WEARABLE SENSOR AND WEARABLE SENSOR SYSTEM
    1.
    发明公开

    公开(公告)号:US20230363710A1

    公开(公告)日:2023-11-16

    申请号:US18313541

    申请日:2023-05-08

    Applicant: Hitachi, Ltd.

    CPC classification number: A61B5/6806

    Abstract: A wearable sensor that is worn on a human body includes a layer-shaped body that has a shape of surrounding the body between a wrist and a fingertip of a hand of the human body and forms at least two layers that are at least partially overlapped with each other, and at least one sensor that is provided on at least one of the at least two layers.

    SENSING DATA CORRECTION SYSTEM AND SENSING DATA CORRECTION METHOD

    公开(公告)号:US20240118151A1

    公开(公告)日:2024-04-11

    申请号:US18376121

    申请日:2023-10-03

    Applicant: Hitachi, Ltd.

    CPC classification number: G01L5/0028 G01L1/20

    Abstract: A sensing data correction system corrects sensing data acquired from a glove-type wearable sensor in which a film-like pressure sensor is incorporated into a fingertip, and includes a data correction unit for correcting the sensing data. Three coordinate axis directions in a three-dimensional orthogonal coordinate system are assumed to be a vertical direction, a longitudinal direction of the pressure sensor, and a width direction of the pressure sensor, and the pressure sensor is obtained by laminating one flexible printed circuit, one sheet-like pressure sensitive element, and one protective film in the vertical direction. An upper surface of the flexible printed circuit and a lower surface of the pressure sensitive element are bonded and fixed to each other, and an upper surface of the pressure sensitive element and a lower surface of the protective film are bonded and fixed to each other. The data correction unit executes sensing data correction processing.

    SENSOR DATA CORRECTION SYSTEM
    5.
    发明申请

    公开(公告)号:US20210000425A1

    公开(公告)日:2021-01-07

    申请号:US16808892

    申请日:2020-03-04

    Applicant: Hitachi, Ltd.

    Abstract: A sensor data correction system, includes: a standard motion mechanism unit for performing a standard motion of a wearable sensor; a determination unit calculating a relationship between first sensor data that is sensed by a first wearable sensor provided with the standard motion mechanism unit and second sensor data that is sensed by a second wearable sensor provided with the standard motion mechanism unit; and a correction unit correcting the first sensor data or the second sensor data, on the basis of the relationship that is calculated by the determination unit.

    4h-SiC SEMICONDUCTOR ELEMENT AND SEMICONDUCTOR DEVICE
    6.
    发明申请
    4h-SiC SEMICONDUCTOR ELEMENT AND SEMICONDUCTOR DEVICE 有权
    4h-SiC半导体元件和半导体器件

    公开(公告)号:US20130146897A1

    公开(公告)日:2013-06-13

    申请号:US13684314

    申请日:2012-11-23

    Applicant: Hitachi, Ltd.

    Abstract: A trench groove is formed and a silicon oxide film is buried in the periphery of a channel region of (0001) surface 4h-SiC semiconductor element. The oxide film in the trench groove is defined in such a planar layout that a tensile strain is applied along the direction of the c-axis and a compressive strain is applied along two or more of axes on a plane perpendicular to the c-axis. For example, trench grooves buried with an oxide film may be configured to such a layout that they are in a trigonal shape surrounding the channel, or are arranged symmetrically with respect to the channel as a center when arranged discretely.

    Abstract translation: 形成沟槽,在(0001)面4h-SiC半导体元件的沟道区的周围埋置氧化硅膜。 沟槽中的氧化膜以这样的平面布局限定,使得沿着c轴的方向施加拉伸应变,并且沿着与c轴垂直的平面上的两个或更多个轴施加压缩应变。 例如,埋置有氧化物膜的沟槽沟可以被配置为使得它们处于围绕通道的三角形状,或者当离散布置时相对于通道对称地布置为中心。

    PRESSURE SENSOR AND WEARABLE SENSOR
    8.
    发明公开

    公开(公告)号:US20240118156A1

    公开(公告)日:2024-04-11

    申请号:US18376123

    申请日:2023-10-03

    Applicant: Hitachi, Ltd.

    CPC classification number: G01L5/226 G01L5/101

    Abstract: A technique that can emit a sensor signal that accurately reflects only the pressure to be truly detected in a glove-type wearable sensor in which a film-like pressure sensor is incorporated into a fingertip of a thin work glove is disclosed. In a film-like pressure sensor incorporated into a fingertip of a glove-type wearable sensor, three coordinate axis directions in a three-dimensional orthogonal coordinate system are assumed to be a vertical direction, a longitudinal direction of the pressure sensor, and a width direction of the pressure sensor, at least one or more flexible printed circuits and one sheet-like pressure sensitive element are laminated in the vertical direction, and only the pressure applied to the fingertip of a wearer after wearing the wearable sensor is detected.

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