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. 18, 2006
Filed:
Jul. 15, 2004
Katsuaki Ando, Hekinan, JP;
Hiroyuki Takahashi, Okazaki, JP;
Katsuaki Ando, Hekinan, JP;
Hiroyuki Takahashi, Okazaki, JP;
Favess Co., Ltd, Okazaki, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
A variable reluctance-type resolver which does not deteriorate detecting accuracy, and which can fix the rotor to the rotate shaft cheaply is comprised of a statoron which coilsare wound, a rotor provided with protrude polesand an annular stoppermade of magnetic material. An outer diameter DS of the stopperis selected to be smaller than a valley diameter DR of the rotor. Leakage of the magnetic flux from the stator to the stopper is prevented, and the stopper made of the magnetic material can fix the rotor in cheaper way.