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. 20, 1997
Filed:
Jun. 20, 1995
Harumasa Shibata, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A rotation sensor device capable of detecting rotation speed of a rotatable magnetic member with high accuracy and reliability even in a low rotation speed range and a method of manufacturing the same through simplified process. As a means for detecting a rotation frequency of a toothed-wheel-like rotatable magnetic member (100), a permanent magnet (25) and a magneto-electric conversion element (22) are used. Conductors (24) having these elements (22; 25) mounted at a tip end portion is embedded integrally in a base (23) of a resin material through an insert molding process such that the elements (22; 25) and those portions of the conductors which constitute mounting electrodes are exposed at least partially on the surface of the base (23). Electronic parts (26) are packaged on the mounting electrode portions (24a).