公开(公告)号：US11982525B2

公开(公告)日：2024-05-14

申请号：US17295425

申请日：2019-07-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiro Onaka ,  Kiyotaka Yamada ,  Noritaka Ichinomiya ,  Shigehiro Yoshiuchi

IPC: G01B7/30 ,  G01R33/09

CPC classification number: G01B7/30 ,  G01R33/091 ,  G01R33/093 ,  G01R33/096 ,  G01R33/098

Abstract: A magnetic sensor unit includes a magnet, a magnetic sensor facing a lower surface of the magnet, a magnetic shield surrounding the magnetic sensor in a lateral direction crossing up and down directions of the magnetic sensor, and a magnetic yoke covering an upper surface and a side surface of the magnet. The magnet includes a first magnetized region magnetized along the up and down direction, and a second magnetized region magnetized in a direction opposite to a direction of magnetization of the first magnetized region. The first and second magnetized regions have first and second magnetic poles provided on the lower surface of the magnet. A distance LA between a center of the first magnetic pole and a center of the second magnetic pole, a distance LB between the magnetic shield and the center of the first magnetic pole, a distance LC between the magnetic shield and the center of the second magnetic pole satisfy a relation of LA

公开(公告)号：US10759276B2

公开(公告)日：2020-09-01

申请号：US16093741

申请日：2017-06-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiro Onaka ,  Shigehiro Yoshiuchi ,  Noritaka Ichinomiya ,  Kiyotaka Yamada

IPC: B60K20/02 ,  G01B7/30 ,  G01R33/09 ,  G01R33/02 ,  G01D5/14 ,  H01L43/08 ,  H01L27/22 ,  G01D5/245 ,  H01L43/06

Abstract: A magnetic sensor includes a magneto-resistive element, a Hall element, and a detection circuit that receives a signal from the magneto-resistive element and a signal from the Hall element input thereto. The detection circuit includes an output terminal and an interrupt generation unit. The output terminal outputs, to the outside as an output signal, a signal obtained by performing to the signal input from the magneto-resistive element, at least one processing selected from amplification, analog-to-digital conversion, offset correction, and temperature-characteristics correction. The interrupt generation unit outputs an interrupt signal when the signal input from the Hall element is larger than a predetermined threshold. The magnetic sensor is high accurate and highly reliable.

公开(公告)号：US10359478B2

公开(公告)日：2019-07-23

申请号：US15554427

申请日：2016-04-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiro Onaka ,  Noritaka Ichinomiya ,  Shigehiro Yoshiuchi ,  Kiyotaka Yamada

IPC: G01R33/00 ,  G01R33/07 ,  G01R33/09 ,  G01D5/14

Abstract: A magnetic sensor includes a first magnetoresistive element that detects a magnetic field along a first detection axis, a second magnetoresistive element that detects a magnetic field along a second detection axis inclining at an angle of 45 degrees with respect to the first detection axis, a first Hall element that detects a magnetic field along a third detection axis, and a second Hall element that detects a magnetic field along a fourth detection axis perpendicular to the third detection axis. This magnetic sensor has both characteristics of the Hall elements and characteristics of the magnetoresistive elements, and has high accuracy and a small size.

公开(公告)号：US20170176186A1

公开(公告)日：2017-06-22

申请号：US15454220

申请日：2017-03-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shigehiro Yoshiuchi ,  Satoshi Ohuchi ,  Tsuyoshi Fujii ,  Kensaku Yamamoto ,  Hideo Ohkoshi

IPC: G01C19/5769 ,  B81B7/00

CPC classification number: G01C19/5769 ,  B81B7/0048 ,  B81B2201/0242 ,  B81B2201/025 ,  B81B2203/0118 ,  B81B2203/0315 ,  B81B2207/07 ,  B81C1/0023 ,  B81C1/00238 ,  G01P15/0802 ,  H01L24/32 ,  H01L41/1132 ,  H01L2224/32145 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/73265 ,  H01L2225/06506 ,  H01L2924/01014 ,  H01L2924/01079 ,  H01L2924/14 ,  H01L2924/00014

Abstract: An inertial force sensor that can suppress fluctuation of detection sensitivity even if an external stress is applied to the inertial force sensor. Angular velocity sensor (1), that is, an inertial force sensor includes ceramic substrate (6), lower lid (4) adhering to ceramic substrate (6) with adhesives (11a and 11b) (first adhesives), and sensor element (2) adhering to lower lid (4) with adhesives (10a and 10b) (second adhesives). The elastic moduli of adhesives (11a and 11b) are smaller than those of adhesives (10a and 10b).

公开(公告)号：US20150192602A1

公开(公告)日：2015-07-09

申请号：US14660353

申请日：2015-03-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shigehiro Yoshiuchi ,  Satoshi Ohuchi ,  Tsuyoshi Fujii ,  Kensaku Yamamoto ,  Hideo Ohkoshi

IPC: G01P15/08

CPC classification number: G01C19/5769 ,  B81B7/0048 ,  B81B2201/0242 ,  B81B2201/025 ,  B81B2203/0118 ,  B81B2203/0315 ,  B81B2207/07 ,  B81C1/0023 ,  B81C1/00238 ,  G01P15/0802 ,  H01L24/32 ,  H01L41/1132 ,  H01L2224/32145 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/73265 ,  H01L2225/06506 ,  H01L2924/01014 ,  H01L2924/01079 ,  H01L2924/14 ,  H01L2924/00014

Abstract: An inertial force sensor that can suppress fluctuation of detection sensitivity even if an external stress is applied to the inertial force sensor. Angular velocity sensor (1), that is, an inertial force sensor includes ceramic substrate (6), lower lid (4) adhering to ceramic substrate (6) with adhesives (11a and 11b) (first adhesives), and sensor element (2) adhering to lower lid (4) with adhesives (10a and 10b) (second adhesives). The elastic moduli of adhesives (11a and 11b) are smaller than those of adhesives (10a and 10b).

Abstract translation: 即使向惯性力传感器施加外部应力也能够抑制检测灵敏度的波动的惯性力传感器。 角速度传感器（1）即惯性力传感器包括陶瓷基板（6），粘合剂（11a和11b）（第一粘合剂）和传感器元件（2）附着在陶瓷基板（6）上的下盖 ）用粘合剂（10a和10b）（第二粘合剂）粘附到下盖（4）上。 粘合剂（11a和11b）的弹性模量小于粘合剂（10a和10b）的弹性模量。