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:
Aug. 23, 2011
Filed:
Jan. 21, 2009
Masao Kikuchi, Tokyo, JP;
Yoshinobu Utsumi, Tokyo, JP;
Hitoshi Isoda, Tokyo, JP;
Yuji Shirakata, Tokyo, JP;
Masahiko Fujita, Tokyo, JP;
Masao Kikuchi, Tokyo, JP;
Yoshinobu Utsumi, Tokyo, JP;
Hitoshi Isoda, Tokyo, JP;
Yuji Shirakata, Tokyo, JP;
Masahiko Fujita, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
There is provided a rotating electric machine including a rotation sensor unit capable of demonstrating a shielding effect over a wide frequency bandwidth and a manufacturing method therefor. In the rotating electric machine, a power unit provided with a switching element that controls an electric current that flows in a stator winding and a magnetic-field current control circuit unit provided with a switching element that controls an electric current that flows in a rotor winding are arranged on a predetermined surface of one of a pair of brackets that pivotably support a rotor shaft, and the rotation sensor unit is disposed in the vicinity of the predetermined surface of the one bracket; The rotating electric machine is characterized in such a way that there is provided a ring-shaped member that is fixed on the outer surface of the rotation sensor unit, and the ring-shaped member is configured with a non-magnetic unit having an electric conductivity and a magnetic unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile