公开(公告)号：US20230092845A1

公开(公告)日：2023-03-23

申请号：US17945485

申请日：2022-09-15

Applicant: TDK CORPORATION

Inventor： Hiromichi UMEHARA ,  Keisuke TAKASUGI ,  Takehiro ISODA ,  Kenji INAGE

IPC: G01R33/09 ,  G01R33/02 ,  G01R33/00

Abstract: A magnetic sensor includes an insulating layer including a flat portion and a protruding portion, a first MR element, and a second MR element. The protruding portion includes a first inclined surface and a second inclined surface. The first MR element is disposed on the first inclined surface. The second MR element is disposed on the second inclined surface. The protruding portion extends in a first direction parallel to a top surface of a substrate, and includes a plurality of recess portions each recessed in a direction parallel to the top surface of the substrate at an end of the protruding portion in the first direction.

公开(公告)号：US20230087727A1

公开(公告)日：2023-03-23

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.

公开(公告)号：US20250003770A1

公开(公告)日：2025-01-02

申请号：US18751399

申请日：2024-06-24

Applicant: TDK Corporation

Inventor： Takehiro ISODA ,  Takafumi KOBAYASHI

IPC: G01D5/16 ,  G02B7/08

Abstract: A magnetic sensor includes a soft magnetic structure including at least one yoke, and magnetoresistive (MR) elements configured to detect a magnetic field generated by the at least one yoke, the MR elements being adjacent to the at least one yoke in a transverse direction of the at least one yoke. The soft magnetic structure further includes at least one additional magnetic body arranged next to the at least one yoke in a longitudinal direction of the at least one yoke and located off the at least one yoke in an orthogonal direction orthogonal to the longitudinal direction.

公开(公告)号：US20240310460A1

公开(公告)日：2024-09-19

申请号：US18541031

申请日：2023-12-15

Applicant: TDK CORPORATION

Inventor： Takehiro ISODA ,  Norikazu OTA ,  Kazuya WATANABE ,  Hiraku HIRABAYASHI

IPC: G01R33/09 ,  H10N50/01 ,  H10N50/10 ,  H10N50/80

CPC classification number: G01R33/091 ,  G01R33/093 ,  H10N50/01 ,  H10N50/10 ,  H10N50/80

Abstract: A magnetic sensor includes a soft magnetic body having a first end surface and a second end surface located on opposite sides, a first MR element located near the first end surface, a second MR element located near the second end surface, and a first lead that electrically connects the first MR element and the second MR element and includes a portion overlapping the soft magnetic body when observed in a second direction orthogonal to a first direction in which the first and second MR elements are arranged.