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.

Date of Patent:
Jul. 10, 2018

Filed:

Jun. 09, 2015
Applicant:

Mitsubishi Electric Corporation, Chiyoda-ku, JP;

Inventors:

Hiroyuki Asano, Chiyoda-ku, JP;

Tomokazu Ogomi, Chiyoda-ku, JP;

Kenji Shimohata, Chiyoda-ku, JP;

Sadaaki Yoshioka, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/02 (2006.01); G07D 7/04 (2016.01); G01R 33/09 (2006.01);
U.S. Cl.
CPC ...
G07D 7/04 (2013.01); G01R 33/09 (2013.01);
Abstract

A magnetic sensor device includes: a magnet; yokes arranged on the magnet; and a magnetoresistance effect element to which is applied a leakage magnetic field emitted from the yokes to an exterior thereof. A detection region of the magnetoresistance effect element is at the side opposite to the magnet. The magnetoresistance effect element detects a change of a bias magnetic field of the magnetoresistance effect element that occurs when the object to be detected including the hard magnetic material passes through the detection region. The magnetic sensor device can accurately detect an object to be detected using a hard magnetic material.


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