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    OPTICAL FIBER
    32.
    发明公开
    OPTICAL FIBER 审中-公开

    公开(公告)号：US20240192437A1

    公开(公告)日：2024-06-13

    申请号：US18582996

    申请日：2024-02-21

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Yuki SATO

    IPC: G02B6/02 ,  G02B6/028

    CPC classification number: G02B6/02042 ,  G02B6/02004 ,  G02B6/0285

    Abstract: An optical fiber includes a core portion, a side core layer, and a cladding portion, where Δ1>ΔClad>Δ2 and 0>Δ2 are satisfied, Δ1 is 0.35% or more and 0.45% or less, Δ2 is −0.2% or more and less than 0%, 2a is 8 μm or more and 10 μm or less, 2b is 35 μm or more and 45 μm or less, and a refractive index profile of the side core layer includes a bottom portion where a refractive index is lower than that of other regions of the side core layer, and a distance of a position of lowest refractive index in the bottom portion from a center of the core portion is a+(b−a)/1.55 μm or less.

    BIOLOGICAL INFORMATION MEASUREMENT DEVICE
    34.
    发明公开
    BIOLOGICAL INFORMATION MEASUREMENT DEVICE 审中-公开

    公开(公告)号：US20240172969A1

    公开(公告)日：2024-05-30

    申请号：US18546372

    申请日：2022-02-14

    Applicant: ZEON CORPORATION ,  TOHOKU UNIVERSITY ,  FURUKAWA ELECTRIC CO., LTD.

    Inventor： Koji KAWAJIRI ,  Rihito KURODA ,  Yasuyuki FUJIHARA ,  Shota NAKAYAMA ,  Hideaki HASEGAWA ,  Takayori ITO ,  Hiroyuki TAMAOKA

    IPC: A61B5/145 ,  A61B5/1455

    CPC classification number: A61B5/14532 ,  A61B5/1455 ,  A61B2562/0238

    Abstract: A biological information measuring device includes a light source that irradiates light, a sensor having a plurality of pixels arranged in an array in a two-dimensional plane and a saturation charge number of 1,000,000 or more. The sensor receives irradiated light transmitted, reflected, or scattered from the light source in a living body and outputs information according to the light intensity of the received light. A specific location selection unit selects a measurement target location of the measurement target for the biological information and a reference location different from the measurement target location, based on the information obtained by the image sensor. A biological information acquisition unit acquires biological information from the information obtained by the sensor at the measurement target location, using the information obtained by the sensor at the reference location as a reference.

    IRRADIATION PROBE AND IRRADIATION PROBE SYSTEM
    35.
    发明公开
    IRRADIATION PROBE AND IRRADIATION PROBE SYSTEM 审中-公开

    公开(公告)号：US20240167949A1

    公开(公告)日：2024-05-23

    申请号：US18429650

    申请日：2024-02-01

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Masaki IWAMA

    IPC: G01N21/47

    CPC classification number: G01N21/474 ,  G01N2021/4742 ,  G01N2021/4759 ,  G01N2021/4761 ,  G01N2201/0697

    Abstract: An irradiation probe is, for example, an irradiation probe in which a plurality of optical fibers are bundled together, each of the optical fibers having, as at least a partial section in a longitudinal direction, a leakage section that outputs leakage light radially outward. Each of the optical fibers has directivity in which intensity of leakage light in a specific radial direction is higher than intensity of leakage light in another radial direction in a cross section intersecting an axial direction of the leakage section. The optical fibers are disposed apart from a central axis of the irradiation probe in radial directions different from each other, and the optical fibers are bundled together in a posture in which leakage light to the specific radial direction from the leakage section is directed radially outward of the irradiation probe.

    LEAD BLOCK AND ROTARY CONNECTOR DEVICE
    39.
    发明公开
    LEAD BLOCK AND ROTARY CONNECTOR DEVICE 审中-公开

    公开(公告)号：US20240097361A1

    公开(公告)日：2024-03-21

    申请号：US18522238

    申请日：2023-11-29

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

    Inventor： Yuya HASEGAWA ,  Shingo NAMBU

    IPC: H01R9/24 ,  H01R35/02

    CPC classification number: H01R9/24 ,  H01R35/02 ,  H01R2201/26

    Abstract: A lead block includes a lead block body and a plurality of bus bars. The plurality of bus bars include a plurality of connection pins and a plurality of conductor connecting portions. At least one of the plurality of conductor connecting portions includes an exposed surface and a connection projection. The connection projection protrudes from the exposed surface in a perpendicular direction and is configured to be connected to a conductor of an electrical cable. The connection projection is disposed in a first region with respect to the exposed surface in the perpendicular direction. The lead block body includes a cable-facing surface provided facing the electrical cable in a state where the connection projection is connected to the conductor of the electrical cable. The cable-facing surface is offset in the perpendicular direction from the exposed surface and is disposed in the first region with respect to the exposed surface.

    Reinforcing sleeve, reinforcing structure of spliced portion of optical fiber
    40.
    发明授权
    Reinforcing sleeve, reinforcing structure of spliced portion of optical fiber 有权

    公开(公告)号：US11934009B2

    公开(公告)日：2024-03-19

    申请号：US17578529

    申请日：2022-01-19

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Tomohiro Akiyama ,  Ryuji Takaoka ,  Akio Tanabe

    IPC: G02B6/255

    CPC classification number: G02B6/2551 ,  G02B6/2552 ,  G02B6/2558

    Abstract: A reinforcing sleeve for collectively reinforcing spliced portions of a plurality of optical fiber core wires disposed side by side includes a heat-shrinkable tube, a heat-meltable member, a tension member, and so on. The tension member and the heat-meltable member are inserted into the heat-shrinkable member. A thick portion is provided at a substantially center portion of a width direction of the heat-meltable member. Thus, on a cross section perpendicular to a longitudinal direction of the heat-meltable member, an amount of the heat-meltable member at proximity of the center portion of the width direction of the heat-meltable member is greater than an amount of the heat-meltable member at proximity of the end portions of the width direction of the heat-meltable member. This forms a flow of the heat-meltable member from the center portion toward the end portions in the width direction at the time of melting the heat-meltable member.

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