3M Innovative Properties Company

Nippon Telegraph and Telephone Corporation

Corning Research & Development Corporation

Takaya Yamauchi

Akihiko Yazaki

James R Bylander

Tomoyasu Oike

Donald Kent Larson

Sidney J Berglund

Wesley A Raider

Kenichi Nakazawa

Eric M Morgan

Yasuhiko Hoshino

Tsunetaka Ema

Kirk L Taylor

Tomayasu Oike

Michael R May

Hiroki Hagiwara

Paul N Winberg

James B Carpenter

Ronald Phillip Pepin

Joseph Christopher Sawicki

Johnny P Bryant

Akira Maruyama

Kuniaki Terakawa

Carl E Fisher

Tomoyuki Soga

Masanobu Toyonaga

Shingo Moriyasu

Hiroyuki Tanase

Tatsuya Nakajima

Masashi Awamori

Paul M Wendell

Yukino Miyoshi

Provided is an antenna structure that can be attached with ease and is likely to blend into environments. An antenna structureincludes: plural antenna elementsconfigured individually and arranged discretely; and a basewhich adheres to at least side surfaces of the antenna elements, in which the plural antenna elementsare embedded and fixed, and which forms a plate-like outer shape.

Antenna structure

A cable gripping structure for securing an optical fiber cable in an optical fiber connector possesses a base part and a pair of support walls disposed opposite one another on the base part, and blade parts for gripping the optical fiber cable are disposed on the pair of support walls, at the tip ends thereof and separated from the bases of the support walls.

Cable gripping structure and optical fiber connector

An optical connector having at least one removable integrated assembly tool for terminating an optical fiber cable is described. The connector comprises a housing configured to mate with a receptacle, a collar body disposed in the housing, a backbone that retains the collar body in the housing, a removable funnel-shaped and a fiber boot. The collar body secures a ferrule secured at a first end thereof, and includes mechanical element disposed in an intermediate portion and a buffer clamping portion near a second end of the collar body. The backbone has a mounting structure surrounding a central bore at one end. The funnel-shaped fiber guide attaches to the mounting structure to facilitate insertion of an optical fiber into the connector, and wherein the fiber boot is attachable to the mounting structure after the fiber guide has been removed.

Optical fiber connector with integrated installation tools

An optical fiber cable splicing box is provided that can easily connect together optical fiber cables that include a metal wire and an optical fiber. Optical fiber cable splicing boxincludes a pair of cable holdersA,B aligned in a predetermined direction fixed to a body, a mechanical splicethat optically connects together ends of optical fibersA andB, a pair of contact portionsA andB respectively provided on the pair of cable holdersA andB, and a metal platehaving conductivity. The contact portionsA andB include a first connecting portionthat is electrically connected to metal wiresandof optical fiber cablesA andB by penetrating into a jacket, and a base portionthat is electrically conducting with the first connecting portionand electrically connected to a metal plate

Optical fiber cable splicing box

An optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable onto an end of a fiber stub predisposed in the splice means to form an optical connection. A cable fixing assembly includes a cable fixing member and a cable holder for fixing an outer covering of the optical fiber cable introduced into said connector housing. The cable fixing member includes an opposing piece for slidably engaging with a guide section formed on the wall of an end cap of the connector housing. A step section is formed on the sliding surface of the opposing piece for sliding contact with the sliding surface of the guide section. The cable fixing member moves together with the optical fiber cable so as to reduce a distance between the splice means and the cable holder.

Method of assembling an optical connector and an optical connector

An optical fiber connector comprises an outer housing configured to mate with a receptacle and a collar body disposed in the outer housing. The collar body receives and secures a ferrule in a first portion of the collar body. The ferrule includes a central bore that defines an axis. The ferrule further includes a fiber stub disposed in a portion of the central bore, the fiber stub comprising a first optical fiber having a first end proximate to an end face of the ferrule and a prepared second end terminating within the ferrule. The collar body further includes a second portion that includes a housing portion to house a gripping device that grips a second optical fiber.

Remote grip optical fiber connector

A plug-type optical connector is provided with a ferrule and an aligning sleeve member. The aligning sleeve member receives a portion of the ferrule including an abutting end face inside a bore to prevent staining and damage and uses a movable shutter to prevent light emitted through the ferrule from leaking to the outside. The socket type optical connector is provided with a ferrule and a holding section. The optical connector is not provided with an aligning sleeve member and further can hold a coated optical fiber by a holding section behind the ferrule by a radius of curvature of at least a prescribed minimum radius of curvature. Optical loss in the coated optical fiber can be reduced while effectively reducing the external dimensions in the direction of extension of the ferrule at the time of use. An optical fiber connecting device that includes a combination of a pair of optical connectors is also provided to be suitably applied to an optical transmission line laid indoors.

Optical connector, optical fiber with connector, optical fiber connecting device, and optical fiber connection method

An optical connector for terminating an optical fiber comprises a housing configured to mate with a receptacle and a collar body disposed in the housing. The collar body includes a ferrule securely disposed in an opening of the collar body, the ferrule including a central bore that defines an axis, and a housing portion disposed in a generally central portion of the collar body. The housing portion includes an opening to receive a gripping device to grip an optical fiber. The ferrule is axially moveable independent of the axial movement of the optical fiber and gripping device. The optical connector can be thermally balanced over a temperature range of at least 100&#xb0; C.

The optical fiber connector includes a connector housing (), having a splice assembly () therein, and an end cap () attached to one end of the connector housing (), from which leads out a primary coating portion (). A boundary () between a portion of the primary coating portion (), obtained by removing an outer coating () of the inner cover () while leaving an inner coating (), and a portion obtained by leaving the outer coating () of the inner cover (), is located in the interior of the connector housing (). The end cap () is provided in the interior thereof with a tubular portion and an extension extending from an end of the tubular portion, the tubular portion including an insert hole for an insertion of the primary coating portion () approximately coaxially with a guiding hole formed in the splice assembly accommodated in the connector housing () for guiding the primary coating portion () leading out from the splice assembly. The extension includes a strain-control hole, communicating with the insert hole, for receiving said boundary () of the primary coating portion (), and for controlling stress at the boundary ().

Optical fiber connector

An optical connector and a method of assembling an optical connector that is capable of avoiding generation of unnecessary tension in the optical fiber cable in which plain fiber portions are optically connected to each other using a splice assembly. The optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable () onto an end of a fiber stub predisposed in the splice means to form an optical connection; and a cable fixing assembly (), that includes a cable fixing member () and a cable holder (), for fixing an outer covering () of the optical fiber cable () introduced into said connector housing (). The cable fixing member (), which includes an opposing piece () for slidably engaging with a guide section () formed on the wall of an end cap () of the connector housing (), is pressed in from the direction perpendicular to the axis of the optical fiber cable () and is mounted on the wall of the end cap (). A step section is formed on the sliding surface of the opposing piece () to be in sliding contact with the sliding surface of the guide section (), for moving the cable fixing member () together with the optical fiber cable () so as to reduce a distance between the splice means () and the cable holder ().

An optical fiber cleaving device includes an auxiliary support section movably disposed on a base section independently from a blade section and a pusher section. The auxiliary support section can be selectively disposed at the operable position for supporting an unsheathed optical fiber in cooperation with a pair of clamp sections. The auxiliary support section is constituted by a thin plate member having fiber support faces locally located between the clamp sections at the operable position and a relief area formed adjacent to the fiber support faces. The fiber support faces come in contact with the portions of a local length of the unsheathed optical fiber extending between the clamp sections, the local length being located away from the fiber cleaving position, and the relief area is so arranged as to avoid the contact with a portion of a second local length of the unsheathed optical fiber, located at the fiber cleaving position. The cleaving device can provide highly accurate cleaving for optical fibers having different fiber structures without changing the preset conditions for the clamp sections.

Device and method for cleaving optical fibers

A straight type optical connector enables a splicing operation of an optical fiber cable accurately and stably without requiring skilled labor and having a superior on-site installation property. An optical connector is provided with a splicing section for securely supporting an incorporated optical fiber securely supported at a ferrule and an optical fiber of an outside optical fiber cable in an end-abutting condition. The body of the optical connector is provided with a cable holding member able to hold an optical fiber cable. The cable holding member can be set at a temporary position where it makes an optical fiber of the optical fiber cable abut against the incorporated optical fiber at the splicing section in the state holding the optical fiber cable and bends a covered optical fiber of the optical fiber cable between the splicing section and the cable holding member by a pressing force in the lengthwise direction.

Optical connector and optical fiber connecting system

An angle type optical connector enables a splicing operation of an optical fiber cable accurately and stably without requiring skilled labor and having a superior on-site installation property. An optical connector is provided with a splicing section for securely supporting an incorporated optical fiber securely supported at a ferrule and an optical fiber of an outside optical fiber cable in an end-abutting condition. The body of the optical connector is provided with a cable holding member able to hold an optical fiber cable. The cable holding member can be set at a temporary position where it makes an optical fiber of the optical fiber cable abut against the incorporated optical fiber at the splicing section in the state holding the optical fiber cable and bends a covered optical fiber of the optical fiber cable between the splicing section and the cable holding member by a pressing force in the lengthwise direction.

An optical fiber splicing and gripping device includes a material having first and second members hingedly attached. A gripping region is formed in the material that includes first and second gripping portions disposed on first and second inner portions of each of the members. The material further includes separate first and second clamping zones along a length of the gripping region. The optical fiber splicing and gripping device further includes a cap engageable with the material to selectively actuate the first clamping zone independently of actuating the second clamping zone.

Fiber splicing and gripping device

A plug-type optical connectoris provided with a ferruleand an aligning sleeve member. The aligning sleeve memberreceives a portion of the ferruleincluding an abutting end faceinside a boreto prevent staining and damage and uses a movable shutterto prevent light emitted through the ferrulefrom leaking to the outside. The socket type optical connectoris provided with a ferruleand a holding section. The optical connectoris not provided with an aligning sleeve member and further can hold a coated optical fiber by a holding sectionbehind the ferruleby a radius of curvature of at least a prescribed minimum radius of curvature. Optical loss in the coated optical fiber can be reduced while effectively reducing the external dimensions in the direction of extension of the ferruleat the time of use. An optical fiber connecting device that includes a combination of a pair of optical connectors is also provided to be suitably applied to an optical transmission line laid indoors.

Growing community of inventors

Kanagawa, Japan

Takaya Yamauchi