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. 21, 2017
Filed:
Jun. 26, 2013
Hitachi Metals, Ltd., Tokyo, JP;
Eiji Sugiyama, Takasaki, JP;
Masaaki Aoki, Takasaki, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A magnetic circuit that forms an arc-shaped magnetic field space is provided. Of two magnets constituting a first magnetic circuit, a first magnetic poleis provided with a first yokethat is arc-shaped in planar view, a first magnetthat is arc-shaped in planar view and a magnetic pole piece. On the other hand, a second magnetic poleis provided with a second yokethat is arc-shaped in planar view, a second magnetthat is arc-shaped in planar view and a magnetic pole piece. The first magnetic pole pieceand the second magnetic pole pieceare disposed so as to be opposed to each other while being separated from each other. The first magnetand the second magnetare formed by arranging a plurality of small magnets.