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71.发明授权公开(公告)号：US11199676B2
公开(公告)日：2021-12-14
申请号：US16490168
申请日：2018-03-15
Applicant: FUJIKURA LTD.
Inventor： Shinnosuke Sato , Kouji Tomikawa , Ken Osato
Abstract: An optical fiber cable manufacturing method using a manufacturing apparatus including an SZ twisting device, an extrusion molding device, and a pressing portion disposed between the SZ twisting device and the extrusion molding device is provided. The method including: twisting optical fibers or optical fiber units in an SZ manner using the SZ twisting device to form an optical fiber bundle; and covering the optical fiber bundle with a sheath using the extrusion molding device while pressing the optical fiber bundle using the pressing portion.
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公开(公告)号：US20210341695A1
公开(公告)日：2021-11-04
申请号：US17282626
申请日：2019-09-18
Applicant: FUJIKURA LTD.
Inventor： Go Taki , Masayuki Ishioka , Mizuki Isaji , Tomoaki Kaji , Soichiro Kaneko , Koji Tomikawa , Akira Namazue , Ken Osato
IPC: G02B6/44
Abstract: A reticulated tube includes: a plurality of openings that are reticulately formed; peripheral parts that form the openings; and a branch part that is formed in a boundary of three or more openings. The branch part includes three or more peripheral parts extending from the branch part. The reticulated tube is configured to accommodate a plurality of optical fibers inserted through the reticulated tube. The peripheral parts are restricted by the branch part and are bendable.
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公开(公告)号：US20210278616A1
公开(公告)日：2021-09-09
申请号：US16340626
申请日：2017-11-17
Applicant: FUJIKURA LTD.
Inventor： Masatoshi Ohno , Shinnosuke Sato , Mizuki Isaji , Kouji Tomikawa , Akira Namazue , Ken Osato
IPC: G02B6/44
Abstract: An optical fiber cable includes a core that includes an assembled plurality of optical fibers; an inner sheath that accommodates the core therein, a pair of tension members that are embedded in the inner sheath and that are disposed on opposite sides of the core, and an outer sheath that covers the inner sheath. The inner sheath is formed with a dividing portion that divides an inner peripheral surface and an outer peripheral surface of the inner sheath in a circumferential direction. The dividing portion extends along a longitudinal direction in which the optical fiber cable extends.
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公开(公告)号：US10746629B2
公开(公告)日：2020-08-18
申请号：US16324497
申请日：2017-08-07
Applicant: FUJIKURA LTD.
Inventor： Yuki Nemoto , Shengyang Luo , Masanobu Higuchi , Tatsushi Ogasawara , Mizuki Isaji , Tomoaki Kaji , Kouji Tomikawa , Ken Osato
Abstract: An inspection device of an optical fiber unit, including a plurality of binding materials wound in an SZ shape on a plurality of optical fibers, includes: a measurement sensor that measures a width of the optical fiber units in a first direction orthogonal to a longitudinal direction in which the optical fiber unit extends; and a determination circuit that determines a presence or an absence of an abnormality in a binding state, based on a measurement result of the measurement sensor.
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公开(公告)号：US20200218020A1
公开(公告)日：2020-07-09
申请号：US16825336
申请日：2020-03-20
Applicant: FUJIKURA LTD. , NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Akira Namazue , Ken Osato , Naoki Okada , Yusuke Yamada , Daisuke Kakuta , Hisaaki Nakane , Shinya Hamaguchi
Abstract: Provided is an optical fiber ribbon capable of achieving higher density and reduction in diameter and accurately placing optical fibers in V-shape grooves in a fusion machine without failure. The optical fiber ribbon 1 includes three or more of optical fibers 2 arranged in parallel and connecting portions 3 connecting adjacent two optical fibers 2 together, the connecting portions 3 being intermittently provided in each of a ribbon longitudinal direction and a ribbon width direction. The connecting portions 3 are each formed in such a manner as to fill resin into a gap S formed between adjacent two optical fibers 2, and both surfaces of the respective connecting portions 3 are each formed into a recess having a concave shape curved toward a center of the gap S to separate from lines 4,5 each connecting contact points of the optical fibers 2 when being placed on a horizontal surface.
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Patent Agency Ranking
公开(公告)号：US10688740B2
公开(公告)日：2020-06-23
申请号：US16077150
申请日：2016-12-08
Applicant: FUJIKURA LTD.
Inventor： Shizuka Moriya , Mizuki Isaji , Ken Osato
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.
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公开(公告)号：US10670820B2
公开(公告)日：2020-06-02
申请号：US16326097
申请日：2017-09-11
Applicant: FUJIKURA LTD.
Inventor： Tomoaki Kaji , Soichiro Kaneko , Mizuki Isaji , Kouji Tomikawa , Ken Osato
Abstract: An optical fiber unit includes a plurality of optical fibers; and two binding materials that bind the optical fibers. The two binding materials are wound around the optical fibers in an SZ shape, and are adhered to each other at respective reversed portions that form an adhesive part. The adhesive part has a plurality of intersection points of center lines of the two binding materials.
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公开(公告)号：US10527807B2
公开(公告)日：2020-01-07
申请号：US16032791
申请日：2018-07-11
Applicant: AFL Telecommunications LLC , FUJIKURA LTD.
Inventor： Joseph Cignarale , Doug Baker , Yoshio Hashimoto , Ken Osato
Abstract: An optical fiber cable including an optical fiber ribbon in a pipe, wherein the ribbon includes at least two optical fibers arranged side by side, and wherein at least two of the optical fibers are bonded intermittently along a length of the fibers.
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公开(公告)号：US10393983B2
公开(公告)日：2019-08-27
申请号：US15578018
申请日：2016-03-09
Applicant: FUJIKURA LTD.
Inventor： Mizuki Isaji , Ken Osato , Naoki Okada
IPC: G02B6/44
Abstract: An optical fiber ribbon includes a plurality of optical fibers arranged side by side in a width direction. Each of the optical fibers includes a colored section that is colored by an identification color for identifying the optical fiber from the other optical fibers. The respective colored sections of the optical fibers are formed by coloring a portion, in a length direction, of the respective optical fibers according to a common pattern.
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80.发明授权Optical fiber ribbon, optical fiber cable, and wire configuration, each having identification marking 有权光纤带，光纤电缆和电线配置，每个都有识别标记公开(公告)号：US09008478B2
公开(公告)日：2015-04-14
申请号：US13644939
申请日：2012-10-04
Applicant: Fujikura Ltd.
Inventor： Takashi Matsuzawa , Yukiko Take , Mizuki Isaji , Ken Osato , Naoki Okada
CPC classification number: G02B6/4482 , G02B6/4403 , G02B6/4411
Abstract: An optical fiber ribbon includes: a plurality of optical fibers arranged in parallel; and a tape material covering the plurality of optical fibers into a tape, in which the plurality of optical fibers are coated respectively with translucent color layers of different colors, and in at least two of the plurality of optical fibers, markings for identifying the optical fiber ribbon are provided at a same position in a longitudinal direction of the optical fiber ribbon.
Abstract translation: 光纤带包括：平行布置的多根光纤; 以及将所述多根光纤覆盖成带状的带状材料，其中所述多根光纤分别涂覆有不同颜色的半透明色层，并且在所述多根光纤中的至少两根中，用于识别所述光纤的标记 带状物设置在光纤带的纵向方向上的相同位置处。
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