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:
Feb. 09, 2021
Filed:
May. 10, 2016
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Hiroshi Aida, Tokyo, JP;
Masafumi Okazaki, Tokyo, JP;
Satoru Akutsu, Tokyo, JP;
Yoshihito Asao, Tokyo, JP;
Yuji Takizawa, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/27 (2006.01); H02K 29/03 (2006.01);
U.S. Cl.
CPC ...
H02K 1/2766 (2013.01); H02K 29/03 (2013.01); H02K 2213/03 (2013.01);
Abstract
A permanent-magnet motor includes a through-hole expansion portion provided in a through-hole for inserting a permanent magnet into the rotor core of a permanent-magnet motor, and a bridge portion that surrounds adjacent through-hole expansion portions and forms part of the outer circumferential surface of the rotor core; the bridge portion has a small-thickness portion that is formed to be smaller than that of a portion, other than the bridge portion, of the rotor core.