Title:
MAGNETIC SENSOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/221132
Kind Code:
A1
Abstract:
A magnetic sensor device 1 includes: a switching region 3 defined by a switching range L and a variability range H, where the switching range L is set in a stroke direction of a magnet 5 for generating a radial magnetic field 50 and is defined by a state switching start position 31 and end position 32, and the variability range H is set in a direction intersecting the stroke direction and is a range of variability of the position of the magnet 5; and a magnetic sensor 2 obtained by consecutively rotating a plurality of divided elements 21, obtained by dividing a circular magneto-resistive element 80 in such a way that a change in the magnetic resistance value from the start position 31 to the end position 32 relative to the magnetic field 50 of the magnet 5 in the switching region 3 increases, and rearranging the plurality of divided elements 21 around the switching region 3.
Inventors:
ISOBE NAOKI (JP)
Application Number:
PCT/JP2019/019157
Publication Date:
November 21, 2019
Filing Date:
May 14, 2019
Export Citation:
Assignee:
TOKAI RIKA CO LTD (JP)
International Classes:
G01R33/038; G01D5/16; G01R33/09; H01H13/00; H03K17/95; H03K17/97
Domestic Patent References:
| WO2016013347A1 | 2016-01-28 | |||
| WO2008130002A1 | 2008-10-30 |
Foreign References:
| JP2008101954A | 2008-05-01 | |||
| JPH09102638A | 1997-04-15 | |||
| JP2011038855A | 2011-02-24 | |||
| JP2010008160A | 2010-01-14 | |||
| JPH06288770A | 1994-10-18 | |||
| JP2009198215A | 2009-09-03 | |||
| US20150309127A1 | 2015-10-29 |
Attorney, Agent or Firm:
HIRATA & PARTNERS (JP)
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