公开(公告)号：US20220229236A1

公开(公告)日：2022-07-21

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

Abstract: A reinforcing sleeve is a member for collectively reinforcing spliced portions of a plurality of optical fiber core wires disposed side by side. The reinforcing member includes a heat-shrinkable tube, a heat-meltable member, a tension member, and so on. The heat shrinkable tube is a cylindrical member having an approximately circular cross section. The heat-meltable member, which is a first heat-meltable member, is in a cylindrical shape having an approximately circular or elliptical cross section. The tension member is a rod-shaped member. 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.

公开(公告)号：US20240310575A1

公开(公告)日：2024-09-19

申请号：US18604728

申请日：2024-03-14

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Yusuke MATSUNO ,  Masanori TAKAHASHI ,  Ryuichi SUGIZAKI ,  Akio TANABE ,  Yoshihiro ARASHITANI

IPC: G02B6/02 ,  G02B6/255

CPC classification number: G02B6/021 ,  G02B6/02042 ,  G02B6/2551

Abstract: An optical fiber connection structure includes a first optical fiber and a second optical fiber each including plural cores and a cladding surrounding outer peripheries of the plural cores, the first optical fiber and the second optical fiber being connected to each other at end faces of the first optical fiber and the second optical fiber, arrangements of the plural cores of the first optical fiber and the second optical fiber matching each other at least partly.

公开(公告)号：US20220229237A1

公开(公告)日：2022-07-21

申请号：US17578531

申请日：2022-01-19

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Tomohiro AKIYAMA ,  Akio TANABE

IPC: G02B6/255 ,  G02B6/44 ,  G02B6/02

Abstract: A reinforcing sleeve is a member for collectively reinforcing spliced portions of a plurality of optical fiber core wires disposed side by side. The reinforcing sleeve includes a heat-shrinkable tube, a heat-meltable member, a tension member, and so on. The heat shrinkable tube is a cylindrical member having an approximately circular cross section. The tension member and the heat-meltable member are inserted into the heat-shrinkable tube. The heat-meltable member is disposed on an upper part of the tension member. Also, an optical fiber dispersion portion is formed on a surface of the tension member on a side of the heat-meltable member in a cross section perpendicular to a longitudinal direction of the reinforcing sleeve. The optical fiber dispersion portion includes an inclined portion that is formed so as to separate away from the heat-meltable member as being closer to an end portion of a width direction in a cross section perpendicular to the longitudinal direction of the tension member.

公开(公告)号：US20190102347A1

公开(公告)日：2019-04-04

申请号：US16194004

申请日：2018-11-16

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Akio TANABE ,  Kazunori YAMAMOTO ,  Hirofumi OSHIMA

IPC: G06F16/953 ,  G02B6/255 ,  G06F16/16

Abstract: A fusion condition providing system for an optical fiber fusion splicer includes: a storage device storing a database of fusion conditions; a user-side communication unit transmitting a command for requesting a fusion condition for a pair of optical fibers to be fusion spliced by a user's fusion splicer; and a data management unit. The data management unit, in accordance with the command received from the user-side communication unit via a network, transmits the requested fusion condition among the plurality of fusion conditions inside the storage device to the user-side communication unit via the network so that the requested fusion condition is available for use in the fusion splicer. If the requested fusion condition was not in the database, the data management unit updates the database by causing the requested fusion condition to be newly created and storing the newly created fusion condition in the database.