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    SENSOR DATA CORRECTION SYSTEM
    3.
    发明申请
    SENSOR DATA CORRECTION SYSTEM 有权

    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.

    Inventor： Yoshihiro WAKISAKA ,  Nobuyuki SUGII ,  Noriyuki HAGA ,  Tetsuya ISHIMARU ,  Hiroyuki YOSHIMOTO

    IPC: A61B5/00 ,  G01L5/00 ,  G01P13/00 ,  A61B5/11

    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.

    WATER LEAK SENSING SYSTEM AND METHOD
    4.
    发明申请
    WATER LEAK SENSING SYSTEM AND METHOD 审中-公开

    公开(公告)号：US20200103306A1

    公开(公告)日：2020-04-02

    申请号：US16556746

    申请日：2019-08-30

    Applicant: HITACHI, LTD.

    Inventor： Toshiyuki MINE ,  Yuudai KAMADA ,  Tetsuya ISHIMARU ,  Kazuo ONO

    IPC: G01M3/24 ,  G01M3/00 ,  G01M3/18

    Abstract: A water leak sensing system includes: a plurality of sensor terminals including a sensor installed in a pipeline of a water supply network; and a computer that senses a water leak from the pipeline based on detection signal data of the plurality of sensors of the plurality of sensor terminals, and outputs a result. The pipeline is either a first pipeline not covered by a pipe covering member (PE sleeve) or a second pipeline covered by the pipe covering member. The sensor can detect a signal at a first distance from a water leak point when the water leak occurs in the first pipeline, and detect a signal at a second distance, longer than the first distance, from the water leak point when the water leak occurs in the second pipeline.

    WORK CONTENT DETECTION DETERMINATION DEVICE, WORK CONTENT DETECTION DETERMINATION SYSTEM, AND WEARABLE SENSOR EMBEDDED GLOVE
    5.
    发明申请
    WORK CONTENT DETECTION DETERMINATION DEVICE, WORK CONTENT DETECTION DETERMINATION SYSTEM, AND WEARABLE SENSOR EMBEDDED GLOVE 有权

    公开(公告)号：US20220207978A1

    公开(公告)日：2022-06-30

    申请号：US17435894

    申请日：2020-02-13

    Applicant: Hitachi, Ltd.

    Inventor： Tetsuya ISHIMARU ,  Hiroyuki YOSHIMOTO ,  Yoshihiro WAKISAKA ,  Nobuyuki SUGII

    IPC: G08B21/02 ,  H04R1/08 ,  G01L1/20 ,  G01P13/00 ,  G01P15/00

    Abstract: A work detection determination system performs detection determination on a work with high accuracy.
    The work detection determination system includes a glove that is worn on a hand of a worker and includes a microphone detecting a work sound of a hand operation in which the hand works on a work target through a contact of the hand with the work target, a pressure sensor detecting a pressure of a work of the hand operation, a motion sensor detecting a motion of the hand operation, and a transmitting unit transmitting a sound signal of the microphone, a pressure signal of the pressure sensor, and a motion signal of the motion sensor; a receiving unit that receives the sound signal, the pressure signal, and the motion signal transmitted from the transmitting unit; a work determination unit that performs detection determination of a work content of the worker by using the sound signal, the pressure signal, and the motion signal; and a notification unit that notifies a determination result of the work determination unit.

    Diode and Power Conversion System
    6.
    发明申请
    Diode and Power Conversion System 审中-公开
    二极管和电源转换系统

    公开(公告)号：US20140070379A1

    公开(公告)日：2014-03-13

    申请号：US13973802

    申请日：2013-08-22

    Applicant: Hitachi, Ltd.

    Inventor： Tetsuya ISHIMARU ,  Mutsuhiro MORI

    IPC: H01L29/861

    CPC classification number: H01L29/8611 ,  H01L29/36 ,  H01L29/66128 ,  H01L29/66136 ,  H01L29/66143 ,  H01L29/872

    Abstract: A diode includes: a first semiconductor layer of a first conductive type; a second semiconductor layer of a second conductive type arranged adjoining to the first semiconductor layer; a third semiconductor layer of the first conductive type arranged on a side, opposite to the second semiconductor layer, of the first semiconductor layer, and contains a dopant of the first conductive type at a higher concentration than the first semiconductor layer; a first electrode ohmically connected to the second semiconductor layer; a second electrode ohmically connected to the third semiconductor layer; and a fourth semiconductor layer arranged at a position adjoining to the third semiconductor layer between the first and third semiconductor layers, contains a dopant of a type being the same as a type of the dopant of the first conductive type contained in the third semiconductor layer, and has a carrier lifetime shorter than the third semiconductor layer.

    Abstract translation: 二极管包括：第一导电类型的第一半导体层; 与第一半导体层相邻布置的第二导电类型的第二半导体层; 第一导电类型的第三半导体层布置在第一半导体层的与第二半导体层相对的一侧上，并且包含比第一半导体层更高的浓度的第一导电类型的掺杂剂; 欧姆连接到第二半导体层的第一电极; 欧姆连接到第三半导体层的第二电极; 以及布置在与所述第三半导体层之间的所述第三半导体层相邻的位置的位置处的第四半导体层，包含与所述第三半导体层中包含的所述第一导电类型的掺杂剂的类型相同的掺杂剂， 并且具有比第三半导体层短的载流子寿命。

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