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:
May. 21, 2019
Filed:
Jul. 13, 2016
Igarashi Electric Works Ltd., Kawasaki-shi, Kanagawa, JP;
Junichi Tada, Kawasaki, JP;
IGARASHI ELECTRIC WORKS LTD., Kawasaki-shi, Kanagawa, JP;
Abstract
A rotation angle detecting device and an electric motor provided with the rotation angle detecting device. The rotation angle detecting device has both a reduced thickness and outer diameter and is easily fixed to a small-sized electric motor. The rotation angle detecting device has a first sheet coil, provided with an excitation coil, mounted on a base fixed to a fixed body, a second sheet coil, provided with a detecting coil, mounted on a surface of a rotating plate opposite the base, the rotating plate is fixed to a rotating shaft, a third sheet coil, provided with a primary coil of an output transformer, mounted on another surface of the rotating plate opposing to a cover, and a fourth sheet coil, provided with a secondary coil of the output transformer, mounted on a facing surface of the cover opposite the rotating plate.