Invention Grant
- Patent Title: Optical fiber cable
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Application No.: US16962053Application Date: 2019-01-17
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Publication No.: US10914906B2Publication Date: 2021-02-09
- Inventor: Fumiaki Sato , Kenta Tsuchiya , Kuushin Ryan
- Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Applicant Address: JP Osaka
- Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Current Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Current Assignee Address: JP Osaka
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: JP2018-006300 20180118
- International Application: PCT/JP2019/001173 WO 20190117
- International Announcement: WO2019/142841 WO 20190725
- Main IPC: G02B6/44
- IPC: G02B6/44

Abstract:
An optical fiber cable having a slot core which includes a plurality of ribs formed along a cable longitudinal direction and in which slot grooves for housing optical fibers are formed between the ribs. The optical fiber cable includes: subunits each of which is formed by bundling a plurality of intermittent-connection-type optical fiber ribbons in which a connection part where adjacent optical fibers are connected to each other and a non-connection part where adjacent optical fibers are not connected to each other are intermittently provided in the longitudinal direction among some or all of optical fibers; and a thin-skin-shaped tube having Young's modulus lower than Young's modulus of a material forming the slot core. The subunits are housed in the slot grooves, and among the subunits in the slot grooves, at least a subunit located at an outer peripheral part of the slot grooves is covered with the tube.
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