公开(公告)号：US20240231029A9

公开(公告)日：2024-07-11

申请号：US18397026

申请日：2023-12-27

Applicant: Fujikura Ltd.

Inventor： Yoshie Murakoshi ,  Akira Namazue ,  Ken Osato

IPC: G02B6/44

CPC classification number: G02B6/448 ,  G02B6/4403

Abstract: An optical fiber ribbon includes: optical fibers disposed side by side in a predetermined direction; and connecting portions that connect two adjacent ones of the optical fibers. A peripheral resin portion is formed on a periphery of the optical fibers. An arithmetic mean roughness Ra of a surface of the peripheral resin portion is 0.41 μm or lower. A ten-point mean roughness Rz of a surface of the peripheral resin portion is 1.4 μm or lower.

公开(公告)号：US20220317399A1

公开(公告)日：2022-10-06

申请号：US17632681

申请日：2020-05-12

Applicant: FUJIKURA LTD.

Inventor： Yoshie Murakoshi ,  Akira Namazue ,  Ken Osato

IPC: G02B6/44

Abstract: [Problem] When a surface of the optical fiber ribbon is rough, the microbending loss is increased due to the irregularities formed on the surface of the optical fiber ribbon.
[Solution] An intermittently connected optical fiber ribbon of the present disclosure, includes: a plurality of optical fibers arranged in a predetermined direction; and connecting portions that intermittently connect two adjacent ones of the optical fibers. A peripheral cover portion formed of resin configuring the connecting portions is formed on a periphery of the optical fibers. An arithmetic mean roughness Ra of a surface of the peripheral cover portion is 0.41 μm or lower.

公开(公告)号：US12222575B2

公开(公告)日：2025-02-11

申请号：US18397026

申请日：2023-12-27

Applicant: Fujikura Ltd.

Inventor： Yoshie Murakoshi ,  Akira Namazue ,  Ken Osato

IPC: G02B6/44

Abstract: An optical fiber ribbon includes: optical fibers disposed side by side in a predetermined direction; and connecting portions that connect two adjacent ones of the optical fibers. A peripheral resin portion is formed on a periphery of the optical fibers. An arithmetic mean roughness Ra of a surface of the peripheral resin portion is 0.41 μm or lower. A ten-point mean roughness Rz of a surface of the peripheral resin portion is 1.4 μm or lower.

公开(公告)号：US11899266B2

公开(公告)日：2024-02-13

申请号：US17632681

申请日：2020-05-12

Applicant: FUJIKURA LTD.

Inventor： Yoshie Murakoshi ,  Akira Namazue ,  Ken Osato

IPC: G02B6/44

CPC classification number: G02B6/448 ,  G02B6/4403

Abstract: [Problem] When a surface of the optical fiber ribbon is rough, the microbending loss is increased due to the irregularities formed on the surface of the optical fiber ribbon.
[Solution] An intermittently connected optical fiber ribbon of the present disclosure, includes: a plurality of optical fibers arranged in a predetermined direction; and connecting portions that intermittently connect two adjacent ones of the optical fibers. A peripheral cover portion formed of resin configuring the connecting portions is formed on a periphery of the optical fibers. An arithmetic mean roughness Ra of a surface of the peripheral cover portion is 0.41 μm or lower.

公开(公告)号：US20240134140A1

公开(公告)日：2024-04-25

申请号：US18397026

申请日：2023-12-27

Applicant: Fujikura Ltd.

Inventor： Yoshie Murakoshi ,  Akira Namazue ,  Ken Osato

IPC: G02B6/44

CPC classification number: G02B6/448 ,  G02B6/4403

Abstract: An optical fiber ribbon includes: optical fibers disposed side by side in a predetermined direction; and connecting portions that connect two adjacent ones of the optical fibers. A peripheral resin portion is formed on a periphery of the optical fibers. An arithmetic mean roughness Ra of a surface of the peripheral resin portion is 0.41 μm or lower. A ten-point mean roughness Rz of a surface of the peripheral resin portion is 1.4 μm or lower.