Patent ID: 11946975
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Measurement (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A magnetic sensor, comprising:
a first sensor part including
a first magnetic member,
a first counter magnetic member, a direction from the first magnetic member toward the first counter magnetic member being along a first direction, and
a first magnetic element including one or a plurality of first extension parts,

the first extension part including a first magnetic layer, a first counter magnetic layer, and a first nonmagnetic layer,
the first magnetic layer including a first portion, a first counter portion, and a first middle portion,
a direction from the first portion toward the first counter portion being along the first direction,
the first middle portion being between the first portion and the first counter portion,
the first nonmagnetic layer being between the first counter magnetic layer and at least a portion of the first middle portion in a second direction crossing the first direction,
wherein
an electrical resistance of the first magnetic element has a first value when a first magnetic field is applied to the first magnetic element,
the electrical resistance has a second value when a second magnetic field is applied to the first magnetic element,
the electrical resistance has a third value when a third magnetic field is applied to the first magnetic element,
an absolute value of the first magnetic field is less than an absolute value of the second magnetic field and less than an absolute value of the third magnetic field,
an orientation of the second magnetic field is opposite to an orientation of the third magnetic field, and
the first value is less than the second value and less than the third value.