Abstract: Any one of the reversing portions of the flat cables is positioned in the sighting window when the inner case is in the neutral state. A prescribed mark is attached to the reversing portion which is positioned in the sighting window when the inner case is in the neutral state. Thus, it can be determined that the inner case is in the neutral state when the prescribed mark is attached to the reversing portion sighted through the sighting window.

Abstract: A copper alloy, having Sn 3.0 to 13.0 mass %, with the balance being Cu and unavoidable impurities, which copper alloy contains crystal grains whose diameter is 1.0 to 2.0 ?m, and wherein the copper alloy has a precipitate X having a diameter of 1 to 50 nm and a density of 106 to 1010 per mm2, and a precipitate Y having a diameter of 50 to 500 nm and a density of 104 to 108 per mm2; and a method of producing the copper alloy, including the steps of: cold-working the recrystallized structure with an average crystal grain diameter of 1 to 15 ?m at a working ratio of 40 to 70%; and heating the resultant to obtain a recrystallized structure with a crystal grain diameter of 1 to 2 ?m.

Abstract: A method of manufacturing an optical fiber preform by passing a porous glass preform through a heating area in an atmosphere of dehydration gas to dehydrate the porous glass preform is provided. Values Pcl and V are set and dehydration is performed to satisfy 0.0773×e7.4873×??Pcl×T×L/V according to ?, T, and L, where Pcl is a partial pressure of chlorine gas in the dehydration gas, T is a process temperature, L is a length of an area in the heating area where a temperature is 1150° C. or higher, V is a relative moving speed of the porous glass preform with respect to the heating area, and ? is an average bulk density of a porous glass layer.

Abstract: A III-V nitride semiconductor device includes an n-type layer of a III-V nitride semiconductor and an electrode formed on a surface of the n-type layer. A material of the electrode includes at least titanium, aluminum, and silicon.

Abstract: A terminal crimping structure onto aluminum electric-wire, for crimping a terminal onto an aluminum electric-wire including: an electrical conductor part comprising numerous strands; and a coating part coated on the . electrical conductor part; wherein the terminal has a wire barrel to be crimped onto the electrical conductor part of the aluminum electric-wire; and wherein the compressed ratio of the aluminum electric-wire's conductor part by the wire barrel is within a range of 50 to 70%, in terms of the ratio of (cross-sectional area of aluminum electric-wire's conductor part at crimped portion)/(cross-sectional area of aluminum electric-wire's conductor part before crimping).

Abstract: The invention aims to provide an optical information reader which can identify precisely, reliably, and with high sensitivity, even when the quantity or the wavelength of light from a measuring object from which optical information is to be read, extends over a wide range.

Abstract: The present invention provides a method for designing an optical pulse shaper including a first optical propagation line unit having a nonlinear medium and a dispersion medium concatenated, including: specifying design specifications of the first optical propagation line unit; and based on the design specification, calculating a quasi-periodic stationary pulse of which a waveform of an input optical pulse to the first optical propagation line unit is similar to a waveform of an output pulse from the first optical propagation line unit.

Abstract: A displacement sensor comprising: a detecting portion including a coil arranged in such manner that a relative position to a magnetic response substance varies in correspondence to a displacement of an object to be measured; an oscillating circuit to supply an alternating-current signal with a prescribed frequency to the detecting portion; an externally attached circuit connected to the detecting portion; and a displacement detecting means to detect the displacement of the object to be measured based on an amount of phase variation of an impedance in the detecting portion and the externally attached circuit, wherein parameters of the externally attached circuit are set in such manner that the amount of the phase variation by the displacement becomes larger than the amount of the phase variation by temperature variation.

Abstract: A manufacturing method of a glass strip, the method including a heating and drawing process of heating and softening a glass plate preform (1), drawing the glass plate preform to have a desired thickness and forming a glass strip (11), wherein at the heating and drawing process the glass plate preform (1) is drawn so that an internal pressure of a heating furnace (3) is kept positive relative to an atmospheric pressure and so that gas flows introduced to both surfaces of the glass plate preform (1) respectively are equal to each other within the heating furnace (3). It is possible to improve a surface roughness and obtain a desired surface roughness.

Abstract: When supplying electric power to a superconducting cable including a superconducting shield covering a superconductive conductor, a phase A of a current generated by a magnetic field leaking from the superconducting shield and a phase B of a current passing through the superconductive conductor are detected, and a phase difference between the phase A and the phase B is obtained so as to determine that a quench has occurred in the case where a difference between a reference phase difference and the obtained current phase difference exceeds a threshold.

Abstract: A data communication system comprising a terminal unit for generating light signals responsive to status of switches and a control unit for receiving the signals spatially propagated and controlling operation of a predetermined load, wherein switches 11 and 12 are interposed between plus and minus lines 51 and 52 as power lines for supplying electric power from the control unit to the terminal unit, and connected in series with respective resistors R1 and R2 having different values of resistance, and the minus line is grounded in the control unit 30 through resistor R0. Potential of the minus line changes in response to switches 11 and 12, and electronic signals indicative of the status of the switches are transmitted to the control unit separately from the light signals. Thus, even if the spatial propagation of the light signals is interrupted, the control over the operation of the load is secured.

Abstract: There is provided a communication control IC-incorporating connector characterized in that a communication control IC is incorporated in a housing; an equipment-side connecting portion for connecting the equipment-side lead of the IC to the male terminal of an equipment-side connector is provided in the interior on the front end side of the housing, and a bus wiring-side connecting portion for connecting the bus wiring-side lead of the IC to the electric wire of a bus wiring circuit is provided in the interior on the rear end side of the housing; and in the equipment-side connecting portion, a two-way female connecting terminal in which the equipment-side lead inserting portion of the IC and the male terminal inserting portion of the equipment-side connector are provided alternately is incorporated.

Abstract: A power supply apparatus includes a diode that is disposed in the path of a main current that is a subject of power control. The diode includes a substrate; a gallium-nitride buffer layer formed on the substrate; a gallium-nitride layer formed on the gallium-nitride buffer layer; and an n-type aluminum-gallium-nitride layer formed on the gallium-nitride layer.

Abstract: An optical fiber includes a core and a cladding which are made from silica glass, allows single mode transmission at a wavelength of 1100 nm, and has a mode field diameter of not less than 4 ?m at a wavelength of 1100 nm, and a bending loss of not more than 1 dB per turn with a curvature radius of 1 mm at a wavelength of 1100 nm.

Abstract: A test apparatus includes a test head including a plurality of test boards for applying a test pattern to a device under test, a main frame for controlling a test sequence by the test head, and a fibre optic cable unit including a plurality of flat cables for optically coupling the test head and the main frame, a plurality of fibre optic cables, a dam for coupling the fibre optic cable unit and the plurality of fibre optic cables, a circumferential difference absorption apparatus for absorbing the difference in circumferential length between the plurality of flat cables of the fibre optic cable unit, and a cable guide unit for bending and holding the fibre optic cables coupled to the test board of the main frame.

Abstract: A thin film deposition method for producing an optical film with an optical characteristic on a deposition substrate in a vacuum chamber is provided. The method may include preparing in the vacuum chamber a deposition source which is a source of the film producing material; holding the deposition substrate with a substrate holding member; arranging the deposition substrate and the deposition source such that, given that a vertical distance from the center of the deposition substrate to the deposition source is defined as ZK and a horizontal distance between the deposition substrate and the deposition source as Xk, Xk/Zk is set to satisfy a following equation 0.48?Xk/Zk?0.78; rotating the deposition substrate on a rotational axis which is orthogonal to the deposition substrate; and evaporating the film producing material of the deposition source to perform deposition on the deposition substrate.

Abstract: A concentric stranded conductor having a concentric strand having multiple bunched strands twisted together, in which each bunched strand has multiple single wires twisted together; wherein the concentric stranded conductor has a central core bunched strand (5) and a first-layer concentric strand (11) having multiple first-layer bunched strands (9) twisted together around the central core bunched strand (5); wherein a twist pitch of the central core bunched strand (5) is from 8 to 70 times an outer strands distance thereof, a twist pitch of the first-layer concentric strand (11) is from 8 to 30 times an outer strands distance thereof, a difference between a twist angle of the central core bunched strand (5) and a sum of twist angles of the first-layer bunched strands (9) and first-layer concentric strand (11) is 15 degrees or less, and each single wire is made of an aluminum or aluminum alloy, having elongation of 2% or more.

Abstract: A method for determining the deterioration of an accumulator battery, hooked up with loads in a system, based on the result of measuring internal resistances of an accumulator battery, the method including predetermining a temperature at which the deterioration of the accumulator battery is determined, calculating temperature correction coefficients, predetermining resistance-voltage conversion factors, measuring the internal resistances and temperature of the accumulator battery, converting the measured internal resistance values into the internal resistance values, converting the internal resistance values at the specified temperature into the terminal discharge voltage values and determining whether the accumulator battery is deteriorated or not by means of comparison of the terminal discharge voltage values.

Abstract: A composite antenna device comprising a plurality of antennas, the plurality of antennas having at least one particular antenna which differs in antenna characteristics, and at least either the particular antenna or at least one other antenna being of subassembly configuration.

Abstract: A Raman amplifier according to the present invention comprises a plurality of pumping means using semiconductor lasers of Fabry-Perot, DFB, or DBR type or MOPAs, and pumping lights outputted from the pumping means have different central wavelengths, and interval between the adjacent central wavelength is greater than 6 nm and smaller than 35 nm. An optical repeater according to the present invention comprises the above-mentioned Raman amplifier and adapted to compensate loss in an optical fiber transmission line by the Raman amplifier. In a Raman amplification method according to the present invention, the shorter the central wavelength of the pumping light the higher light power of said pumping light.