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. 06, 2016
Filed:
Jun. 17, 2013
Jtekt Corporation, Osaka-shi, Osaka, JP;
Yoshiyuki Shibata, Toyota, JP;
JTEKT CORPORATION, Osaka, JP;
Abstract
A plurality of lamination steel sheets that form a rotor core are stacked so that the lamination steel sheets are angularly shifted from each other, and a plurality of cavities are formed. Permanent magnets are molded and disposed in the cavities by injection molding. Each permanent magnet has a uniform plate thickness, and is bent with respect to an axial direction so as to have a triangular wave shape or an S shape. The permanent magnets are magnetized after being disposed in the cavities. The paired magnet pieces have poles of the same polarity, which face each other in the circumferential direction of a rotor, and each of the magnet pieces is magnetized in directions of normals to a surface of the magnet piece, the surface having a linear sectional shape.