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:
Apr. 26, 2022
Filed:
May. 24, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Koji Tamura, Tokyo, JP;
Shuichi Tamura, Tokyo, JP;
Akihiro Yamamura, Tokyo, JP;
Issei Doi, Tokyo, JP;
Hiroyuki Matsuo, Tokyo, JP;
Yasukazu Nishimura, Tokyo, JP;
Sachiko Kawasaki, Tokyo, JP;
Akihiko Mori, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A method of manufacturing an armature coil includes steps of arranging a plurality of coil conductors of the armature coil between an end metal die and a back portion metal die on a lower metal die; pressing, with the upper metal die in a pressing direction, the plurality of the coil conductors arranged between the end metal die and the back portion metal die on the lower metal die; and removing coil conductors that become formed in a convex shape and a concave shape from the lower metal die. The upper metal die may be provided with an inclined portion on a lower metal die side of the upper metal die, and the upper metal die may be configured to be pressed such that a space is formed by the dies, the space having a width that gets gradually narrower.