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. 28, 2025
Filed:
Aug. 30, 2023
Denso Corporation, Kariya, JP;
Yuki Takahashi, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A field magneton constitutes a rotating electric machine including an armature having an armature winding and is arranged radially facing the armature. The field magneton includes a magnet having a plurality of magnetic poles with alternating polarities in a circumferential direction. The magnet is oriented so that a direction of an axis of easy magnetization on a d-axis side, which is a magnetic pole center, is closer to a direction of the d-axis than the direction of the axis of easy magnetization on a q-axis side, which is a magnetic pole boundary. In the magnet, a coefficient of linear expansion in the direction of the axis of easy magnetization is different from the coefficient of linear expansion in the direction perpendicular to the axis of easy magnetization.