OPTICAL FIBER UNIT, OPTICAL FIBER CABLE, AND METHOD FOR MANUFACTURING OPTICAL FIBER UNIT

WIPO Patent Application WO/2018/116420

A1

Two bundle materials 5a, 5b are provided on the outer periphery of a plurality of optical fiber core wires 3. The bundle materials 5a, 5b are twisted back while reversing the winding from front to back and vice versa to thus wind the bundle materials 5a, 5b around the plurality of optical fiber core wires 3. That is, the bundle materials 5a, 5b are not wound spirally around the plurality of optical fiber core wires 3. The bundle materials 5a, 5b are bonded at a bonding portion 7 where both bundle materials intersect. The bonding portion 7 is provided along a center line C of an optical fiber unit 1. The bundle materials 5a, 5b are arranged in ranges A, B which are each approximately 180° and partitioned by the center line C.

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ISHIMURA TOMOHIRO (JP)
HOSHINO YUTAKA (JP)
HAMAGUCHI SHINYA (JP)
NAKAGAWA NAOKI (JP)
ENDO YOHEI (JP)
SHIBATA YUKIHIKO (JP)
AOYAGI YUJI (JP)

PCT/JP2016/088170

June 28, 2018

December 21, 2016

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FURUKAWA ELECTRIC CO LTD (JP)
NIPPON TELEGRAPH & TELEPHONE (JP)

G02B6/04; G02B6/44

WO2016185767A1	2016-11-24
WO2015052951A1	2015-04-16
WO2016189922A1	2016-12-01
WO2015053146A1	2015-04-16

JP2011169939A	2011-09-01
JP2013088547A	2013-05-13
JP2012088454A	2012-05-10

INOUE, Seiichi (JP)

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