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公开(公告)号：US09429717B2
公开(公告)日：2016-08-30
申请号：US14668365
申请日：2015-03-25
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Tatsuya Ohta , Akito Nishimura , Terutake Kobayashi , Kunihiko Fujiwara
CPC classification number: G02B6/3861 , G02B6/3636 , G02B6/4206 , G02B6/4214 , G02B6/4239 , G02B6/4284 , G02B6/4292
Abstract: A ferrule of the present invention includes a positioning mechanism for positioning an optical fiber, and a recess having at least a first inner wall for allowing a front end of the optical fiber portion positioned by the positioning mechanism to protrude, and a second inner wall opposite to the first inner wall. A distance between the first inner wall and the second inner wall is less than or equal to four times the outer diameter of the optical fiber. Adhesive is filled into the recess and cured in a state in which the optical fiber protrudes from the first inner wall and substantially contacts the second inner wall to fix the optical fiber.
Abstract translation: 本发明的套圈包括用于定位光纤的定位机构，以及具有至少第一内壁的凹部，用于使由所述定位机构定位的所述光纤部的前端突出;以及第二内壁， 到第一个内壁。 第一内壁和第二内壁之间的距离小于或等于光纤的外径的四倍。 粘合剂被填充到凹部中并且在光纤从第一内壁突出并基本上接触第二内壁并固定光纤的状态下固化。
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公开(公告)号：US11675142B2
公开(公告)日：2023-06-13
申请号：US17299610
申请日：2019-09-17
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Hirotaka Asada
CPC classification number: G02B6/3882 , G02B6/3853 , G02B6/3885 , G02B6/403
Abstract: A ferrule includes: a ferrule body including a first body-side guide hole into which a first guide pin is inserted, a second body-side guide hole into which a second guide pin is inserted, and an optical fiber holder that holds an optical fiber; and a lens plate including a first plate-side guide hole into which the first guide pin is inserted, a second plate-side guide hole into which the second guide pin is inserted, a lens part, and an abutment surface that an end face of the optical fiber abuts. The first guide pin fits the first body-side guide hole and the first plate-side guide hole. The second guide pin fits one of the second body-side guide hole or the second plate-side guide hole.
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公开(公告)号：US20220003940A1
公开(公告)日：2022-01-06
申请号：US17294916
申请日：2019-09-17
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Hirotaka Asada
Abstract: A ferrule includes: a main body configured to hold an end of a first optical fiber and an end of a second optical fiber parallel to the first optical fiber; and a lens plate including a first abutment surface configured to abut against an end face of the first optical fiber, a second abutment surface configured to abut against an end face of the second optical fiber, a first lens configured to face the end face of the first optical fiber, and a second lens configured to face the end face of the second optical fiber. The first abutment surface is inclined with respect to a plane perpendicular to a first optical axis of the first optical fiber. The second abutment surface is inclined with respect to a plane perpendicular to a second optical axis of the second optical fiber.
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公开(公告)号：US11199667B2
公开(公告)日：2021-12-14
申请号：US16068875
申请日：2017-03-15
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Shigeo Takahashi , Hirotaka Asada
IPC: G02B6/38
Abstract: An optical-fiber-attached ferrule includes: an optical fiber hole into which an optical fiber is inserted and fixed with a first adhesive; and an adhesive-filling section including an opening surface and an opposed surface opposite the opening surface. The adhesive-filling section is filled with a second adhesive that is softer than the first adhesive with an end surface of the optical fiber positioned closer to the opposed surface than to the opening surface.
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公开(公告)号：US10802226B2
公开(公告)日：2020-10-13
申请号：US16348183
申请日：2017-10-23
Applicant: FUJIKURA LTD.
Inventor： Junichi Nakane , Kunihiko Fujiwara , Shigeo Takahashi , Akihiro Nakama , Hirotaka Asada
Abstract: A cleaning tool for cleaning a plurality of optical connectors where the cleaning tool includes: an adhesive portion that is integrally formed with the cleaning tool and that contacts a plurality of connecting end faces of the optical connectors collectively. The plurality of optical connectors are inserted into and connected with one housing that is fitted with another housing. The adhesive portion is disposed on the other housing. The adhesive portion contacts the connecting end faces collectively by fitting the one housing with the other housing.
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Patent Agency Ranking
公开(公告)号：US20190369337A1
公开(公告)日：2019-12-05
申请号：US16348183
申请日：2017-10-23
Applicant: FUJIKURA LTD.
Inventor： Junichi Nakane , Kunihiko Fujiwara , Shigeo Takahashi , Akihiro Nakama , Hirotaka Asada
Abstract: A cleaning tool for cleaning a plurality of optical connectors where the cleaning tool includes: an adhesive portion that is integrally formed with the cleaning tool and that contacts a plurality of connecting end faces of the optical connectors collectively. The plurality of optical connectors are inserted into and connected with one housing that is fitted with another housing. The adhesive portion is disposed on the other housing. The adhesive portion contacts the connecting end faces collectively by fitting the one housing with the other housing.
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公开(公告)号：US10222559B2
公开(公告)日：2019-03-05
申请号：US15560852
申请日：2016-01-29
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Shigeo Takahashi , Tatsuya Ota
Abstract: A ferrule holds end portions of optical fibers and includes: a plurality of optical fiber holes arranged in a predetermined direction, wherein the optical fibers are inserted into the plurality of optical fiber holes; and an adhesive-filling section that is filled with an adhesive and internally includes an opening surface of the plurality of optical fiber holes and an opposed surface opposed to the opening surface. The adhesive-filling section includes an upper side opening and a lower side opening, the upper side opening opens on a top surface that is a surface on a side from which the adhesive is filled, and the lower side opening opens on a lower surface that is a surface on a side opposite to the top surface.
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公开(公告)号：US10209455B2
公开(公告)日：2019-02-19
申请号：US15569660
申请日：2016-12-05
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Shigeo Takahashi
Abstract: An optical-fiber-attached ferrule includes: an optical fiber hole into which an optical fiber is inserted; and a filling section filled with a liquid refractive index-matching material. The filling section internally includes an opening surface of the optical fiber hole and an opposed surface that is opposed to the opening surface, and the filling section is filled with the liquid refractive index-matching material while an end surface of the optical fiber inserted into the optical fiber hole abuts with the opposed surface
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公开(公告)号：US11966087B2
公开(公告)日：2024-04-23
申请号：US17415463
申请日：2019-10-03
Applicant: FUJIKURA LTD.
Inventor： Hirotaka Asada , Akihiro Nakama , Akito Nishimura , Takahiko Sabano
CPC classification number: G02B6/3838 , G02B6/32 , G02B6/3853 , G02B6/3861 , G02B6/3885 , G02B6/40
Abstract: A ferrule structure includes a ferrule including a plurality of unit holes, and a plurality of lens units, wherein each lens unit includes a lens part attached to an end part of an optical fiber, and each lens unit is molded from a resin for transmittance an optical signal, and each lens unit is to be inserted in one of the unit holes.
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公开(公告)号：US20220075124A1
公开(公告)日：2022-03-10
申请号：US17415463
申请日：2019-10-03
Applicant: FUJIKURA LTD.
Inventor： Hirotaka Asada , Akihiro Nakama , Akito Nishimura , Takahiko Sabano
Abstract: A ferrule structure includes a ferrule including a plurality of unit holes, and a plurality of lens units, wherein each lens unit includes a lens part attached to an end part of an optical fiber, and each lens unit is molded from a resin for transmittance an optical signal, and each lens unit is to be inserted in one of the unit holes.
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