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:
Sep. 15, 1992
Filed:
Jun. 05, 1991
Hiromasa Ozawa, Himeji, JP;
Mitsubishi Denki K.K., Tokyo, JP;
Abstract
The present invention relates to an angle detection sensor including: a magnetoresistive element in which a bias magnet is laminated on a magnetic pattern resistance layer of a thin film ferromagnetic material, and a permanent magnet fixed to a rotation shaft which rotates about the center of the magnetoresistive element. In particular, when a rotation angle of the permanent magnet is large, a ratio of a first magnetic force of said permanent magnet to a second magnetic force of said bias magnet is set to be smaller than 1, and, when the rotation angle of the permanent magnet is small, the ratio of the first magnetic force of the permanent magnet to the second magnetic force of the bias magnet is set to be larger than 1.