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:
Sep. 06, 1983
Filed:
Sep. 17, 1980
Applicant:
Inventors:
Kunio Miyashita, Hitachi, JP;
Seizi Yamashita, Katsuta, JP;
Hiroshi Watanabe, Hitachi, JP;
Shoji Tanabe, Sakura, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310156 ;
Abstract
A permanent magnet rotor used in a synchronous motor or the like comprising a shaft, an iron core and permanent magnets is disclosed. Each of the permanent magnets which is mounted on the hollow rotor core has an arc shape, and the radial center of the arc shape is positioned on the axis of the shaft or at a point slightly deviated from the shaft axis.