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    Fusion splicing system, fusion splicer and method of determining rotation angle of optical fiber
    162.
    发明授权
    Fusion splicing system, fusion splicer and method of determining rotation angle of optical fiber 有权

    公开(公告)号：US10921520B2

    公开(公告)日：2021-02-16

    申请号：US16529035

    申请日：2019-08-01

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Jun Nishina ,  Hideaki Hosoi

    IPC: G02B6/25 ,  G02B6/00 ,  G02B6/255 ,  G01N21/64 ,  G06N20/00 ,  B23K26/03 ,  G06N3/08

    Abstract: Brightness profile data having a number of dimensions is extracted based on image data in a radial direction of an optical fiber, the brightness profile data representing features for each rotation angle of the optical fiber. Machine learning uses training data to create a prediction model that based on the brightness profile data determines a rotation angle of each pair of optical fibers is. The pair of optical fibers are rotated to the determined rotation angle and then fusion spliced. The training data indicates a correspondence relationship between the rotation angle of the optical fiber and brightness profile in the radial direction for each rotation angle of the optical fiber. The prediction model can determine a rotation angle of an arbitrary optical fiber based on brightness profile data of the arbitrary optical fiber.

    JOINED CONDUCTOR, CONDUCTOR JOINING DEVICE, METHOD FOR MANUFACTURING JOINED CONDUCTOR, AND CONDUCTOR JOINING METHOD
    164.
    发明申请
    JOINED CONDUCTOR, CONDUCTOR JOINING DEVICE, METHOD FOR MANUFACTURING JOINED CONDUCTOR, AND CONDUCTOR JOINING METHOD 有权

    公开(公告)号：US20210028562A1

    公开(公告)日：2021-01-28

    申请号：US17066672

    申请日：2020-10-09

    Applicant: FURUKAWA ELECTRIC CO., LTD. ,  FURUKAWA AUTOMOTIVE SYSTEMS INC.

    Inventor： Toshihiro NAKAMURA ,  Tomohiro NAKAYAMA

    IPC: H01R4/02 ,  H01R43/02 ,  H01R4/62 ,  H01B7/10 ,  B23K20/10

    Abstract: [Object]
    The present invention provides a joined conductor and a method for manufacturing a joined conductor that can improve electrical conductivity between conductors.
    [Solution]
    In a joined conductor 100 including a joining portion 110 in which a plurality of conductors exposed portions 220 arranged along a longitudinal direction X are fused and joined, the joining portion 110 is configured to have a substantially rectangular shape in an orthogonal cross section orthogonal to the longitudinal direction X, and among a pair of side surfaces in width direction 120 and a pair of side surfaces in up-down direction 130 configured such that a first surface 121 and a second surface 122 that face each other in the orthogonal cross section, and a horn 131 and a horn 132 are paired, on each of the first surface 121 and the second surface 122 of the pair of side surfaces in width direction 120 that are at least one pair, a corrugated portion 140 that has a corrugated shape and in which a ridge 141 protruding outward and a valley 142 recessed inward are alternately continuously provided along the longitudinal direction X is formed.

    ALUMINUM ALLOY MATERIAL, AND CONDUCTIVE MEMBER, BATTERY MEMBER, FASTENING PART, SPRING PART, AND STRUCTURAL PART USING ALUMINUM ALLOY MATERIAL
    166.
    发明申请
    ALUMINUM ALLOY MATERIAL, AND CONDUCTIVE MEMBER, BATTERY MEMBER, FASTENING PART, SPRING PART, AND STRUCTURAL PART USING ALUMINUM ALLOY MATERIAL 有权

    公开(公告)号：US20210010110A1

    公开(公告)日：2021-01-14

    申请号：US16979712

    申请日：2019-03-15

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Hiroshi KANEKO

    IPC: C22C21/08 ,  C22C21/02 ,  C22F1/05

    Abstract: An aluminum alloy material has an alloy composition which includes at least one among 0.2-1.8 mass % of Mg, 0.2-2.0 mass % of Si, and 0.01-1.50 mass % of Fe, with the balance being Al and inevitable impurities, and has a fibrous metal structure in which crystal grains extend in one direction. In a cross section parallel to the one direction, the average value of the dimensions of the crystal grains in a direction perpendicular to the longitudinal direction thereof is 400 nm or less, and the primary surface of the aluminum alloy material has a crystal orientation distribution in which the ratio H (K100/K111) of K100 to K111 is at least 0.17 as determined by the X-ray pole figure method, where K100 is the sum of the diffraction intensities resulting from crystals in which is oriented in the longitudinal direction, and K111 is the sum of the diffraction intensities resulting from crystals in which is oriented in the longitudinal direction.

    Optical fiber laser device
    170.
    发明授权
    Optical fiber laser device 有权

    公开(公告)号：US10862262B2

    公开(公告)日：2020-12-08

    申请号：US16684040

    申请日：2019-11-14

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Koji Kajiwara ,  Takeshi Takagi ,  Kousuke Kashiwagi ,  Kazuaki Hyuga ,  Yoshihiro Emori

    IPC: H01S3/13 ,  H01S3/102 ,  G02B6/26 ,  H01S3/00 ,  G02B6/255 ,  G02B6/02 ,  H01S3/067 ,  H01S3/0941 ,  H01S3/094 ,  H01S3/16

    Abstract: An optical fiber laser device generates laser light by using an optical amplifying fiber as an amplification medium in a laser oscillator and includes: an optical outputting fiber configured to emit laser light to an outside; a return-light-attenuating portion configured to perform an attenuation process to return light propagating through at least the optical outputting fiber in a reverse direction of the laser light; a thermal conversion unit provided at the return-light-attenuating portion and configured to convert the return light into heat; a temperature-monitoring device configured to measure an increase in a temperature, of the return-light-attenuating portion, caused by the heat converted by the thermal conversion unit; and a control unit configured to decrease or stop an output of the laser light when the temperature measured by the temperature-monitoring device becomes a predetermined threshold temperature or higher.

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