ROBOT ARM
    12.
    发明申请

    公开(公告)号:US20210039269A1

    公开(公告)日:2021-02-11

    申请号:US16803049

    申请日:2020-02-27

    Inventor: Changwoo SON

    Abstract: A robot arm including a rotating body connected to a base, an arm rotating about a central axis of the rotating body, a moving pulley provided at the arm and revolving along a circular track which is concentric with the rotating body, a reference pulley provided at the base and positioned on an inner side with respect to the circular track, a spring embedded in the arm and compressed or stretched in a lengthwise direction of the arm, a string compressing the spring and wound around the moving pulley and the reference pulley, and a plurality of roller bearings arranged to be spaced apart from each other along an outer circumference of the rotating body, rotating about a rotation axis parallel to the central axis of the rotating body, and configured to be in contact with the string is provided.

    VEHICLE-MOUNTED ANTENNA SYSTEM
    14.
    发明申请

    公开(公告)号:US20220069450A1

    公开(公告)日:2022-03-03

    申请号:US17312800

    申请日:2018-12-10

    Abstract: A vehicle-mounted antenna system according to the present invention comprises: a first antenna system in which a plurality of first antenna elements disposed in a structure mounted on a vehicle perform multiple-input and multiple-output (MIMO); and a second antenna system in which a plurality of second antenna elements attached to a side surface of a polyhedron disposed in the structure perform beamforming, wherein the disposed plurality of first antenna elements are formed, in the front and back of the polyhedron, on a substrate erected at a predetermined angle to the structure, and thus, the present invention may provide an antenna array optimized in terms of spacing between antenna elements in a flat-type vehicle antenna provided with an LTE antenna system and a 5G antenna system.

    TOOL COUPLER, TOOL CHANGER, TOOL MOUNTER, AND TOOL CHANGE SYSTEM HAVING THE SAME

    公开(公告)号:US20210078186A1

    公开(公告)日:2021-03-18

    申请号:US16839186

    申请日:2020-04-03

    Inventor: Changwoo SON

    Abstract: A tool system including a housing fastened to a tool, the housing being formed of a non-magnetic material, a magnet module embedded in the housing, a pair of mounting grooves in the housing and located below the magnet module, a changer body provided on a manipulator, the changer body being formed a non-magnetic material, a metal bar mounted on the changer body, a pair of terminals provided at both ends of the metal bar, the pair of terminals being formed of magnetic material, the pair of terminals facing the magnet module, a fixing bar outside the housing, the fixing bar being formed of a magnetic material, and a pair of mounting pins extending vertically from both ends of the fixing bar, the pair of mounting pins being formed of magnetic materials, and the pair of mounting pins are inserted into the pair of mounting grooves is provided.

    ANTENNA SYSTEM LOADED IN VEHICLE
    16.
    发明申请

    公开(公告)号:US20200185819A1

    公开(公告)日:2020-06-11

    申请号:US16423827

    申请日:2019-05-28

    Abstract: An antenna system loaded in a vehicle according to the present invention includes a first antenna system having a plurality of first antenna elements disposed within a structure mounted in the vehicle, to perform Multi Input Multi Output (MIMO), and a second antenna system having a plurality of second antenna elements attached to side surfaces of a polyhedron disposed within the structure, to perform beamforming, wherein the plurality of first antenna elements is provided on substrates, arranged on the structure by predetermined angles, at front and rear sides of the polyhedron, whereby an antenna arrangement structure with an optimized isolation characteristic among antenna elements can be provided in a flat vehicle antenna having an LTE antenna system and a 5G antenna system.

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