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公开(公告)号：US20180196214A1
公开(公告)日：2018-07-12
申请号：US15863372
申请日：2018-01-05
Applicant: FUJIKURA LTD.
Inventor： Katsushi Agata , Norihiro Momotsu , Terutake Kobayashi
IPC: G02B6/44
CPC classification number: G02B6/4471 , G02B6/4446
Abstract: A fiber arrangement member includes: a tubular housing that houses a plurality of optical fibers; and a plurality of guide portions extending from a first end in an axial direction of the housing toward side areas of the first end. The guide portions extend from the housing in different directions from each other crossing an axial line of the housing. The guide portions comprise guide grooves that house the optical fibers and communicate with an inner space of the housing. The grooves are open at sides of the grooves opposite to a second end in the axial direction of the housing on entire lengths in extending directions of the grooves. The grooves selectively house the optical fibers extended from the first end in the axial direction of the housing. The optical fibers housed in one of the grooves move into another of the grooves.
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公开(公告)号：US20200049885A1
公开(公告)日：2020-02-13
申请号：US16496187
申请日：2018-01-12
Applicant: Fujikura Ltd.
Inventor： Terutake Kobayashi , Norihiro Momotsu
IPC: G02B6/245
Abstract: A jacket removal tool for an optical cable in which a rip cord is buried in a jacket is provided. The jacket removal tool includes: a blade that shaves the jacket; and a blade counterpart. An opening through which a part of the jacket shaved by the blade passes is disposed between the blade and the blade counterpart. The blade counterpart includes: a counter bottom surface along the optical cable; a counter side surface connected to the counter bottom surface; and an edge that connects the counter bottom surface and the counter side surface and that is disposed along a perpendicular line extending from a cutting edge of the blade with respect to the counter bottom surface. The edge is parallel to a blade line of the cutting edge.
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公开(公告)号：US10209474B2
公开(公告)日：2019-02-19
申请号：US15863372
申请日：2018-01-05
Applicant: FUJIKURA LTD.
Inventor： Katsushi Agata , Norihiro Momotsu , Terutake Kobayashi
IPC: G02B6/44
Abstract: A fiber arrangement member includes: a tubular housing that houses a plurality of optical fibers; and a plurality of guide portions extending from a first end in an axial direction of the housing toward side areas of the first end. The guide portions extend from the housing in different directions from each other crossing an axial line of the housing. The guide portions comprise guide grooves that house the optical fibers and communicate with an inner space of the housing. The grooves are open at sides of the grooves opposite to a second end in the axial direction of the housing on entire lengths in extending directions of the grooves. The grooves selectively house the optical fibers extended from the first end in the axial direction of the housing. The optical fibers housed in one of the grooves move into another of the grooves.
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公开(公告)号：US10146019B2
公开(公告)日：2018-12-04
申请号：US15863270
申请日：2018-01-05
Applicant: FUJIKURA LTD.
Inventor： Katsushi Agata , Norihiro Momotsu , Terutake Kobayashi
Abstract: An optical connector retaining unit includes: an optical connector retaining member that retains an optical connector of a distal end of an optical fiber in a connection standby state being optically connected to nothing; and a reflecting section that reflects visible light emitted from the distal end of the optical fiber after led into a proximal end of the optical fiber opposite to the distal end thereof provided with the optical connector, at an inclination angle of 45 degrees or less with respect to an optical axis of the emitted visible light, or a scattering section that scatters visible light emitted from the distal end of the optical fiber such that scattered light includes light within the inclination angle of 45 degrees or less with respect to the optical axis of the emitted visible light.
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Patent Agency Ranking
公开(公告)号：US09739949B2
公开(公告)日：2017-08-22
申请号：US15080814
申请日：2016-03-25
Applicant: FUJIKURA LTD.
Inventor： Hiroyuki Takamizawa , Terutake Kobayashi , Hiroshi Furukawa
CPC classification number: G02B6/325 , G02B6/02052 , G02B6/382 , G02B6/3822 , G02B6/3825 , G02B6/3833 , G02B6/3845 , G02B6/3846 , G02B6/3853 , G02B6/3882 , G02B6/3885
Abstract: A ferrule with a fiber of this disclosure includes: a ferrule including a positioning hole, a plurality of fiber holes, and an endface perpendicular to an axial direction of the fiber holes; a lensed fiber with a GRIN lens that has been fusion spliced to a tip of an optical fiber; and a plate that can transmit light propagating through the optical fiber, the plate being attached to the endface of the ferrule, the plate being contacted against with an endface of the lensed fiber that has been inserted into each of the fiber holes, wherein the ferrule is formed with a recess that is depressed from the endface of the ferrule, a refractive index matching material is filled in a space surrounded with the plate and the recess.
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公开(公告)号：US10725261B2
公开(公告)日：2020-07-28
申请号：US15774219
申请日：2016-05-31
Applicant: FUJIKURA LTD.
Inventor： Terutake Kobayashi , Norihiro Momotsu
Abstract: An optical fiber-cable branch member includes: a branch member main body; a cable fixing portion that holds and fixes an end portion of a jacket of an optical fiber-cable onto the branch member main body; and a tube fixing portion that fixes a plurality of protective tubes onto the branch member main body. The optical fiber-cable includes a first optical fiber core bundle and the jacket, and the jacket coats an outer circumference of the first optical fiber core bundle and includes a tension-resisting member buried in a cable longitudinal direction. The plurality of protective tubes cover and protect respective outer circumferences of a plurality of second optical fiber core bundles obtained by branching the first optical fiber core bundle extending from the end portion of the jacket.
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公开(公告)号：US20180329167A1
公开(公告)日：2018-11-15
申请号：US15774219
申请日：2016-05-31
Applicant: FUJIKURA LTD.
Inventor： Terutake Kobayashi , Norihiro Momotsu
IPC: G02B6/44
Abstract: An optical fiber-cable branch member includes: a branch member main body; a cable fixing portion that holds and fixes an end portion of a jacket of an optical fiber-cable onto the branch member main body; and a tube fixing portion that fixes a plurality of protective tubes onto the branch member main body. The optical fiber-cable includes a first optical fiber core bundle and the jacket, and the jacket coats an outer circumference of the first optical fiber core bundle and includes a tension-resisting member buried in a cable longitudinal direction. The plurality of protective tubes cover and protect respective outer circumferences of a plurality of second optical fiber core bundles obtained by branching the first optical fiber core bundle extending from the end portion of the jacket.
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公开(公告)号：US20180196204A1
公开(公告)日：2018-07-12
申请号：US15863270
申请日：2018-01-05
Applicant: FUJIKURA LTD.
Inventor： Katsushi Agata , Norihiro Momotsu , Terutake Kobayashi
CPC classification number: G02B6/3895 , G02B5/0284 , G02B6/3825 , G02B6/3879 , G02B6/3897
Abstract: An optical connector retaining unit includes: an optical connector retaining member that retains an optical connector of a distal end of an optical fiber in a connection standby state being optically connected to nothing; and a reflecting section that reflects visible light emitted from the distal end of the optical fiber after led into a proximal end of the optical fiber opposite to the distal end thereof provided with the optical connector, at an inclination angle of 45 degrees or less with respect to an optical axis of the emitted visible light, or a scattering section that scatters visible light emitted from the distal end of the optical fiber such that scattered light includes light within the inclination angle of 45 degrees or less with respect to the optical axis of the emitted visible light.
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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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