of an end surface of the steel plate to form an open trim edge, and disposing a heating coil in a non-contact manner along the end surface of the open trim edge formed in the punching to sandwich the end surface of the open trim edge therebetween, and heating the end surface of the open trim edge by applying an alternating current to the heating coil to generate an induced electromotive force on the steel plate. A current direction of the heating coil disposed on one side of the end surface of the open trim edge is opposite to a current direction of the heating coil disposed on another side of the end surface of the open trim edge.