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:
Apr. 07, 2009
Filed:
Jan. 27, 2006
Motokazu Kuroda, Tokyo, JP;
Kyoko Higashino, Tokyo, JP;
Motokazu Kuroda, Tokyo, JP;
Kyoko Higashino, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A brushless alternator includes: a rotor mounted on a shaft; a ring-shaped yoke which is opposed to the rotor via a very narrow radial clearance; a stepped portion provided on a side surface of an inner circumference of an axial end section of the yoke; a plate fixed to the stepped portion and having a cylindrical portion made of a magnetic material; a bobbin provided so as to surround a radially outer side of the cylindrical portion of the plate for the purpose of winding a field coil therearound; and a stator provided with a clearance retained on an outer side of the rotor, wherein a radial thickness of a part of the cylindrical portion which is fixed to the stepped portion provided on the inner circumferential surface of the yoke is set larger than 1 mm and not larger than 2 mm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile