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:
Mar. 11, 2014
Filed:
May. 09, 2009
Yoshimi Kikuchi, Nagano, JP;
Kanji Kitazawa, Nagano, JP;
Hisashi Mimura, Nagano, JP;
Minow Okada, Shichinohe-machi, JP;
Yoshimi Kikuchi, Nagano, JP;
Masahito Okada, Nagano, JP;
Kanji Kitazawa, Nagano, JP;
Hisashi Mimura, Nagano, JP;
Tamagawa Seiki Co., Ltd., Nagano, JP;
Abstract
An angle detection system of the present invention includes: a statorwhich includes a plurality of salient pole portions which are formed on a flat sheet made of a magnetic material and are raised by bending, each salient pole portion constituting a winding magnetic core on which a winding member for excitation and a winding member for detection are mounted; and a rotorwhich is made of a magnetic material and is configured to be rotatable relative to the stator such that gap permeance between the rotor and each salient pole portion is changed due to the rotation thereof about a rotational axis thereof. According to the angle detection device of the present invention, it is possible to provide the angle detection device which can largely reduce the number of parts and can realize the reduction of cost and the enhancement of reliability.