Abstract: Provided is a semiconductor device in which a boundary region between a transistor portion and a diode portion includes: a first portion which is in contact with the transistor portion and is not provided with a lifetime adjustment region; and a second portion which is in contact with the diode portion and to which the lifetime adjustment region of the diode portion extends, a density distribution of a lifetime killer in a first direction has a lateral slope where a density of the lifetime killer decreases from the second portion of the boundary region toward the first portion, a width of the first portion is smaller than a width of the second portion in the first direction, and the width of the first portion is equal to or larger than a width of the lateral slope in the first direction.

Abstract: A television receiver is provided, which has a measurement section for measuring watching time in which a plurality of image signals inputted from a plurality of image input terminals are displayed as images, and a control section that stops image display of the image signals to be inputted when watching time read from the measurement section passes over watching-allowed time being previously stored. Thus, the plurality of image signals to be inputted are subjected to watching restriction.

Abstract: Two position detectors for a leading strip and two position detectors for the trailing strip are provided so as to be separated each other by a certain distance along each of the strips in a transferring direction of the strips to detect a deviation of a center line of each of the strips in a width direction of the strips with respect to a center line of a processing line. Two alignment devices for the leading strip and two alignment devices for the trailing strip, which are provided so as to be separated by a certain distance in the transferring direction, clamp each of the strips and adjust a position of each of the strips in the width direction in response to each of the detected deviations to align the center line of each of the strips with the center line of the processing line.

Abstract: A plurality of pistons are disposed in series in a circular electrode pressure cylinder and each of the pistons is separated. During low pressure output only one piston is used so that the friction force of the other pistons is not transmitted.

Abstract: An object of the present invention is to provide plate width center alignment method and apparatus for a welding machine, which can dispense with a detection driving device, which is simple in construction but can perform the detection from a position closest to a cutting-welding position, and which is high in plate width center alignment accuracy. Plate side edge detectors which are included in a plate width center alignment means for detecting plate widths of two cut plates and aligning plate width centers with each other, and which detect widthwise plate side edges of the two cut plates, are disposed on a movable frame provided with a cutting means and a welding means, elongated in the width direction of a web and movable in that direction.