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:
Feb. 26, 2013
Filed:
Jun. 13, 2008
Mikihiro Ohshima, Fukui, JP;
Motoki Ogata, Fukui, JP;
Yoshinori Takashima, Fukui, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A non-contact position sensor includes a magnet, magnetoresistive elements arranged on a line extending in a predetermined direction on a pole surface of the magnet with predetermined intervals, and an object made of magnetic material displaceable in the predetermined direction. The magnetoresistive elements are connected serially between a power supply and a ground. A first magnetoresistive element is connected to the second magnetoresistive element at a first node. A second magnetoresistive element is connected to a third magnetoresistive element at a second node. The object includes a projection and a shaft connected to the projection. The projection can face the first to third magnetoresistive elements. The shaft is located away from the pole surface by a distance longer than a distance between the projection and the pole surface of the magnet.