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公开(公告)号：US11204263B2
公开(公告)日：2021-12-21
申请号：US16896379
申请日：2020-06-09
Applicant: TDK CORPORATION
Inventor： Tsuyoshi Umehara , Keisuke Uchida , Toshihide Suto , Hiraku Hirabayashi
Abstract: A position detection device includes a first magnetic field generation unit for generating a first magnetic field, a second magnetic field generation unit for generating a second magnetic field, and a magnetic sensor. The position of the second magnetic field generation unit relative to the first magnetic field generation unit is variable. The magnetic sensor detects the direction of a target magnetic field at a detection position in a reference plane. The target magnetic field is a composite magnetic field of first and second magnetic field components which are respective components of the first and second magnetic fields parallel to the reference plane. The magnetic sensor includes a magnetoresistive element including a free layer and a magnetization pinned layer. In the reference plane, two directions orthogonal to the magnetization direction of the magnetization pinned layer are each different from both of directions of the first and second magnetic field components.
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公开(公告)号：US11650272B2
公开(公告)日：2023-05-16
申请号：US17227745
申请日：2021-04-12
Applicant: TDK CORPORATION
Inventor： Yongfu Cai , Toshihide Suto
CPC classification number: G01R33/093 , G01R33/0029 , G01R33/091 , G01R33/098
Abstract: A magnetism detection device according to an embodiment of the disclosure includes a sensor section and a resistive section. The sensor section includes a first magnetism detection element. The first magnetism detection element has a first stacked structure and is configured to detect a magnetic field to be detected. The resistive section includes a first resistive element and is coupled to the sensor section. The first resistive element has the first stacked structure.
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公开(公告)号：US10312286B2
公开(公告)日：2019-06-04
申请号：US14982059
申请日：2015-12-29
Applicant: TDK Corporation
Inventor： Toshihide Suto , Hiraku Hirabayashi
Abstract: A magnetic sensor for detecting a component of an external magnetic field in a specific direction includes a resistor array including a plurality of resistive element sections each having a magnetoresistance element. Each of the plurality of resistive element sections has a different output characteristic curve with respect to the component of the external magnetic field in the specific direction.
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公开(公告)号：US10712178B2
公开(公告)日：2020-07-14
申请号：US16123513
申请日：2018-09-06
Applicant: TDK CORPORATION
Inventor： Keisuke Uchida , Tsuyoshi Umehara , Toshihide Suto , Hiraku Hirabayashi
Abstract: A position detection device includes a first magnetic field generation unit for generating a first magnetic field, a second magnetic field generation unit for generating a second magnetic field, and a magnetic sensor. The position of the second magnetic field generation unit relative to the first magnetic field generation unit is variable. The magnetic sensor detects the direction of a target magnetic field at a detection position in a reference plane. The target magnetic field is a composite magnetic field of first and second magnetic field components which are respective components of the first and second magnetic fields parallel to the reference plane. The magnetic sensor includes a magnetoresistive element including a free layer and a magnetization pinned layer. In the reference plane, two directions orthogonal to the magnetization direction of the magnetization pinned layer are each different from both of directions of the first and second magnetic field components.
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Patent Agency Ranking
公开(公告)号：US11366183B2
公开(公告)日：2022-06-21
申请号：US16217265
申请日：2018-12-12
Applicant: TDK Corporation
Inventor： Toshihide Suto
Abstract: A magnetic sensor according to the invention has a magnetoresistive element having a multi-layer structure and a magnetically sensitive axis, and at least a soft magnetic body that is arranged near the magnetoresistive element. The soft magnetic body has a sloping line at least at a corner thereof, wherein the sloping line is tilted with respect to two sides of the soft magnetic body that extend to the corner, as viewed in a stacking direction of the magnetoresistive element.
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公开(公告)号：US10996291B2
公开(公告)日：2021-05-04
申请号：US16356210
申请日：2019-03-18
Applicant: TDK Corporation
Inventor： Yongfu Cai , Toshihide Suto
Abstract: A magnetism detection device according to an embodiment of the disclosure includes a sensor section and a resistive section. The sensor section includes a first magnetism detection element. The first magnetism detection element has a first stacked structure and is configured to detect a magnetic field to be detected. The resistive section includes a first resistive element and is coupled to the sensor section. The first resistive element has the first stacked structure.
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公开(公告)号：US08896304B2
公开(公告)日：2014-11-25
申请号：US13777666
申请日：2013-02-26
Applicant: TDK Corporation
Inventor： Toshihide Suto
CPC classification number: G01R33/093
Abstract: A magnetic sensor includes first and second MR elements, and an electrode electrically connecting the first and second MR elements to each other. The electrode includes a first portion having a first surface, a second portion having a second surface, and a coupling portion coupling the first and second portions to each other. The first surface is in contact with an end face of the first MR element. The second surface is in contact with an end face of the second MR element. Each of the first and second surfaces has a three-hold or higher rotationally symmetric shape. The diameter of a first inscribed circle inscribed in the outer edge of the first surface and the diameter of the second inscribed circle inscribed in the outer edge of the second surface are greater than the width of the coupling portion.
Abstract translation: 磁传感器包括第一和第二MR元件以及将第一和第二MR元件彼此电连接的电极。 电极包括具有第一表面的第一部分，具有第二表面的第二部分和将第一部分和第二部分彼此连接的联接部分。 第一表面与第一MR元件的端面接触。 第二表面与第二MR元件的端面接触。 第一和第二表面中的每一个具有三个保持或更高的旋转对称形状。 内接在第一表面的外边缘中的第一内接圆的直径和内接在第二表面的外边缘中的第二内接圆的直径大于联接部分的宽度。
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公开(公告)号：US12189002B2
公开(公告)日：2025-01-07
申请号：US17743621
申请日：2022-05-13
Applicant: TDK Corporation
Inventor： Toshihide Suto
Abstract: A magnetic sensor according to the invention has a magnetoresistive element having a multi-layer structure and a magnetically sensitive axis, and at least a soft magnetic body that is arranged near the magnetoresistive element. The soft magnetic body has a sloping line at least at a corner thereof, wherein the sloping line is tilted with respect to two sides of the soft magnetic body that extend to the corner, as viewed in a stacking direction of the magnetoresistive element.
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9.发明申请MAGNETIC SENSOR INCLUDING RESISTOR ARRAY INCLUDING A PLURALITY OF RESISTIVE ELEMENT SECTIONS EACH HAVING MAGNETORESISTANCE ELEMENT 审中-公开磁电传感器包括电阻阵列，其中包括各种具有磁阻元件的电阻元件部分公开(公告)号：US20160204161A1
公开(公告)日：2016-07-14
申请号：US14982059
申请日：2015-12-29
Applicant: TDK Corporation
Inventor： Toshihide Suto , Hiraku Hirabayashi
CPC classification number: H01L27/222 , G01R33/093 , G01R33/098 , H01L43/02 , H01L43/08
Abstract: A magnetic sensor for detecting a component of an external magnetic field in a specific direction includes a resistor array including a plurality of resistive element sections each having a magnetoresistance element. Each of the plurality of resistive element sections has a different output characteristic curve with respect to the component of the external magnetic field in the specific direction.
Abstract translation: 用于检测特定方向的外部磁场的分量的磁传感器包括电阻阵列，其包括多个具有磁阻元件的电阻元件部分。 多个电阻元件部分中的每一个相对于特定方向上的外部磁场的分量具有不同的输出特性曲线。
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