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. 07, 2002
Filed:
Jul. 27, 2000
Katsuaki Yasui, Tokyo, JP;
Yutaka Ohashi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A torque sensing unit, sensor unit, and method for manufacturing the torque sensing unit. The torque sensing unit includes a first shaft and a second shaft rotatably arranged in a coaxial fashion, and a torsion bar for allowing a rotational displacement in response to a torque between the first shaft and the second shaft. Magnetic elements are used in conjunction with the shafts for sensing a reluctance which is changed in compliance with rotational phase differences between the magnetic elements. A sensor module is prepared in which the magnetic elements are temporarily fixed to have a predetermined neutral rotational phase difference. This temporary fixture is released after the first shaft , the second shaft , the torsion bar , and the sensor module have been assembled.