Sumitomo Electric Industries, Limited

Nippon Telegraph and Telephone Corporation

Sumitomo Electric Optifrontier Co., Ltd.

Matsushita Electric Works, Ltd.

Japan Communication Accessories Manufacturing Co., Ltd.

The Furukawa Electric Co., Ltd.

Fujikura Limited

Senko Advanced Components, Inc.

Daizo Nishioka

Kenichiro Ohtsuka

Yukihiro Yokomachi

Toshifumi Hosoya

Tomohiko Ueda

Yoshikyo Tamekuni

Motoyoshi Kimura

Takayasu Yamauchi

Takahiro Inaba

Yoshinobu Toda

Eisuke Sasaoka

Toshiaki Kakii

Takemi Hasegawa

Wataru Sakurai

Hiroshi Katsura

Mitsumasa Seita

Yohei Aoshima

Yoshio Ukita

Yoshihiro Takeyama

Kei Sunaga

Yusuke Takai

Yuko Masunaga

Kazuyoshi Takano

Kazuhiro Takizawa

Kenji Iizumi

Kazuhito Saito

Kenichi Suzuki

Man Ming Ho

Keisuke Okada

Masato Shiino

Yoshiyuki Nakashima

Junji Fukui

Naoko Shimoji

Masahiro Hamada

Katsuyuki Aihara

Tsuyoshi Imaizumi

Kenichi Nakazawa

Hisahiko Narukawa

Keiichiro Sugimoto

Shinsuke Sato

Yoshihiro Shogaki

Shinichi Niwa

Kuniaki Terakawa

Yasuhiko Hoshino

Yuji Matsumoto

Tuan Nghia Duong

Masanobu Toyonaga

Hiroyuki Tanase

Tatsuya Nakajima

Masashi Awamori

Kazuyuki Miwa

Tunetaka Ema

Daigo Saitoh

A package for an optical fiber includes: a base portion; a plurality of protruding portions that protrude from a flat surface of the base portion, are arranged along an outer periphery of the base portion, and are configured so that an optical fiber including a connector mounted to at least one end thereof is wound along a part of an outer periphery of each of the protruding portions; a mounting portion to which the connector of the optical fiber is to be mounted; and a plurality of fall-off preventing portions that are formed integrally with the base portion and capable of restricting a position of the optical fiber to be wound over the plurality of protruding portions.

Package for optical fiber, package product, method for extracting optical fiber, and jig

A cap for an optical connector adaptor, including: a base portion including a first surface and a second surface provided on an opposite side of the first surface; a grip portion formed by protruding from the first surface of the base portion; a fitting portion configured to protrude from the second surface of the base portion and to be fitted to an optical connector adapter; and a cover portion that is formed over the whole outer periphery of the base portion, in which the second surface includes a contact surface where the optical connector adapter and the cap for an optical connector adaptor contact each other, and in which the cover portion is configured to surround the contact surface from the outer periphery of the base portion.

Cap for optical connector adapter and optical connector assembly

An optical connector including a housing body having a ferrule, an outer housing, a latch, and a tab is disclosed. The latch extends from a proximal end toward a front end of the optical connector and includes an engaging part at a distal end. The tab is placed on an outer side of the latch, movable with respect to the outer housing, and pushes down the engaging part toward the housing body according to movement of the tab. The distal end of the latch floats to space apart from the housing body. A first protrusion is disposed on an inner side of the tab. The optical connector is configured to contact an inner side of the latch with the first protrusion to push down the engaging part toward the housing body with the first protrusion as a fulcrum when the engaging part is engaged with the external device.

Optical connector

An optical fiber cleaver includes: a body unit on which an optical fiber extending in a first direction is loaded; a lid unit connected to the body unit to be rotatable and openable; a pair of retainers arranged to be separate from each other in the first direction and retain the optical fiber between the pair of retainers when the lid unit is closed with respect to the body unit; a blade member that comes into contact with the optical fiber from one direction side of a second direction intersecting the first direction between the pair of retainers and hurt the optical fiber; and a movement unit that brings the blade member into contact with the optical fiber from the one direction side of the second direction and move the blade member to one direction side of a third direction intersecting the first direction and the second direction.

Optical fiber cleaver and optical fiber cleaving method

A connector extracting jig according to an embodiment is a connector extracting jig for extracting an optical connector connected to a component to be connected along a connection direction from the component to be connected, the optical connector including a latch engaged with the component to be connected, the latch having a protrusion which is can be pushed down, and the protrusion releasing the engagement of the latch with the component to be connected when being pushed down, the connector extracting jig including: a butting part configured to butt on the optical connector in the connection direction; and a pushing-down part configured to be positioned closer to the component to be connected than the butting part and face the protrusion along a first direction intersecting the connection direction when the butting part butts on the optical connector.

Connector removal tool

A fiber optic connector with a rotatable housing integrated with a connection member for converting the connector from a first polarity to a second polarity, and a manipulator assembly comprising the rotatable housing and a locking member movable between a locked position and an unlocked position, the manipulator assembly being coupled to the connection member such that the manipulator assembly and the connection member rotate conjointly about the axis of rotation, and when in locked position connector polarity cannot be changed.

Adjustable polarity fiber optic connector assembly with shortened rotatable boot assembly

An optical connector includes: a ferrule; a mechanical splice mechanically connecting an optical fiber to a shorter fiber; an optical fiber holder fixing the optical fiber in position; a joint member connecting the mechanical splice to the optical fiber holder; a housing accommodating the ferrule and the mechanical splice therein; a rear body accommodating at least a part of the optical fiber holder; and a coil spring urging the mechanical splice toward the front. The joint member is arranged in at least one of the housing and the rear body. The rear body has a guide wall to guide the optical fiber into the mechanical splice, and the guide wall is arranged between the mechanical splice and the optical fiber holder and has a tapered inner wall surface expanding from the mechanical splice toward the fiber holder.

A coating removal tool includes a base part and a cover part, to remove a coating of an optical fiber by overlapping the cover part and the base part. The base part and the cover part are made of resin, and include at least a pair of coating removal blades including a base front blade portion provided on the base part and a cover front blade portion provided on the cover part. The base part includes a V-groove which sandwiches the optical fiber in either one or both of a front and rear of the optical fiber in the longitudinal direction and the cover part includes a V-groove which sandwiches the optical fiber and is provided on a side where the V-groove exists in the front and rear of the longitudinal direction in a state where the cover part and the base part are overlapped.

Coating removal tool

There is provided an optical connector construction tool, which is constructed as a single component, and is compact in size and simple, wherein the construction tool allows an operation of withdrawing a wedge to be more reliably performed, and a manufacturing costs to be reduced. The optical connector construction tool comprises a base plate, a wedge provided to a bottom surface of the base plate and inserted into a mechanical splice part of an optical connector, a pair of arms extending from both sides of the base plate, and protrusions projecting from the arms toward the base plate, the protrusions engaging with the bottom of the base plate and deflecting the base plate upward as a result of the arms being laterally brought together.

Optical connector construction tool

Provided is an optical fiber connection method for using an optical fiber connector which includes a mechanical splice designed to connect a first optical fiber having a coating diameter D to mechanically connect two optical fibers that include a second optical fiber having a coating diameter d smaller than the coating diameter D. This method includes a first step of inserting the second optical fiber into a tube () to obtain a tubed optical fiber (); a second step of fixing the tubed optical fiber () in a fiber holder (); a third step of inserting the tubed optical fiber () into the mechanical splice () and placing distal ends of the two optical fibers including the tubed optical fiber () end to end; and a fourth step of fixing the tubed optical fiber () in the mechanical splice () in a state in which the distal ends of the two optical fibers are placed end to end.

Method for connecting optical fibers

An optical cable gripping member which prevents the kinds of splicing devices from being diversified, thereby enabling reduction of the labor of component management and lowering of the production cost to be realized is obtained. In a cable gripping memberwhich is to be attached to a splicing deviceto hold an optical fiber cablefrom its outer sheath, a spacerwhich fills a gap between one inner wall surfaceof a tubular spacethrough which the optical fiber cableis to be passed, and the spacerin the tubular spaceis formed monolithically with one end of the one inner wall surfacein a manner that the spaceris attachable to and detachable from the one inner wall surface. The spaceris attached to or detached from the one inner wall surface, thereby enabling a plurality of optical fiber cables of different sizes to be held.

Optical cable gripping member

An optical connector assembling jig and an optical connector assembling method includes an optical connection. The optical connector assembling jig includes a base and a guide. The base is provided in a longitudinal direction with an accommodation groove for accommodating an optical fiber, and a rear pressing member for restraining a rear part of the optical fiber accommodated in the accommodation groove. The rear part is set apart from an embedded fiber. The guide has a front holding portion for holding a front part of the optical fiber accommodated in the accommodation groove. The front part is near the embedded fiber, and the guide is capable of moving in the longitudinal direction. Moving the base toward the optical connector causes the intermediate section of the optical fiber to separate from the accommodation groove and bend. By moving the base further toward the optical connector, a buffered fiber in the optical fiber can be connected to the embedded fiber.

Optical connector assembling jig and optical connector assembling method

An optical connector according to an embodiment of the present invention comprises (a) a ferrule incorporating a short fiber; (b) a mechanical splice having a holding part and a fixing part, and adapted so that the fixing part mechanically fixes the short fiber extending from the ferrule held by the holding part, and an optical fiber in an optical cable to butt the short fiber; (c) an outer housing having a housing part in which the mechanical splice is located, and a pair of flexible arms located on both sides of the housing part, the pair of arms each being provided with a locking claw at a tip; and (d) a jacket fixture for fixing a cable jacket, the jacket fixture being coupled to the mechanical splice so that the cable jacket is inserted therein.

Optical connector, and method of assembling optical connector

An optical connector has a simple structure and a method of attaching an optical fiber cord to the connector is easy. The connectorincludes: a plug partwhich has a capillaryprovided at the front and containing a built-in optical fiberand which includes a mechanical splicing portioncapable of allowing an optical fiberto be inserted from the rear so as to be fixed therein; a caulking standcapable of holding a sheath by radially contracting in a state in which the optical fiber cordis inserted therein; a caulking ringprovided outside the cylindrical portionof the standso as to hold the tension memberbetween the ringand the standand a coupling bodyprovided behind the plug partand accommodating the standand the ring

Optical connector and method of attaching optical fiber cord to optical connector

The present invention relates to a low-cost attachable/detachable optical fiber connector, and the like. The optical fiber connector comprises first and second fiber connecting members. The first fiber connecting members has a ferrule that holds a first optical fiber in its inserting hole in a slidable state, a housing that covers the first optical fiber, and a fixing member that fixes the inserted first optical fiber to the housing behind the ferrule so as not to protrude out from the ferrule. The second fiber connecting members has a housing that has a ferrule engaging portion having a recess therein and an optical fiber holding portion that holds a second optical fiber in its inserting hole in a slidable state, and a fixing member that fixes the inserted second optical fiber to the housing behind the optical fiber holding portion so as to protrude into the recess from the optical fiber holding portion.

Optical fiber connector, optical fiber connecting method, and connector converter

Growing community of inventors

Yokohama, Japan

Daizo Nishioka