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:
Nov. 20, 2012
Filed:
Dec. 14, 2007
Kengo Tanaka, Tokyo, JP;
Fumihiko Abe, Tokyo, JP;
Dongzhi Jin, Tokyo, JP;
The Furukawa Electric Co., Ltd, Tokyo, JP;
Abstract
To provide a rotation angle detector, which is characterized in that the rotation angle detector is for detecting a rotation angle of a measurable rotation body, by which it becomes able to measure the rotation angle of the measurable rotation body with an accuracy as higher even in a case where there may be happened such as an axial backlash or the like on an axis of rotation in the measurable rotation body, and then such a rotation angle detectorcomprises: a magnetic detecting element, for detecting a magnetic flux density of a magnetthat is designed to be attached onto the measurable rotation body and then to be rotated as integral with the measurable rotation body, wherein the magnetic detecting elementis arranged at a position as approximately intermediate in a path from a north pole to a south pole according to a line of magnetic force due to the magnet, and then thereby it becomes able to measure the rotation angle of the measurable rotation body with the accuracy as higher even in the case where there may be happened such as the axial backlash or the like on the axis of rotation in the measurable rotation body.