公开(公告)号：US09541706B2

公开(公告)日：2017-01-10

申请号：US14166470

申请日：2014-01-28

Applicant: FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroyuki Morioka ,  Takashi Yamaguchi ,  Kazuhiro Takizawa ,  Kazutoshi Takamizawa ,  Tetsuhiro Numata ,  Atsushi Hamaoka ,  Atsushi Daido ,  Tadashi Sasaki ,  Masahiro Ida ,  Hayato Minami ,  Chihiro Suzuki

IPC: G02B6/255 ,  G02B6/38

CPC classification number: G02B6/3802 ,  G02B6/2555 ,  G02B6/3801 ,  G02B6/3803 ,  Y10T29/49826

Abstract: A mechanical splice unit of the invention includes: a mechanical splice having an optical fiber guide groove that is formed at matching surfaces of both a base and a lid in a two-part-divided structure, the mechanical splice being capable of grasping a first optical fiber at one end side of the lid; and an optical fiber splice auxiliary tool used for splice of the first optical fiber that is grasped by the mechanical splice, wherein the optical fiber splice auxiliary tool includes: a mechanical splice grasping portion that holds the mechanical splice; and a guided portion that is slidable along a guide portion formed at a splicing tool to which a second optical fiber to be spliced to the first optical fiber is fixed.

Abstract translation: 本发明的机械接头单元包括：机械接头，其具有光纤引导槽，其形成在两部分分割结构的基座和盖的匹配表面处，机械接头能够抓住第一光学 纤维在盖的一端侧; 以及用于由所述机械接头抓住的所述第一光纤的接合的光纤接合辅助工具，其中所述光纤接合辅助工具包括：保持所述机械接头的机械接头抓握部; 以及可沿着形成在拼接工具上的引导部分滑动的被引导部分，固定有待接合到第一光纤的第二光纤。

公开(公告)号：US08875403B2

公开(公告)日：2014-11-04

申请号：US14039974

申请日：2013-09-27

Applicant: Fujikura Ltd.

Inventor： Takashi Yamaguchi ,  Kazuhiro Takizawa

IPC: G02B6/245 ,  H02G1/12 ,  G02B6/38

CPC classification number: G02B6/245 ,  G02B6/3866

Abstract: A coating removal tool used for an optical fiber includes: a base; and a pair of arm members extending in one direction from the base. Also, the arm members, each of which comprises an elastically deformable deformation portion on a base side, and an operation portion which is closer to a tip end side than the deformation portion, contact portions in a wedge shape are provided on the inner sides of operation portions, respectively, the inner sides opposing to each other so that tip edges of contact portions oppose to each other, and grip portions are provided outside the operation portions, respectively, and a coating of an optical fiber is configured to be removed by pulling out the optical fiber in a state where the tip edges of the contact portions are brought into contact with the optical fiber disposed along an extending direction of the arm members.

Abstract translation: 用于光纤的涂层去除工具包括：基底; 以及一对从基座向一个方向延伸的臂构件。 此外，臂构件，其每一个包括在基部侧上的可弹性变形的变形部分和比变形部分更靠近前端侧的操作部分，楔形的接触部分设置在 操作部分分别相互相对的内侧，使得接触部分的顶端边缘彼此相对，并且夹持部分别设置在操作部分的外侧，并且光纤的涂层被构造成通过拉动被去除 在使接触部的前端缘与沿臂构件的延伸方向配置的光纤接触的状态下使光纤退出。

公开(公告)号：US09239435B2

公开(公告)日：2016-01-19

申请号：US14283402

申请日：2014-05-21

Applicant: FUJIKURA, LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Shigeo Takahashi ,  Takashi Yamaguchi ,  Tatsumi Miyazaki ,  Kazuhiro Takizawa ,  Tetsuhiro Numata ,  Kazutoshi Takamizawa ,  Atsushi Daido ,  Tadashi Sasaki ,  Hayato Minami

IPC: G02B6/38

CPC classification number: G02B6/3861 ,  G02B6/3821 ,  G02B6/3887

Abstract: An optical fiber cable having an optical connector, includes: an optical connector assembled on a tip portion of an optical fiber cable, including a ferrule in which an optical fiber protruding from a terminal of the optical fiber cable is inserted and fixed; and a reinforced portion formed by heating and shrinking a heat-shrinkable tube and by solidifying a hot-melt adhesive of an inner portion of the heat-shrinkable tube after melting the hot-melt adhesive so as to integrate a rear end portion of the ferrule, the tip portion of the optical fiber cable which is disposed so as to be separated in a rear side of the ferrule, and the heat-shrinkable tube which accommodates the rear end portion of the ferrule and the tip portion of the optical fiber cable and in which the hot-melt adhesive is disposed in the inner portion of the heat-shrinkable tube.

Abstract translation: 一种具有光连接器的光纤电缆，包括：光连接器，其组装在光纤电缆的前端部分上，该光连接器包括插入并固定从光纤电缆的端子突出的光纤的套圈; 以及通过加热收缩热收缩管而形成的加强部分，并且在熔化热熔性粘合剂之后固化热收缩管的内部的热熔粘合剂以使套圈的后端部分 在光纤电缆的后侧设置有分离的光纤电缆的前端部，以及容纳套圈的后端部和光纤电缆的前端部的热收缩管， 其中热熔性粘合剂设置在热收缩管的内部。

公开(公告)号：US09091825B2

公开(公告)日：2015-07-28

申请号：US14108646

申请日：2013-12-17

Applicant: FUJIKURA LTD.

Inventor： Shigeo Takahashi ,  Kazuhiro Takizawa

IPC: G02B6/36 ,  G02B6/00 ,  G02B6/38 ,  G02B6/255

CPC classification number: G02B6/387 ,  G02B6/2558 ,  G02B6/3833 ,  G02B6/3846 ,  G02B6/3849 ,  G02B6/3882 ,  G02B6/3885 ,  G02B6/3887 ,  G02B6/3898 ,  Y10T29/4989 ,  Y10T29/49908 ,  Y10T156/10

Abstract: An optical fiber connector includes a ferrule, an inserted optical fiber, an external optical fiber, and a pair of reinforcing members that pinches and reinforces a fusion-spliced portion of the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The reinforcing members include adhesion layer on the inner surface thereof which comes in contact with the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The adhesion layer is depressed at the position where the inserted optical fiber and the external optical fiber come in contact with each other so as to closely adhere to the outer circumferential surfaces of the optical fibers in the fusion-spliced portion.

Abstract translation: 光纤连接器包括套圈，插入光纤，外部光纤，以及一对加强构件，其夹持并加强插入的光纤的另一端部的熔接部分和插入的光纤的前端部分 外部光纤。 加强构件包括在其内表面上与插入的光纤的另一端部和外部光纤的前端部接触的粘附层。 在插入的光纤和外部光纤彼此​​接触的位置处，粘附层被压下，以便紧密地粘合到熔接部分中的光纤的外周表面。

公开(公告)号：US10025037B2

公开(公告)日：2018-07-17

申请号：US15342257

申请日：2016-11-03

Applicant: FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroyuki Morioka ,  Takashi Yamaguchi ,  Kazuhiro Takizawa ,  Kazutoshi Takamizawa ,  Tetsuhiro Numata ,  Atsushi Hamaoka ,  Atsushi Daido ,  Tadashi Sasaki ,  Masahiro Ida ,  Hayato Minami ,  Chihiro Suzuki

IPC: G02B6/38

Abstract: A method of splicing an optical fiber of the invention splices a first optical fiber cable and an optical fiber in a splicing box, the first optical fiber cable is a drop cable or an indoor cable, the optical fiber is drawn from a second optical fiber cable, the method splices a terminal of the first optical fiber cable and the optical fiber. The method includes: sliding a unit base holding an extended-optical-fiber-attached splice along a rail in a direction in which the unit base approaches a grasper; thereby inserting an inserted optical fiber grasped by the grasper between halved elements of a mechanical splice; and splicing the inserted optical fiber and an extended optical fiber by butt-jointing an end of the inserted optical fiber to the extended optical fiber.

公开(公告)号：US09933581B2

公开(公告)日：2018-04-03

申请号：US15300494

申请日：2015-03-31

Applicant: FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takaharu Matsuda ,  Hung Huu Luong ,  Tatsuya Ota ,  Kazuhiro Takizawa ,  Hiroichi Katayose ,  Koji Ishizuka ,  Makoto Shinpo ,  Kunihiro Toge

IPC: G02B6/36 ,  G02B6/38 ,  G02B6/44

CPC classification number: G02B6/382 ,  G02B6/3806 ,  G02B6/3821 ,  G02B6/3846 ,  G02B6/3881 ,  G02B6/443 ,  G02B6/4471

Abstract: An optical fiber splicer includes a fiber fixing portion, a first optical fiber fixed to the fiber fixing portion, a clamp portion which is capable of holding and fixing an extending portion extended from the fiber fixing portion of the first optical fiber and a tip portion of a second optical fiber optically connected to the extending portion of the first optical fiber between a base member and a pressing member being openable and closable with respect to the base member, and a solid index matching material which is attached to a tip surface of the extending portion of the first optical fiber and is interposed between the first optical fiber and the second optical fiber.

公开(公告)号：US10353153B2

公开(公告)日：2019-07-16

申请号：US15126137

申请日：2015-03-17

Applicant: FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takashi Yamaguchi ,  Takaharu Matsuda ,  Hung Huu Luong ,  Kazuhiro Takizawa ,  Keisuke Yoneda ,  Kazutoshi Takamizawa ,  Yuji Aoyagi ,  Katsushi Nakayachi

IPC: G02B6/38

Abstract: A method of manufacturing an optical connector according to the invention includes: holding a first optical fiber by a pair of holding members at a position apart from an end face of a second end and through both sides thereof in a radial direction, the first optical fiber being provided with a solid refractive index-matching material layer, the refractive index-matching material layer being formed on the end face of the second end on an opposite side of an end face of a first end exposed to a front end of a ferrule; and inserting the first optical fiber into a fiber hole of the ferrule through the first end.

公开(公告)号：US09927583B2

公开(公告)日：2018-03-27

申请号：US14668575

申请日：2015-03-25

Applicant: FUJIKURA LTD.

Inventor： Akihiro Nakama ,  Shigeo Takahashi ,  Kazuhiro Takizawa

IPC: G02B6/38 ,  G02B6/255

CPC classification number: G02B6/3846 ,  G02B6/2558 ,  G02B6/3847 ,  G02B6/3853 ,  G02B6/387 ,  G02B6/3885 ,  G02B6/3887

Abstract: An optical connector comprises a housing, a regulating portion which is protrudes toward an inner surface of the housing, a ferrule which is secured to an optical fiber and which is accommodated inside the housing so as to be movable. The ferrule includes a base portion and a thinned portion that has a thickness smaller than that of the base portion. If the ferrule moves forward in the butt-connection direction, the regulating portion and the base portion approach each other, so that the regulating portion regulates the movement of the ferrule in the thickness direction. If the ferrule moves backward in the butt-connection direction, the ferrule reaches a position where the thinned portion faces the regulating portion, so that the movement of the ferrule in the thickness direction is not regulated by the regulating portion.

公开(公告)号：US09494743B2

公开(公告)日：2016-11-15

申请号：US14201352

申请日：2014-03-07

Applicant: FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroyuki Morioka ,  Takashi Yamaguchi ,  Kazuhiro Takizawa ,  Kazutoshi Takamizawa ,  Atsushi Daido ,  Masahiro Ida

IPC: G02B6/36 ,  G02B6/255 ,  G02B6/38

CPC classification number: G02B6/3803 ,  G02B6/3802 ,  G02B6/3806 ,  G02B6/3809

Abstract: An optical fiber splicing unit includes: a mechanical splice which aligns optical fibers and puts the optical fibers between half-split elements to splice the optical fibers to each other; a splice holder portion which holds the mechanical splice; fixing member guide portions which respectively guide anchoring fixation members that are respectively fixed to the optical fibers at two sides of the held mechanical splice; anchoring portions which respectively anchor the anchoring fixation members, the anchoring fixation members being respectively guided by the fixing member guide portions and advancing; and a first spacer which abuts one anchoring fixation member and is disposed to be retracted to restrict the advancement of said one anchoring fixation member, said one anchoring fixation member being guided by one fixing member guide portion and advancing.

Abstract translation: 光纤拼接单元包括：机械接头，其对准光纤并将光纤放置在半分离元件之间以将光纤彼此接合; 保持机械接头的接头保持器部分; 固定构件引导部，其分别引导固定在所述保持的机械接头两侧的光纤的固定固定构件; 锚固部分​​分别锚固锚定固定构件，锚定固定构件分别由固定构件引导部分引导并前进; 以及第一间隔件，其邻接一个锚定固定构件并且被设置成缩回以限制所述一个锚定固定构件的前进，所述一个锚定固定构件由一个固定构件引导部分引导并前进。

公开(公告)号：US09411101B2

公开(公告)日：2016-08-09

申请号：US14668726

申请日：2015-03-25

Applicant: FUJIKURA LTD.

Inventor： Shigeo Takahashi ,  Kazuhiro Takizawa

IPC: G02B6/36 ,  G02B6/255 ,  G02B6/38

CPC classification number: G02B6/2558 ,  G02B6/3846 ,  G02B6/3849 ,  G02B6/3853 ,  G02B6/3861 ,  G02B6/3885 ,  G02B6/3887 ,  G02B6/3898 ,  Y10T29/4989 ,  Y10T29/49908 ,  Y10T29/49948 ,  Y10T29/49966 ,  Y10T29/53687 ,  Y10T156/10

Abstract: An optical fiber connector of the present invention includes: a ferrule; an inserted optical fiber of which one end portion is fixed to the ferrule and of which the other end portion protrudes from the ferrule; an external optical fiber of which a front end portion is fusion-spliced to the other end portion of the inserted optical fiber; and one or more reinforcing members configured to reinforce the fusion-spliced portion of the other end portion of the inserted optical fiber and the front end portion of the external optical fiber, wherein the ferrule comprises a lens located on an extension line of the inserted optical fiber.

Abstract translation: 本发明的光纤连接器包括：套圈; 一个插入的光纤，其一个端部固定到套圈上，另一个端部从套圈突出; 外部光纤，其前端部熔接到插入的光纤的另一端部; 以及一个或多个加强构件，其构造成加强插入的光纤的另一端部和外部光纤的前端部的熔接部分，其中，所述套圈包括位于插入的光纤的延长线上的透镜 纤维。