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公开(公告)号：US20230063916A1
公开(公告)日：2023-03-02
申请号：US17790852
申请日：2021-02-15
Applicant: Fujikura Ltd.
Inventor： Ryoichi Mitobe , Kansei Shindo
Abstract: A pulling terminal structure includes: a braided tube that includes a pulling part; a housing tube disposed inside the braided tube and that houses an optical connector; and a reinforcement member disposed inside the braided tube and that reinforces an end part of the housing tube.
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公开(公告)号：US20250012992A1
公开(公告)日：2025-01-09
申请号：US18706601
申请日：2022-06-29
Applicant: Fujikura Ltd.
Inventor： Shuhei Kanno , Kansei Shindo
Abstract: An optical cable structure includes connector-equipped optical fibers, derived from an end portion of a sheath of an optical cable, that are accommodated in a tubular member. Each of the connector-equipped optical fibers includes a derivation optical fiber from the end portion of the sheath and an optical connector disposed at a distal portion of the derivation optical fiber. Lengths of at least some of the derivation optical fibers are different from each other. Each of the derivation optical fibers includes a proximal-side optical fiber on an end portion side of the sheath, a distal-side optical fiber on an optical connector side, and a connecting portion connecting the proximal-side optical fiber to the distal-side optical fiber. The connecting portions are disposed in the tubular member when the connector-equipped optical fibers are accommodated in the tubular member.
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公开(公告)号：US11860431B2
公开(公告)日：2024-01-02
申请号：US17921836
申请日：2021-04-13
Applicant: Fujikura Ltd.
Inventor： Ryoichi Mitobe , Kansei Shindo
IPC: G02B6/44
CPC classification number: G02B6/44384 , G02B6/4431
Abstract: An optical cable traction terminal structure includes: a helically wound inner tube that houses an optical cable; and a flexible outer tube disposed on an outer circumferential surface of the helically wound inner tube, wherein a part of the flexible outer tube enters an inside of a groove on the outer circumferential surface of the helically wound inner tube.
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Patent Agency Ranking
公开(公告)号：US11947170B2
公开(公告)日：2024-04-02
申请号：US17312772
申请日：2019-10-02
Applicant: FUJIKURA LTD.
Inventor： Hirotaka Asada , Kansei Shindo , Kunihiko Fujiwara
CPC classification number: G02B6/3885 , G02B6/04 , G02B6/32 , G02B6/3825 , G02B6/3882 , G02B6/403
Abstract: A connector system includes: a first ferrule configured to hold end parts of multi-core fibers; a second ferrule configured to hold end parts of single-core fibers; and an optical connection member. The optical connection member is arranged between the first and the second ferrule, and includes an optical system configured to optically connect respective cores included in the multi-core fibers and the single-core fibers. A guide pin is formed on one of the first and the second ferrule, and a guide hole is formed in another of the first and the second ferrule. A through hole is formed in the optical connection member, and the first ferrule, the optical connection member, and the second ferrule can be aligned by fitting the guide pin in the guide hole through the through hole.
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公开(公告)号：US20220137303A1
公开(公告)日：2022-05-05
申请号：US17430572
申请日：2020-01-15
Applicant: Fujikura Ltd.
Inventor： Takahito Otomitsu , Shuhei Kanno , Kansei Shindo
IPC: G02B6/38
Abstract: A ferrule includes a ferrule body and a film. The ferrule body has a connecting end face that connects to another ferrule, a fiber hole into which an optical fiber inserts, and a recessed portion with a bottom surface that is recessed from the connecting end face at a depth. The film is disposed to cover the fiber hole that is open at a bottom surface of the recessed portion, and the film is thinner than a depth of the recessed portion.
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公开(公告)号：US12204160B2
公开(公告)日：2025-01-21
申请号：US17790852
申请日：2021-02-15
Applicant: Fujikura Ltd.
Inventor： Ryoichi Mitobe , Kansei Shindo
Abstract: A pulling terminal structure includes: a braided tube that includes a pulling part; a housing tube disposed inside the braided tube and that houses an optical connector; and a reinforcement member disposed inside the braided tube and that reinforces an end part of the housing tube.
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公开(公告)号：US20230161126A1
公开(公告)日：2023-05-25
申请号：US17921836
申请日：2021-04-13
Applicant: Fujikura Ltd.
Inventor： Ryoichi Mitobe , Kansei Shindo
IPC: G02B6/44
CPC classification number: G02B6/4494 , G02B6/4495
Abstract: An optical cable traction terminal structure includes: a helically wound inner tube that houses an optical cable; and a flexible outer tube disposed on an outer circumferential surface of the helically wound inner tube, wherein a part of the flexible outer tube enters an inside of a groove on the outer circumferential surface of the helically wound inner tube.
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8.发明公开公开(公告)号：US20230141383A1
公开(公告)日：2023-05-11
申请号：US17802703
申请日：2021-02-15
Applicant: FUJIKURA LTD.
Inventor： Ryoichi Mitobe , Kansei Shindo
CPC classification number: G02B6/4401 , G02B6/46
Abstract: A housing structure includes: an optical cable including optical fibers; connector units branching off from the optical cable; and a housing body that houses the connector units. Each of the connector units includes: a first tube through which the optical fibers pass; second tubes through each of which the optical fibers branching off from the first tube pass; and a connector group constituted by optical connectors that are each disposed at an end part of each of the second tubes. The connector group of each of the connector units is disposed at a different position in a length direction from the connector group of any other one of the connector units. The first tube of each of the connector units other than a first connector unit that is shortest among the connector units overlaps in the length direction the connector group of the first connector unit.
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