Title:
磁気センサ
Document Type and Number:
Japanese Patent JP7001513
Kind Code:
B2
Abstract:
A magnetic sensor includes a radial magnetoresistance element including plural magnetic sensing parts arranged radially from one point, an annular or polygonal magnetoresistance element arranged so as to surround the radial magnetoresistance elements, and at least one half-bridge circuit including the radial magnetoresistance element and the annular or polygonal magnetoresistance element. The radial magnetoresistance element may include a first magnetoresistance element including plural first magnetic sensing parts and a second magnetoresistance element including plural second magnetic sensing parts. The annular or polygonal magnetoresistance element may include an annular or polygonal third magnetoresistance element surrounding the first and second magnetoresistance elements and an annular or polygonal fourth magnetoresistance element surrounding the third magnetoresistance element. Two half-bridge circuits including the first to fourth magnetoresistance elements may be installed in the magnetic sensor.
Inventors:
Naoki Isobe
Application Number:
JP2018054391A
Publication Date:
January 19, 2022
Filing Date:
March 22, 2018
Export Citation:
Assignee:
Tokai Rika Electric Co., Ltd.
International Classes:
G01R33/09; H01L43/08
Domestic Patent References:
| JP2008101954A | ||||
| JP2013250182A | ||||
| JP9102638A | ||||
| JP9102638A |
Foreign References:
| WO2016013347A1 | ||||
| US20140218018 | ||||
| US7279891 | ||||
| WO2017140877A1 | ||||
| CN104981704A |
Attorney, Agent or Firm:
Hirata International Patent Office