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    OPTICAL CABLE AND SHEATH REMOVING METHOD
    103.
    发明申请
    OPTICAL CABLE AND SHEATH REMOVING METHOD 审中-公开

    公开(公告)号：US20190310437A1

    公开(公告)日：2019-10-10

    申请号：US16465628

    申请日：2017-11-15

    Applicant: FUJIKURA LTD.

    Inventor： Shinnosuke Sato ,  Mizuki Isaji ,  Kouji Tomikawa ,  Ken Osato

    IPC: G02B6/44

    Abstract: An optical cable includes: an optical fiber unit where a plurality of optical fibers are wrapped with a wrapping tape; at least three tensile strength members disposed in parallel with and on an outer side of the optical fiber unit at intervals in a circumferential direction; and a sheath that coats the optical fiber unit and the tensile strength members and that is disposed between the optical fiber unit and the tensile strength members. An inner wall surface of the sheath formed between the optical fiber unit and the tensile strength members protrudes toward a cable center in comparison with an inner wall surface of the sheath where none of the tensile strength members are disposed. A portion of the wrapping tape disposed on the inner wall surface that protrudes toward the cable center is depressed toward the cable center.

    Method of manufacturing an optical fiber cable
    104.
    发明授权
    Method of manufacturing an optical fiber cable 有权

    公开(公告)号：US10345545B2

    公开(公告)日：2019-07-09

    申请号：US15823798

    申请日：2017-11-28

    Applicant: FUJIKURA LTD.

    Inventor： Tomoaki Kaji ,  Masatoshi Ohno ,  Daiki Takeda ,  Ken Osato ,  Masayoshi Yamanaka ,  Naoki Okada

    IPC: G02B6/44

    Abstract: An optical fiber cable is provided. The cable includes: an optical fiber core having a central axis; a presser winding covering the optical fiber core; a sheath covering the presser winding; two tension members in the sheath and facing each other with the central axis therebetween; and two rip cords facing each other with the central axis therebetween and being in direct contact with the sheath and the presser winding. The optical fiber core includes a plurality of optical fiber tapes arranged around the central axis and having mutually different stripe ring marks applied thereon. Each optical fiber tapes includes a plurality of optical fibers intermittently adhered to each other.

    METHOD AND DEVICE FOR MANUFACTURING OPTICAL FIBER RIBBON
    106.
    发明申请
    METHOD AND DEVICE FOR MANUFACTURING OPTICAL FIBER RIBBON 审中-公开

    公开(公告)号：US20190022962A1

    公开(公告)日：2019-01-24

    申请号：US16077150

    申请日：2016-12-08

    Applicant: FUJIKURA LTD.

    Inventor： Shizuka Moriya ,  Mizuki Isaji ,  Ken Osato

    IPC: B29D11/00 ,  G02B6/44

    Abstract: A method for manufacturing an optical fiber ribbon where adjacent optical fibers are intermittently connected in a length direction includes: feeding the optical fibers along the length direction; and intermittently applying a resin in the length direction by: rotating, between adjacent ones of the optical fibers, a rotating member having a recess, and blocking the resin with a peripheral edge part of the rotating member where the recess is not formed. A moving speed, in the length direction, of the peripheral edge part at a position where the peripheral edge part blocks the resin between the optical fibers is slower than a feeding speed of the optical fibers.

    Optical fiber cable
    107.
    发明授权
    Optical fiber cable 有权

    公开(公告)号：US10139583B2

    公开(公告)日：2018-11-27

    申请号：US15567793

    申请日：2016-09-02

    Applicant: FUJIKURA LTD.

    Inventor： Masatoshi Ohno ,  Daiki Takeda ,  Ken Osato

    IPC: G02B6/44

    Abstract: An optical fiber cable includes: a cable main body including a core that includes optical fibers, at least a pair of tension members that face each other with the core interposed therebetween, and an inner sheath that covers the core and the tension members; a cylindrical outer sheath that accommodates the cable main body; a reinforcing sheet provided between the cable main body and the outer sheath; and a rip cord provided between the reinforcing sheet and the cable main body. The reinforcing sheet surrounds an entire circumference of the cable main body, the reinforcing sheet includes an overlapping portion in which portions of the reinforcing sheet overlap each other in a portion in a circumferential direction of the cable main body, and the reinforcing sheet is formed of a metal.

    Optical fiber cable and method of manufacturing same
    109.
    发明授权
    Optical fiber cable and method of manufacturing same 有权

    公开(公告)号：US09869838B2

    公开(公告)日：2018-01-16

    申请号：US14951750

    申请日：2015-11-25

    Applicant: FUJIKURA, LTD.

    Inventor： Tomoaki Kaji ,  Masatoshi Ohno ,  Daiki Takeda ,  Ken Osato ,  Masayoshi Yamanaka ,  Naoki Okada

    IPC: G02B6/44

    CPC classification number: G02B6/4433 ,  G02B6/4405 ,  G02B6/4413 ,  G02B6/4495

    Abstract: An optical fiber cable is provided. The cable includes: an optical fiber core having a central axis; a presser winding covering the optical fiber core; a sheath covering the presser winding; two tension members in the sheath and facing each other with the central axis therebetween; and two rip cords facing each other with the central axis therebetween and being in direct contact with the sheath and the presser winding. The optical fiber core includes a plurality of optical fiber tapes arranged around the central axis and having mutually different stripe ring marks applied thereon. Each optical fiber tapes includes a plurality of optical fibers intermittently adhered to each other.

    Manufacturing method of optical fiber ribbon, manufacturing device for optical fiber ribbon implementing said manufacturing method, and optical fiber ribbon manufactured with said manufacturing method
    110.
    发明授权
    Manufacturing method of optical fiber ribbon, manufacturing device for optical fiber ribbon implementing said manufacturing method, and optical fiber ribbon manufactured with said manufacturing method 有权
    光纤带的制造方法，实现所述制造方法的光纤带的制造装置以及用该制造方法制造的光纤带

    公开(公告)号：US09389386B2

    公开(公告)日：2016-07-12

    申请号：US13768604

    申请日：2013-02-15

    Applicant: FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Takashi Matsuzawa ,  Yukiko Take ,  Ken Osato ,  Naoki Okada ,  Yusuke Yamada

    IPC: G02B6/44

    CPC classification number: G02B6/448 ,  G02B6/4403 ,  G02B6/4404 ,  G02B6/4405

    Abstract: A manufacturing method for an optical fiber ribbon, in which: a plurality of optical fibers are arranged in parallel and the neighboring optical fibers are partially coupled with each other at given intervals in a longitudinal direction to form a subunit; and the optical fibers positioned at side edges of the neighboring subunits are partially coupled with each other at a given intervals in the longitudinal direction, includes: sending out the optical fibers in a parallel manner with intervals provided therebetween, applying an uncured resin to the optical fibers, continuously changing positions at which the uncured resin is interrupted by a plurality of interrupt members, and forming coupled portions at which the optical fibers are coupled to each other by irradiating resin curing energy, wherein a moving period or phase of the interrupt members is changed for every arbitrary optical fibers.

    Abstract translation: 一种光纤带的制造方法，其中：多根光纤平行布置，并且相邻的光纤在长度方向上以给定的间隔彼此部分地耦合以形成子单元; 并且位于相邻子单元的侧边缘处的光纤在纵向方向上以给定的间隔彼此部分地耦合，包括：以平行的方式间隔地设置光纤，将未固化的树脂施加到光学 纤维，未固化树脂被多个中断构件中断的连续变化位置，以及形成通过照射树脂固化能使光纤彼此耦合的耦合部分，其中中断构件的移动周期或相位为 随着任意光纤的变化。

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