公开(公告)号：US11676744B2

公开(公告)日：2023-06-13

申请号：US17669755

申请日：2022-02-11

Applicant: TDK CORPORATION

Inventor： Susumu Aoki ,  Shinji Hara ,  Naoki Ohta ,  Maiko Shirokawa

IPC: H01C7/00 ,  G01J5/20 ,  H01C1/14 ,  G01J5/00

CPC classification number: H01C7/008 ,  G01J5/20 ,  H01C1/14 ,  G01J2005/0077 ,  G01J2005/202

Abstract: A thermistor element includes: a thermistor film; a pair of first electrodes in contact with one surface of the thermistor film; an insulation film opposite to a contact side of the pair of first electrodes, the contact side on which the pair of first electrodes is in contact with the thermistor film; and at least one opening portion located in a region which overlaps each of the first electrodes when viewed in a plan view and passing through the insulation film. Each first electrode has a first portion located where each of the first electrodes and the opening portion overlap when viewed in a plan view and a second portion outside of where each of the first electrodes and the opening portion overlap when viewed in a plan view and is over the first portion and second portion to be in contact with the one surface of the thermistor film.

公开(公告)号：US11668607B2

公开(公告)日：2023-06-06

申请号：US17540004

申请日：2021-12-01

Applicant: TDK CORPORATION

Inventor： Maiko Shirokawa ,  Shinji Hara ,  Naoki Ohta ,  Susumu Aoki ,  Eiji Komura

IPC: G01J5/22 ,  G01J5/0831 ,  G01J5/20

CPC classification number: G01J5/22 ,  G01J5/0831 ,  G01J2005/202

Abstract: A thermistor element includes a thermistor film, a first electrode provided in contact with one surface of the thermistor film, and a pair of second electrodes provided in contact with the other surface of the thermistor film, wherein the thermistor film includes an oxide having a spinel crystal structure and having a [111] preferred orientation in a film thickness direction.

公开(公告)号：US11543473B2

公开(公告)日：2023-01-03

申请号：US17355676

申请日：2021-06-23

Applicant: TDK Corporation

Inventor： Naoki Ohta ,  Kazuya Watanabe

IPC: G01R33/24 ,  G01R33/038

Abstract: A magnetic sensor includes a base material, a plurality of magnets provided at predetermined spacing on the base material, and a plurality of magnetic detection parts respectively provided close to the plurality of magnets. Each of the plurality of magnetic detection parts outputs a signal in accordance with change in the magnetic field accompanying deformation of the base material.

公开(公告)号：US11536784B2

公开(公告)日：2022-12-27

申请号：US17498165

申请日：2021-10-11

Applicant: TDK Corporation

Inventor： Naoki Ohta ,  Hiroshi Yamazaki ,  Satoshi Miura ,  Kenkichi Anagawa ,  Yosuke Komasaki

IPC: G01R33/09 ,  H01L43/12

Abstract: A magnetic sensor comprising a resin layer having a first surface and a second surface, which is opposite to the first surface and a magnetoresistive effect unit that detects a magnetic field in a predetermined direction, wherein the magnetoresistive effect unit includes at least a first magnetoresistive effect unit that detects a magnetic field in a first direction, the first direction is a direction orthogonal to the first surface of the resin layer, an inclined surface that is inclined at a predetermined angle with respect to the first surface is formed in the first surface of the resin layer, and the first magnetoresistive effect unit is formed in the inclined surface.

公开(公告)号：US11189551B2

公开(公告)日：2021-11-30

申请号：US16184424

申请日：2018-11-08

Applicant: TDK CORPORATION

Inventor： Naoki Ohta ,  Keita Miyachi

IPC: H01L23/495 ,  H01L23/31

Abstract: A semiconductor device according to an embodiment of the disclosure includes a base, a semiconductor element, a first conductor, and a second conductor. The base has an outer edge including a first part, a second part, and a third part. The first part and the second part are substantially parallel to each other. The third part extends in a direction that intersects both of the first part and the second part. The semiconductor element is covered with the base. The first conductor is coupled to the semiconductor element, and protrudes to an outside of the base from the first part of the outer edge. The second conductor is coupled to the semiconductor element, and protrudes to the outside of the base from the third part of the outer edge.

公开(公告)号：US11073578B2

公开(公告)日：2021-07-27

申请号：US16745786

申请日：2020-01-17

Applicant: TDK Corporation

Inventor： Naoki Ohta ,  Kazuya Watanabe

IPC: G01R33/24 ,  G01R33/038

Abstract: A magnetic sensor includes a base material, a plurality of magnets provided at predetermined spacing on the base material, and a plurality of magnetic detection parts respectively provided close to the plurality of magnets. Each of the plurality of magnetic detection parts outputs a signal in accordance with change in the magnetic field accompanying deformation of the base material.

公开(公告)号：US10895473B2

公开(公告)日：2021-01-19

申请号：US16049981

申请日：2018-07-31

Applicant: TDK Corporation

Inventor： Naoki Ohta ,  Takayasu Kanaya

IPC: G01D5/16

Abstract: The magnetoresistive effect element is provided with a plurality of magnetoresistive effect laminated bodies, a plurality of lower lead electrodes and upper lead electrodes that electrically connect the plurality of magnetoresistive effect laminated bodies in series, and a film that electrically connects the plurality of lower lead electrodes to each other so that none of the plurality of lower lead electrodes is electrically isolated.

公开(公告)号：US10418546B2

公开(公告)日：2019-09-17

申请号：US15835628

申请日：2017-12-08

Applicant: TDK Corporation

Inventor： Tetsuya Hiraki ,  Naoki Ohta ,  Hiraku Hirabayashi ,  Yoshiaki Tanaka

IPC: H01L43/02 ,  H01L27/22

Abstract: A magnetic sensor is provided which can improve density of magnetoresistance effect elements without narrowing the wiring pitch. A plurality of element array layers 10 are stacked one on another, each of the element array layers including a plurality of magnetoresistance effect elements 1 arranged in parallel in an in-plane direction, and magnetoresistance effect elements 1 in the plurality of element array layers 10 are connected in series to each other.

公开(公告)号：US10416000B2

公开(公告)日：2019-09-17

申请号：US15652640

申请日：2017-07-18

Applicant: TDK Corporation

Inventor： Naoki Ohta

IPC: G01R33/09 ,  G01D5/165 ,  G01D5/245

Abstract: A magnetoresistive element is provided with a plurality of magnetoresistive laminated bodies arranged in an array and a plurality of lead electrodes that electrically connect the plurality of magnetoresistive laminated bodies in series. A first lead electrode electrically connected to a first surface in the lamination direction of a first magnetoresistive laminated body among the plurality of magnetoresistive laminated bodies and a second lead electrode electrically connected to a first surface in the lamination direction of a second magnetoresistive laminated body adjacent in the series direction are electrically connected without a magnetoresistive laminated body being interposed in between.

公开(公告)号：US20250123340A1

公开(公告)日：2025-04-17

申请号：US19001724

申请日：2024-12-26

Applicant: TDK Corporation

Inventor： Tetsuya HIRAKI ,  Kenzo Makino ,  Naoki Ohta

IPC: G01R33/09

Abstract: A magnetic sensor includes a first path and a second path, a plurality of structures, and a plurality of first electrodes and a plurality of second electrodes. The first path includes at least one first array. The second path includes at least one second array. The at least one first array and the at least one second array are disposed so that they are arranged in a first direction. The at least one first array and the at least one second array each include an odd number of structures disposed so that they are arranged in a second direction.