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:
May. 26, 2026
Filed:
Mar. 28, 2022
Nippon Steel Corporation, Tokyo, JP;
Yasuo Ohsugi, Tokyo, JP;
Rei Honma, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A rotor core includes plural holes in which permanent magnets are installed, wherein: at least one of the plural holes includes a first end portion positioned on a leading side in a rotational direction, and a second end portion positioned on a trailing side in the rotational direction; the hole in which the first end portion is open has an inner space and a first outer space that communicates with the inner space, has the first end portion as one end portion of the hole in a left and right direction, and is wider than the inner space; and the first end portion is disposed off-center on the trailing side in the rotational direction relative to a circumferential direction center position of the inner space at the position where the inner space communicates with the first outer space.