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:
May. 30, 2017

Filed:

Apr. 17, 2013
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Takamoto Furuichi, Nagoya, JP;

Toshifumi Yano, Obu, JP;

Hisanori Yokura, Nagoya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 35/00 (2006.01); G01R 33/09 (2006.01); B82Y 25/00 (2011.01);
U.S. Cl.
CPC ...
G01R 35/00 (2013.01); G01R 33/093 (2013.01); G01R 33/096 (2013.01); G01R 33/098 (2013.01); B82Y 25/00 (2013.01);
Abstract

A TMR element and a corrective AMR element are series-connected between a power supply and a ground. The resistance value of the corrective AMR element is set so as to offset an output error in the rotation angle of an external magnetic field, which is included in the resistance value of the TMR element. The resistance value of the corrective AMR element is smaller than that of the TMR element. An increased voltage can be applied from the power supply to the TMR element. It is possible to increase, in the resistance value of the TMR element, the amount of change that depends on the rotation angle of the external magnetic field. This makes it possible to increase, in the output of a magnetic sensor, the amount of change that depends on the rotation angle of the external magnetic field. The sensitivity of the magnetic sensor can be increased.


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