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. 13, 2018
Filed:
Jul. 08, 2011
Taizo Iwami, Chiyoda-ku, JP;
Sachiko Kawasaki, Chiyoda-ku, JP;
Hiroe Fukuzumi, Chiyoda-ku, JP;
Yoshinori Miyamoto, Chiyoda-ku, JP;
Taizo Iwami, Chiyoda-ku, JP;
Sachiko Kawasaki, Chiyoda-ku, JP;
Hiroe Fukuzumi, Chiyoda-ku, JP;
Yoshinori Miyamoto, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;
Abstract
In a permanent magnet type electric rotating machine, a rotor is arranged in a Halbach array, a main magnet magnetized in the radial direction is formed of a rare-earth magnet and an auxiliary magnet magnetized in the circumferential direction is formed of a ferrite magnet, and a gap is provided between the main magnet and the auxiliary magnet; as a result, the quantity of utilized rare-earth magnets is reduced without the output torque of the electric rotating machine being decreased.