公开(公告)号：US12204003B2

公开(公告)日：2025-01-21

申请号：US17955819

申请日：2022-09-29

Applicant: TDK CORPORATION

Inventor： Daichi Takano ,  Norikazu Ota ,  Hiraku Hirabayashi ,  Kazuya Watanabe

IPC: G01R33/09 ,  G01R33/00

Abstract: An MR element includes a first magnetic layer, a second magnetic layer, and a nonmagnetic layer disposed between the first magnetic layer and the second magnetic layer. The first magnetic layer has a magnetic shape anisotropy set in a first reference direction, and has a magnetization whose direction changes depending on an external magnetic field, the magnetization being oriented in a first magnetization direction in a state where the external magnetic field is not applied. The second magnetic layer has a magnetic shape anisotropy set in a second reference direction, and has a magnetization whose direction changes depending on the external magnetic field, the magnetization being oriented in a second magnetization direction in a state where the external magnetic field is not applied.

公开(公告)号：US12253580B2

公开(公告)日：2025-03-18

申请号：US17949557

申请日：2022-09-21

Applicant: TDK CORPORATION

Inventor： Takehiro Isoda ,  Norikazu Ota ,  Daichi Takano ,  Kenji Inage

IPC: G01R33/09 ,  G01R33/02

Abstract: A magnetic sensor includes a plurality of resistor sections each including a plurality of MR elements, and a plurality of protruding surfaces each structured to cause the plurality of MR elements to detect a specific component of a target magnetic field. The plurality of MR elements are disposed dividedly in first to fourth areas corresponding respectively to the plurality of resistor sections. The plurality of protruding surfaces include a structural body extending across at least two of the first to fourth areas.