Abstract: A wedge device for use with a fiber optic connector comprises an insert body comprising a light transmissive material. The insert body defines a wedge portion integrally extending into a light pass structure, the light pass structure terminating in a single upper face distal from the wedge portion. For example, wedge device may be a unitary member formed entirely of the light transmissive material.

Abstract: A connector assembly for a fiber optic cable comprises a multi-part inner housing adapted to support an optical fiber splice connection structure. A cable clamp is located at a proximal end of the inner housing and is adapted to engage an outer sheath of a fiber optic cable. Preferably, the cable clamp is rotatable with respect to the inner housing.

Abstract: The present invention is related to a method of assembling a transition assembly and a transition assembly. The method described herein may comprise stripping a plurality of fibers at an end of a cable; splicing the plurality of fibers from the cable with a plurality of pigtails; and protecting the bare fiber with a cover. The transition assembly may comprise a fiber protection part and a cover that covers the fiber protection part. The fiber protection part may have openings.

Abstract: It is an object of the present invention to provide a novel primer for use in pretreatment steps in electroless plating which is environmentally friendly, by which process is easy with fewer steps, and which can realize cost reduction. A primer for forming a metal plating film on a base material by electroless plating, the primer including: a hyperbranched polymer having an ammonium group at a molecular terminal and a weight-average molecular weight of 500 to 5,000,000; a metal fine particle; and an alkoxysilane.

Abstract: The present invention is related to a method of assembling a transition assembly and a transition assembly. The method described herein may comprise stripping a plurality of fibers at an end of a cable; splicing the plurality of fibers from the cable with a plurality of pigtails; and protecting the bare fiber with a cover. The transition assembly may comprise a fiber protection part and a cover that covers the fiber protection part. The fiber protection part may have openings.

Abstract: Disclosed is a carbon nano-tube dispersant comprising a highly branched polymer having a repeating unit represented by, for example, formula (12) or (13), wherein the highly branched polymer is produced by the polycondensation of a triarylamine compound and an aldehyde compound and/or a ketone compound in the presence of an acid catalyst. The carbon nano-tube dispersant enables the dispersion of CNTs in a medium such as an organic solvent until the CNTs are so decomposed as to have an individual size. (In the formula, Z1 and Z2 independently represent a hydrogen atom, a phenyl group, a thienyl group, or the like.

Abstract: There is provided a resist underlayer film having heat resistance that is used for a lithography process in the production of semiconductor devices, and a high refractive index film having transparency that is used for an electronic device. A polymer comprising a unit structure of Formula (1): wherein each of R1, R2, R3, and R5 may be a hydrogen atom, R4 may be phenyl group or naphthyl group. A resist underlayer film forming composition comprising the polymer, and a resist underlayer film formed from the composition. A high refractive index film forming composition comprising the polymer, and a high refractive index film formed from the composition.

Abstract: A highly branched polymer comprising repeating units which each have an acid group such as sulfo group, said repeating units being represented by formula [1] or the like, and a dispersant for carbon nanotubes (CNTs) which comprises the highly branched polymer can disperse CNTs in a medium such as an organic solvent to the individual sizes and can yield thin films having improved conductivity. In formula [1], any one of A1 to A5 is a sulfo group, and the others are each a hydrogen atom.

Abstract: There is provided a resist underlayer film having heat resistance that is used for a lithography process in the production of semiconductor devices, and a high refractive index film having transparency that is used for an electronic device. A polymer comprising a unit structure of Formula (1): wherein each of R1, R2, R3, and R5 may be a hydrogen atom, R4 may be phenyl group or naphthyl group. A resist underlayer film forming composition comprising the polymer, and a resist underlayer film formed from the composition. A high refractive index film forming composition comprising the polymer, and a high refractive index film formed from the composition.

Abstract: An optical connector that is assembled onto a terminal of an optical fiber cable including tension bodies. The optical connector includes a housing, a ferrule that is provided in the housing, and a fixing cap that is mounted on the housing. The housing includes a fixing portion of which an outer peripheral surface is provided with a screw portion. While the tension bodies leading from the terminal of the optical fiber cable are interposed between the housing and the fixing cap, the fixing cap is screwed onto and fixed to the fixing portion.

Abstract: A method of butting and connecting a first optical fiber and a second optical fiber in an optical connector comprises placing said optical connector that holds said first optical fiber in wherein an optical fiber connection tool; mounting said optical fiber holder on a holder mounting base of a front end bevel processing tool; processing a front end face of said second optical fiber such that said front end face of said second optical fiber is beveled relative to the surface perpendicular to the optical fiber axis direction; transferring said optical fiber holder to said holder support base; and moving said optical fiber holder toward said optical connector along said guide part, and butting and connecting the beveled front end face of said second optical fiber to the front end face of said first optical fiber such that their bevel directions are aligned.

Abstract: There is provided a polymer compound having excellent transparency and excellent heat resistance, a high refractive index, an excellent solubility in various solvents, and a low viscosity and excellent handling properties when the polymer compound is dissolved in a solvent; and a production method of the polymer compound; and a polymer composition containing the polymer compound. And there is also included an aroylbiphenyl compound of Formula (1): [in Formula (1), X is a halogen atom, and R1 is a hydrogen atom or a group of Formula (2a) or Formula (2b); and in Formula (2a) and Formula (2b), R2 and R3 are independently a hydrogen atom or a C1-6 alkyl group]; a polymer compound obtained by using the aroylbiphenyl compound; and a thermocurable film forming polymer composition comprising: as a component (A), the polymer compound, and as a component (B), a crosslinkable compound.

Abstract: An optical connector of the present invention includes a ferrule to which an internal optical fiber is embedded and an end face grinding is performed; and a connection mechanism which extends to an opposite side of a connection end face of the ferrule, wherein the optical connector butt connects the internal optical fiber and an insert optical fiber which is inserted from outside within a positioning groove provided at the connection mechanism; and a back end side of an end face of the internal optical fiber which butts to the insert optical fiber is made a beveled end face by cutting process.

Abstract: An optical connector that is assembled at the terminal of an optical fiber cable that integrates an optical fiber and a tension-resisting member extending in the longitudinal direction of the optical fiber, the optical connector including: a connector body having a stationary portion at the rear end thereof, the stationary portion having a threaded portion formed on the outer periphery surface, and a fixing cap that is screwed onto the threaded portion of the stationary portion, wherein the fixing cap fixes the tension-resisting member that has been drawn out from the optical fiber cable terminal by sandwiching the tension-resisting member between the fixing cap and the connector body when the fixing cap is screwed onto the stationary portion.

Abstract: Disclosed is a carbon nano-tube dispersant comprising a highly branched polymer having a repeating unit represented by, for example, formula (12) or (13), wherein the highly branched polymer is produced by the polycondensation of a triarylamine compound and an aldehyde compound and/or a ketone compound in the presence of an acid catalyst. The carbon nano-tube dispersant enables the dispersion of CNTs in a medium such as an organic solvent until the CNTs are so decomposed as to have an individual size. (In the formula, Z1 and Z2 independently represent a hydrogen atom, a phenyl group, a thienyl group, or the like.

Abstract: Provided is a method for confirming optical fibers connection in a connection part in an optical connector, including: allowing light to pass through a first optical fiber and allowing cladding mode light to disappear; and detecting a difference in light intensity in the connection part between before and after the light from the first optical fiber enters a second optical fiber disposed in the optical connector.

Abstract: There is provided a resist underlayer film having heat resistance that is used for a lithography process in the production of semiconductor devices, and a high refractive index film having transparency that is used for an electronic device. A polymer comprising a unit structure of Formula (1): wherein each of R1, R2, R3, and R5 may be a hydrogen atom, R4 may be phenyl group or naphthyl group. A resist underlayer film forming composition comprising the polymer, and a resist underlayer film formed from the composition. A high refractive index film forming composition comprising the polymer, and a high refractive index film formed from the composition.

Abstract: Provided is a method for confirming optical fibers connection in a connection part in an optical connector, including: allowing light to pass through a first optical fiber and allowing cladding mode light to disappear; and detecting a difference in light intensity in the connection part between before and after the light from the first optical fiber enters a second optical fiber disposed in the optical connector.

Abstract: An optical connector that is assembled at the terminal of an optical fiber cable that integrates an optical fiber and a tension-resisting member extending in the longitudinal direction of the optical fiber, the optical connector including: a connector body having a stationary portion at the rear end thereof, the stationary portion having a threaded portion formed on the outer periphery surface, and a fixing cap that is screwed onto the threaded portion of the stationary portion, wherein the fixing cap fixes the tension-resisting member that has been drawn out from the optical fiber cable terminal by sandwiching the tension-resisting member between the fixing cap and the connector body when the fixing cap is screwed onto the stationary portion.

Abstract: An optical connector of the present invention includes a ferrule to which an internal optical fiber is embedded and an end face grinding is performed; and a connection mechanism which extends to an opposite side of a connection end face of the ferrule, wherein the optical connector butt connects the internal optical fiber and an insert optical fiber which is inserted from outside within a positioning groove provided at the connection mechanism; and a back end side of an end face of the internal optical fiber which butts to the insert optical fiber is made a beveled end face by cutting process.