公开(公告)号：US20190271822A1

公开(公告)日：2019-09-05

申请号：US16334046

申请日：2017-09-08

Applicant: FUJIKURA LTD.

Inventor： Soichiro Kaneko ,  Tomoaki Kaji ,  Mizuki Isaji ,  Kouji Tomikawa ,  Ken Osato

IPC: G02B6/44

Abstract: An optical fiber unit includes: a plurality of optical fibers; and at least two binding materials that bind the plurality of optical fibers. The two binding materials are wound around the plurality of optical fibers in an SZ shape and adhered to each other at reversed portions of the SZ shape to form an adhesive part. The adhesive part extends along a longitudinal direction where the optical fiber unit extends, and 0.15≤L/(P/2)≤0.8 is satisfied where L is a length of the adhesive part in the longitudinal direction and P is a binding pitch of the two binding materials in the longitudinal direction.

公开(公告)号：US10078194B2

公开(公告)日：2018-09-18

申请号：US15033969

申请日：2015-10-27

Applicant: FUJIKURA LTD.

Inventor： Yoshie Sajima ,  Mizuki Isaji ,  Ken Osato ,  Masayoshi Yamanaka

IPC: G02B6/44 ,  B29D11/00 ,  G01M11/08

CPC classification number: G02B6/448 ,  B29D11/00721 ,  B29D11/00951 ,  G01M11/088

Abstract: [Objective] To detect abnormalities in optical fibers by using a phenomenon specific to optical fiber tapes including plural optical fibers arranged parallel to each other and connected together intermittently. [Solution] This optical fiber tape manufacturing method involves: a step of forming connecting parts that connect together adjacent optical fibers among a plurality of optical fibers arranged parallel to each other while applying tension to the optical fibers, and thus forming an optical fiber tape in which the connecting parts are intermittently disposed; a step of reducing the tension applied to the optical fiber tape; and a step of measuring a thickness of the optical fiber tape with reduced tension from a direction parallel to a tape plane on a path of the optical fiber tape.

公开(公告)号：US09739965B2

公开(公告)日：2017-08-22

申请号：US14471944

申请日：2014-08-28

Applicant: FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Mizuki Isaji ,  Yoshie Sajima ,  Ken Osato ,  Naoki Okada ,  Takashi Matsuzawa ,  Yukiko Take ,  Yusuke Yamada ,  Shinya Hamaguchi ,  Daisuke Kakuta ,  Hisaaki Nakane

IPC: G02B6/44

CPC classification number: G02B6/4403 ,  G02B6/4495

Abstract: Provided is an optical fiber ribbon capable of concurrently ensuring mid-span access performance and cable production performance. The optical fiber ribbon 1 includes three or more optical fibers 2 arranged in parallel and connecting portions 3 connecting the adjacent optical fibers 2, the connecting portions 3 being formed intermittently in each of a ribbon longitudinal direction X and a ribbon width direction Y. The optical fiber ribbon 1 including the connecting portions 3 having split strength which is set in the range from 1.50 gf to 21.0 gf, contributes to exhibiting both the mid-span access performance and the cable production performance.

公开(公告)号：US09340039B2

公开(公告)日：2016-05-17

申请号：US14760390

申请日：2013-12-24

Applicant: FUJIKURA LTD.

Inventor： Shota Yagi ,  Mizuki Isaji ,  Ken Osato

IPC: B41J2/175 ,  B41J3/407 ,  B41F17/10 ,  G02B6/44

CPC classification number: B41J3/4073 ,  B41F17/08 ,  B41F17/10 ,  B41J2/175 ,  G02B6/448 ,  G02B6/4482

Abstract: A printer for printing on an optical fiber includes an ink tray storing an ink; a drawing roll configured to draw the ink from the ink tray; a printing roll, having a print pattern which is capable of filling the ink transferred from the drawing roll, configured to transfer the ink filled in the print pattern to a surface of the running optical fiber, the print pattern being a mesh pattern having a mesh size in a range of 75-mesh to 150-mesh; and a doctor blade configured to press the ink into the print pattern and to scrape the excess ink deposited on a surface of the printing roll.

Abstract translation: 用于在光纤上打印的打印机包括存储墨水的墨盘; 绘制辊，其构造成从所述墨盘中抽出墨; 印刷辊，具有能够填充从拉伸辊传送的油墨的印刷图案，其被配置为将填充在印刷图案中的墨水转印到运行中的光纤的表面，印刷图案是具有网状物的网格图案 尺寸在75目到150目的范围内; 以及刮刀，其构造成将墨压入印刷图案中并刮擦沉积在印刷辊表面上的多余的油墨。

公开(公告)号：US08923681B2

公开(公告)日：2014-12-30

申请号：US13688842

申请日：2012-11-29

Applicant: Fujikura Ltd.

Inventor： Akira Namazue ,  Akira Murata ,  Mizuki Isaji

IPC: G02B6/00 ,  B05D5/06 ,  G02B6/02 ,  C03C25/24 ,  C08F2/50 ,  C08F283/10 ,  C03C25/10 ,  C08G18/67 ,  G02B6/10

CPC classification number: G02B6/10 ,  C03C25/1065 ,  G02B6/02395

Abstract: An optical fiber core having a primary layer and a secondary layer, which are laminated on a bare optical fiber. The primary layer is formed by curing an ultraviolet-curable resin composition containing a first silane coupling agent, which can be incorporated into a resin skeleton, and a second silane coupling agent, which cannot be incorporated into a resin skeleton. The first silane coupling agent contains a compound having a methoxy group, and the second silane coupling agent contains a compound having an ethoxy group.

Abstract translation: 具有层叠在裸光纤上的主层和次层的光纤纤芯。 主层通过固化含有可以引入到树脂骨架中的第一硅烷偶联剂和不能结合到树脂骨架中的第二硅烷偶联剂的紫外线固化树脂组合物形成。 第一硅烷偶联剂含有具有甲氧基的化合物，第二硅烷偶联剂含有具有乙氧基的化合物。