Abstract: A metal pipe having an outer diameter of 150 mm to 3,000 mm and a wall thickness of 2 mm to 50 mm, and a method for manufacturing the same. The method includes a pipe-end-portion expansion step of expanding pipe end portions that are located at both ends of a mother pipe and an internal pressure application step that is performed after the pipe-end-portion expansion step and in which the mother pipe is expanded by applying an internal pressure, p, to the entire interior of the mother pipe until the internal pressure, p (MPa), that corresponds to changes in an axial compression amount s (mm), the axial compression amount, s, representing an amount of compression in a pipe axial direction against pipe extreme ends which are the both ends of the mother pipe, becomes a preset maximum internal pressure pmax (MPa), and p and s satisfy a specified formula.

Abstract: A driving assistance apparatus configured to support a driving of a vehicle at a time of pulling out of the vehicle, the driving assistance apparatus including: a control section configured to determine a movement path from a parking space to a predetermined position of a road region, and run the vehicle along the movement path on a basis of surroundings information of the vehicle when pulling out the vehicle from the parking space to the road region, wherein the control section leaves an accelerator operation for the vehicle to a user while automatically controlling a steering operation for the vehicle at least in a section in the movement path, and switches from an automated driving mode to a manual driving mode in response to the steering operation that is performed by the user when the vehicle travels in the section.

Abstract: A TIG welding filler metal is provided that has a composition including, by mass %, C: 0.20 to 0.80%, Si: 0.15 to 0.90%, Mn: 15.0 to 30.0%, P: 0.030% or less, S: 0.030% or less, Cr: 6.0 to 15.0%, and N: 0.120% or less, the balance being Fe and incidental impurities. Where necessary, the filler metal may contain one or two selected from Ni and Mo, may further contain one, or two or more selected from V, Ti, and Nb, and may additionally contain one, or two or more selected from Cu, Al, Ca, and REM. This configuration reduces the occurrence of welding cracks during TIG welding, that is, realizes excellent hot crack resistance, and allows for easy production of a weld joint having high strength and excellent cryogenic impact toughness.

Abstract: A belt-type continuously variable transmission includes an actual gear ratio calculation unit for calculating an actual gear ratio based on the rotation speed of a drive pulley and the rotation speed of a driven pulley, a reference gear ratio calculation unit for calculating a reference gear ratio by modifying the actual gear ratio based on an input torque and a driven pulley hydraulic pressure, and a condition determination unit for, in a case where the target gear ratio is an overdrive gear ratio, determining that at least part of rings of a belt is missing when the reference gear ratio is greater than or equal to a predetermined gear ratio and a drive pulley hydraulic pressure is greater than or equal to a predetermined hydraulic pressure.

Abstract: A belt-type continuously variable transmission includes an actual gear ratio calculation unit for calculating an actual gear ratio based on the rotation speed of a drive pulley and the rotation speed of a driven pulley, a reference gear ratio calculation unit for calculating a reference gear ratio by modifying the actual gear ratio based on an input torque and a driven pulley hydraulic pressure, and a condition determination unit for, in a case where the target gear ratio is an overdrive gear ratio, determining that at least part of rings of a belt is missing when the reference gear ratio is greater than or equal to a predetermined gear ratio and a drive pulley hydraulic pressure is greater than or equal to a predetermined hydraulic pressure.

Abstract: To provide a further miniaturized and densified current detection device or a power conversion apparatus including the same. A current detection device or a power conversion apparatus according to the present invention includes: a plurality of conductors corresponding to currents of a plurality of phases; and a current sensor. The plurality of conductors is formed so as to have a conductor portion in which the currents flowing in the plurality of conductors, respectively, are substantially parallel. In a cross section in a direction perpendicular to a flow direction of the current of the conductor portion, the current sensor is arranged in a region sandwiched between the plurality of conductor portions, and outputs information on a current flowing in the conductor based on a combination of magnetic field vectors generated by the plurality of currents.

Abstract: To provide a further miniaturized and densified current detection device or a power conversion apparatus including the same. A current detection device or a power conversion apparatus according to the present invention includes: a plurality of conductors corresponding to currents of a plurality of phases; and a current sensor. The plurality of conductors is formed so as to have a conductor portion in which the currents flowing in the plurality of conductors, respectively, are substantially parallel. In a cross section in a direction perpendicular to a flow direction of the current of the conductor portion, the current sensor is arranged in a region sandwiched between the plurality of conductor portions, and outputs information on a current flowing in the conductor based on a combination of magnetic field vectors generated by the plurality of currents.

Abstract: A control device for a vehicle including an engine, a transmission, a connector/disconnector, and control means, wherein the transmission is configured to change a speed of rotation by drive force of the engine and output the rotation. The connector/disconnector is configured to connect/disconnect transmission of the drive force from the engine to the transmission. The control means controls the engine, the transmission, and the connector/disconnector. In the vehicle control device, in a case where the control means performs idle neutral control by controlling the connector/disconnector to a released state after making the engine return from an idle stop state, the control means makes a determination as to performance of the idle neutral control when it is determined that a rotational speed of the engine is stabilized.

Abstract: A diagnostic device capable of accurately diagnosing the soundness of a resolver circuit is provided. A shifter receives excitation signal and excitation signal; shifts the level of excitation signal, excitation signal, or both; and performs level shifting such that a period of time that starts with one of two times in which, in the vicinity of the peak value of excitation signal, excitation signal and excitation signal are at the same value and ends with the other of the two times is less than a prescribed threshold. A trigger generation circuit generates a trigger during said period of time. A control unit determines whether there is an abnormality in the resolver circuit on the basis of the trigger.

Abstract: A control device for a vehicle including an engine, a transmission, a connector/disconnector, and control means, wherein the transmission is configured to change a speed of rotation by chive force of the engine and output the rotation. The connector/disconnector is configured to connect/disconnect transmission of the chive force from the engine to the transmission. The control means controls the engine, the transmission, and the connector/disconnector. In the vehicle control device, in a case where the control means performs idle neutral control by controlling the connector/disconnector to a release side after making the engine return from an idle stop state, the control means makes a determination as to performance of the idle neutral control when it is determined that a rotational speed of the engine is stabilized.

Abstract: A diagnostic device capable of accurately diagnosing the soundness of a resolver circuit is provided. A shifter receives excitation signal and excitation signal; shifts the level of excitation signal, excitation signal, or both; and performs level shifting such that a period of time that starts with one of two times in which, in the vicinity of the peak value of excitation signal, excitation signal and excitation signal are at the same value and ends with the other of the two times is less than a prescribed threshold. A trigger generation circuit generates a trigger during said period of time. A control unit determines whether there is an abnormality in the resolver circuit on the basis of the trigger.

Abstract: There is provided a dielectric ceramic composition for high-frequency use represented by a composition formula of a(Sn,Ti)O2-bMg2SiO4-cMgTi2O5-dMgSiO3. In the composition formula, a, b, c and d (provided that a, b, c and d are mol %) are within the following ranges: 4?a?37, 34?b?92, 2?c?15 and 2?d?15, respectively, and a+b+c+d=100. The dielectric ceramic composition for high-frequency use has a relative permittivity ?r of 7.5-12.0, a Qm×fo value of not less than 50000 (GHz) and an absolute value of a temperature coefficient ?f of resonance frequency fo of not more than 30 ppm/° C.

Abstract: The present invention relates to a metal foil laminated polyimide resin substrate wherein a metal foil is directly laminated on one side or both sides of a polyimide resin substrate; and the surface of the metal foil to be bonded to the polyimide resin substrate has a surface roughness (Rzjis) of 3.0 ?m or less; a surface area ratio (B) of 1.25 to 2.50, in which the surface area ratio (B) is calculated as a ratio [A/6550] of a surface area of a two-dimensional region with a surface area of 6550 ?m2 which is determined by a laser method (three-dimensional area: A ?m2) to the area of the two-dimensional region; and a chromium content per unit area of the two-dimensional region of 2.0 mg/m2 or more.

Abstract: There is provided a dielectric ceramic composition for high-frequency use represented by a composition formula of a(Sn,Ti)O2-bMg2SiO4-cMgTi2O5-dMgSiO3. In the composition formula, a, b, c and d (provided that a, b, c and d are mol %) are within the following ranges: 4?a?37, 34?b?92, 2?c?15 and 2?d?15, respectively, and a+b+c+d=100. The dielectric ceramic composition for high-frequency use has a relative permittivity ?r of 7.5-12.0, a Qm×fo value of not less than 50000 (GHz) and an absolute value of a temperature coefficient ?f of resonance frequency fo of not more than 30 ppm/° C.

Abstract: The present invention relates to a metal foil laminated polyimide resin substrate wherein a metal foil is directly laminated on one side or both sides of a polyimide resin substrate; and the surface of the metal foil to be bonded to the polyimide resin substrate has a surface roughness (Rzjis) of 3.0 ?m or less; a surface area ratio (B) of 1.25 to 2.50, in which the surface area ratio (B) is calculated as a ratio [A/6550] of a surface area of a two-dimensional region with a surface area of 6550 ?m2 which is determined by a laser method (three-dimensional area: A ?m2) to the area of the two-dimensional region; and a chromium content per unit area of the two-dimensional region of 2.0 mg/m2 or more.

Abstract: A dielectric member comprising a laminated balun and a matching circuit, wherein the matching circuit is integrally mounted within the laminated balun. The matching circuit comprises a patterned conductive film formed on a surface of an existing dielectric substrate in the balun such that the balun is not increased in size.

Abstract: A balun section has: a first earth electrode 5 formed on a main surface of a dielectric substrate d; a second earth electrode 6 formed on a main surface of a dielectric substrate g; a first transmission line 1 which is formed on a main surface of a dielectric substrate e, one end of which is electrically connected to an unbalanced input/output terminal 15, and which has first and second portions 1-1 and 1-2; and second and third transmission lines 2 and 3 on a main surface of a dielectric substrate f, the second transmission line 2 being disposed so as to correspond to the first portion 1-1 of the first transmission line and having one end 10-1 thereof electrically connected to a first balanced input/output terminal 11, the third transmission line 3 being disposed so as to correspond to the second portion 1-2 of the first transmission line and having one end 10-2 thereof electrically connected to a second balanced input/output terminal 13.