Abstract: A reinforcing sleeve for collectively reinforcing spliced portions of a plurality of optical fiber core wires disposed side by side includes a heat-shrinkable tube, a heat-meltable member, a tension member, and so on. The tension member and the heat-meltable member are inserted into the heat-shrinkable member. A thick portion is provided at a substantially center portion of a width direction of the heat-meltable member. Thus, on a cross section perpendicular to a longitudinal direction of the heat-meltable member, an amount of the heat-meltable member at proximity of the center portion of the width direction of the heat-meltable member is greater than an amount of the heat-meltable member at proximity of the end portions of the width direction of the heat-meltable member. This forms a flow of the heat-meltable member from the center portion toward the end portions in the width direction at the time of melting the heat-meltable member.

Abstract: An optical power transmission apparatus includes: a light emitting unit including a first optical gain generating means and a first light reflecting means; an optical fiber; a second light reflecting means; and a light receiving means. Further, the second light reflecting means is arranged nearer to the light receiving means than the optical fiber is, a first laser resonator is formed, between the first light reflecting means and the second light reflecting means, by optical connection between the first optical gain generating means and the optical fiber, and first laser light generated by the first laser resonator is configured to be incident on the light receiving means.

Abstract: This magnetic disk device is a 3.5-inch magnetic disk device equipped with magnetic disks formed from an aluminum alloy substrate. The magnetic disks arranged in a stacked manner have a thickness Td of 0.3 mm to 0.6 mm, the number N of magnetic disks involved is 10 to 16, and spacers disposed between the magnetic disks have an outside diameter 2 Rso of 35 mm to 65 mm. The outside diameter 2 Rso (mm) of the spacers satisfies 2 Rso??60 Td+70 and 2 Rso??0.5 N2?+16.5 N?73.

Abstract: Disclosed are: an adhesive composition including an epoxy resin (A), an epoxy resin curing agent (B), a polyurethane resin (C), and an inorganic filler (D), in which the polyurethane resin (C) has a storage elastic modulus at 25° C., in a dynamic viscoelastic analysis, of 8.0 MPa or higher, a proportion of the polyurethane resin (C) based on a total content of the epoxy resin (A) and the polyurethane resin (C) is from 2.0 to 50.0 mass %, and a maximum tensile stress in a stress-strain curve when a tensile strength is applied to a film adhesive formed using the adhesive composition is 7.0 MPa or higher; a film adhesive using the adhesive composition; a semiconductor package; and a producing method thereof.

Abstract: In an apparatus, a gas containing CH4 and CO2 is supplied from a first supply unit to a synthetic gas production unit which generates a synthetic gas containing CO and H2 while heating a first catalytic structure; the synthetic gas is supplied to a gas production unit which generates a lower olefin-containing gas including propylene while heating a second catalytic structure; and a detection unit detects propylene discharged from the gas production unit. The first catalytic structure includes first supports having a porous structure and a first metal fine particle that is present in first channels of the first supports. The second catalyst structure includes second supports having a porous structure and a second metal fine particle in the second supports. The second supports have a second channels, a portion of which have an average inner diameter of 0.95 nm or less.

Abstract: The purpose of the present invention is to provide a cable used to at least moor a moving body to be moored and supply power thereto, such that weight of the whole cable can be reduced. A cable according to the present invention connects a moving body to be moored to a unit assembly including a power supply unit. The cable is used to at least moor the moving body to be moored to the unit assembly and supply power from the power supply unit to the moving body to be moored. The cable includes a conductor constituted with element wires, and at least part of the element wires is a high-strength aluminum-based conductor.

Abstract: A method for controlling a wavelength of an optical module, includes: a laser light source unit emitting a laser beam; a wavelength filter having a periodical transmission characteristic with respect to a wavelength of light; a temperature controller on which the wavelength filter is placed and that adjusting a temperature of the wavelength filter; a heat generating body placed on the temperature controller; and a control device controlling the wavelength of the laser beam emitted from the laser light source unit and control the transmission characteristic of the wavelength filter based on an intensity of the laser beam transmitted through the wavelength filter, the method including changing at least one of a target value of the wavelength control of the laser beam and a target value of the control of the wavelength filter based on a current value of the heat generating body.

Abstract: A rotary connector apparatus includes a stator, a rotator, and an adjustment structure. The stator is configured to be attached to a vehicle body. The rotator is provided rotatably about a rotation axis with respect to the stator. The stator and the rotator define a cable housing space provided to surround the rotation axis. The adjustment structure is configured to allow the rotation axis to move with respect to the vehicle body in a state where the stator is attached to the vehicle body. The adjustment structure includes a coupling structure configured to couple the stator to the vehicle body. The coupling structure supports the stator movably with respect to the vehicle body to change an angle of the rotation axis with respect to the vehicle body in a state where the coupling structure couples the stator to the vehicle body.

Abstract: The present invention satisfies at least one of the condition of the degree of freedom of a primary layer 11 shown in the equation (I) and the condition of the rigidity of a secondary layer 12 shown in the equation (II). Thus, a coated optical fiber 1 capable of suppressing transmission loss in a low temperature environment is provided, in which, even when an optical fiber 10 having a large effective core cross-sectional area Aeff of the optical fiber 10 at a wavelength of 1550 nm and having high microbend sensitivity is used, transmission loss in a low temperature environment can be suppressed. [Math.

Abstract: A rotary connector device includes a fixed body, a rotation body, and a connector. The rotation body is rotatable about a rotation axis with respect to the fixed body. The connector includes a cover, a conductor, and a holding member. The cover includes a first wall and a space therein. The first wall extends from the rotation body in an axial direction substantially parallel to the rotation axis. The holding member is attached to the cover in the space and holds the conductor. The holding member includes, in the first wall, an exposed portion exposed to an outside of the space. The cover and the holding member include a restriction structure to restrict foreign matter from entering the space through the exposed portion. The restriction structure includes a first protrusion that protrudes in a direction substantially orthogonal to the first wall and a first recess in which the first protrusion is fitted.

Abstract: A catalyst structure includes a carrier having a porous structure composed of a zeolite type compound and at least one catalytic material existing in the carrier. The carrier has channels communicating with each other, and the catalytic material is a metal fine particle and exists at least in the channel of the carrier.

Abstract: A reflection filter device includes: a ring resonator filter including a ring-shaped waveguide and two arms, each of the two arms being optically coupled to the ring-shaped waveguide; and a dual-branch portion including a light input/output port and two branch ports, the light input/output port being configured to allow input and output of light, the two branch ports being configured to allow output of the light input from the light input/output port, the light being split into two, the two arms being connected to the two branch ports, respectively, at least one of the two arms being equipped with a phase adjuster.

Abstract: A resin formed body obtained from a resin composition that contains a polypropylene resin and a cellulose fiber, the polypropylene resin partially containing an acid modified polypropylene resin, wherein the resin formed body has a diffraction peak derived from a polypropylene ?-crystal (040) plane at a position of a scattering vector s of 1.92±0.1 nm?1, a diffraction peak derived from a polypropylene ?-crystal (300) plane at a position of a scattering vector s of 1.83±0.1 nm?1, and a diffraction peak derived from a cellulose I? type crystal (004) plane at a position of a scattering vector s of 3.86±0.1 nm?1, observed in a wide-angle X-ray diffraction measurement, and wherein an orientation degree of the cellulose fiber in the resin formed body is larger than 0.1 and less than 0.8.

Abstract: A waveguide based wavelength-tunable laser formed on a semiconductor substrate includes a first reflector from which laser light is output, a second reflector configuring a laser resonator together with the first reflector, a gain portion that is provided between the first reflector and the second reflector, at least two wavelength filters that can adjust wavelength characteristics and adjust a wavelength of the laser light, and a phase adjuster that adjusts an optical path length in the laser resonator, and a waveguide is formed to fold back an optical path by an angle of substantially 180 degrees between the first reflector and the second reflector.

Abstract: An optical module includes a box-shaped housing with an optical element mounted therein. Further, a wiring substrate is bonded to a part of a surface of a housing part of the housing, and an electric wiring, which is formed in the wiring substrate or on a surface of the wiring substrate, and an electric wiring, which is introduced into the housing part or onto a surface of the housing part, are electrically connected to each other.

Abstract: An optical fiber includes: a central core portion; an intermediate layer configured to surround an outer periphery of the central core portion; a trench layer configured to surround an outer periphery of the intermediate layer; and a cladding portion configured to surround an outer periphery of the trench layer. The central core portion is made of silica based glass that does not contain germanium (Ge). ?1>?2>?3 and ?Clad>?3, where ?1 represents an average maximum relative refractive-index difference of the central core portion relative to pure quartz glass, ?2 represents an average relative refractive-index difference of the intermediate layer relative to the pure quartz glass, ?3 represents an average relative refractive-index difference of the trench layer relative to the pure quartz glass, and ?Clad represents an average relative refractive-index difference of the cladding portion relative to the pure quartz glass. ?1 is equal to or larger than 0.05%.

Abstract: A rotary connector device includes a stator and a rotation body. The stator includes a first stator main body and a second stator main body. The rotation body is provided rotatably about a rotational axis with respect to the stator. The stator and the rotation body define a cable housing space between the stator and the rotation body. The second stator main body includes a first wall and a second wall. The first wall extends along an axial direction parallel to the rotational axis. The second wall extends along the axial direction and is spaced apart from the first wall in a radial direction perpendicular to the rotational axis. The first wall is disposed between the cable housing space and the second wall in the radial direction. The first stator main body includes an intermediate wall extending along the axial direction and disposed between the first wall and the second wall in the radial direction.

Abstract: A semiconductor-processing tape, for use in dividing an adhesive layer along semiconductor chips by expansion, having a base material film, a removable adhesive layer, and an adhesive layer, in this order, wherein the base material film has the stress values in MD and TD at the time of 5%-elongation of 5 MPa or, more, the tensile strength values in MD and TD at the time of 5%-elongation of 10 to 30 N/25 mm, and the thickness of from 70 to 150 ?m, and wherein the adhesive layer has a thickness of 40 ?m or more and the storage elastic modulus at 25° C. of 2000 MPa or less.

Abstract: Examples described herein relate to a molded article provided with a resin part formed with a polyolefin resin composite material, the polyolefin resin composite material containing a polyolefin resin and 10 to 150 parts by mass of cellulose based on 100 parts by mass of the polyolefin resin, wherein an area of an aggregate of the cellulose is less than 20,000 ?m2.

Abstract: An optical fiber includes: a core portion; a side core layer circumferentially surrounding the core portion; a cladding portion circumferentially surrounding the side core layer; and a coating layer circumferentially surrounding the cladding portion. When an average maximum relative refractive-index difference of the core portion to an average refractive index of the cladding portion is ?1, a relative refractive-index difference of an average refractive index of the side core layer to the average refractive index of the cladding portion is ?2, a relative refractive-index difference of the average refractive index of the cladding portion to pure silica glass is ?Clad, ?1 >?Clad>?2 and 0>?2 hold, the ?1 is 0.18% or more and 0.24% or less, the ?2 is ?0.27% or more and ?0.12% or less, and (?1??2) is 0.36% or more and 0.45% or less.