Abstract: A three-level power converter includes a direct current power supply unit including a filter capacitor connected between a high potential line and an intermediate potential line and a filter capacitor connected between the intermediate potential line and a low potential line, and a power conversion circuit that converts a three-level direct current voltage output from the high potential line, the intermediate potential line, and the low potential line into a three-phase alternating current voltage. A controller generates an imbalance signal representing an imbalance between a first capacitor voltage and a second capacitor voltage on the basis of values detected by voltage sensors, and generates a modulation signal for causing the power conversion circuit to perform a two-phase modulation operation on the basis of a superimposed signal obtained by superimposing the imbalance signal on a reference signal of the three-phase alternating current voltage.

Abstract: An inkjet printing method forming a decorative printed layer having a three-dimensional texture on a printing surface is described. The inkjet printing method includes: printing dots of curable ink that cure under a predetermined condition based on dot pattern data indicative of printed positions of the dots to be printed on the printing surface; and curing the printed dots. The dot pattern data indicates that: a distance between the adjacent dots becomes a distance where the adjacent dots before the curing are allowed to be maintained independently without bonding to one another in a first region; and the distance between the adjacent dots becomes a distance where the adjacent dots before the curing bond to one another in a second region different from the first region. Such a method may allow forming a decorative printed layer having a three-dimensional texture with a desired gloss level.

Abstract: An adhesive sheet of an embodiment of the present disclosure is an adhesive sheet including: a rigid resin film having a thickness of 80 micrometers to 500 micrometers, and a first pressure sensitive adhesive layer being disposed on or above a surface of the rigid resin film, wherein the first pressure sensitive adhesive layer includes elastic resin microspheres having a volume average particle diameter of 110 micrometers or greater and a tacky binder, and the first pressure sensitive adhesive layer has an uneven surface due to the presence of the microspheres.

Abstract: To reduce the error in a rotational angle detected by a rotational angle detection apparatus, provided is a rotational angle detection apparatus that detects a rotational angle of a magnetic field generation source, including a magnetic field detection apparatus that detects magnetic field components in at least two directions, and outputs resulting detection data; a correction value calculating section that calculates correction values for correcting an angle error of the rotational angle, based on a steady-state error that does not depend on rotation of the magnetic field generation source; and an angle computing section that calculates the rotational angle of the magnetic field generation source based on the detection data and the correction values, and outputs an angle signal indicating the rotational angle.

Abstract: Provided is a rotation angle detection device configured to detect a rotation angle of a magnetic field generation source, based on a magnetic field in at least two directions detected by a magnetic field detection device. The rotation angle detection device includes a correction value calculation unit configured to calculate a correction value of the rotation angle; an angle output unit configured to output an angle output signal indicative of the rotation angle of the magnetic field generation source, based on a magnetic field detection signal to be output from the magnetic field detection device and the correction value; and a filter unit capable of selecting a first filter characteristic, which is to be used for outputting the angle output signal, and a second filter characteristic, which is to be used for calculating the correction value and is different from the first filter characteristic.

Abstract: A rotation angle sensor includes first and second magnetic detection elements disposed at positions where a first disposition angle relative to a magnet center is greater than 0 degrees and less than 90 degrees and configured to acquire magnetic field in a first direction varying by a rotation of a magnet; third and fourth magnetic detection elements configured to acquire the magnetic field in a second direction; a calculation signal generator configured to output a first magnetic field calculation signal, based on outputs of the first and second magnetic detection elements, and configured to output a second magnetic field calculation signal, based on outputs of the third and fourth magnetic detection elements; and an angle signal generator configured to generate and output an angle signal indicative of a rotation angle of the magnet, based on the first and second magnetic field calculation signal.

Abstract: An adhesive sheet of an embodiment of the present disclosure is an adhesive sheet including: a rigid resin film having a thickness of 80 micrometers to 500 micrometers, and a first pressure sensitive adhesive layer being disposed on or above a surface of the rigid resin film, wherein the first pressure sensitive adhesive layer includes elastic resin microspheres having a volume average particle diameter of 110 micrometers or greater and a tacky binder, and the first pressure sensitive adhesive layer has an uneven surface due to the presence of the microspheres.

Abstract: A rotation angle sensor includes first and second magnetic detection elements disposed at positions where a first disposition angle relative to a magnet center is greater than 0 degrees and less than 90 degrees and configured to acquire magnetic field in a first direction varying by a rotation of a magnet; third and fourth magnetic detection elements configured to acquire the magnetic field in a second direction; a calculation signal generator configured to output a first magnetic field calculation signal, based on outputs of the first and second magnetic detection elements, and configured to output a second magnetic field calculation signal, based on outputs of the third and fourth magnetic detection elements; and an angle signal generator configured to generate and output an angle signal indicative of a rotation angle of the magnet, based on the first and second magnetic field calculation signal.

Abstract: Provided is a rotation angle detection device configured to detect a rotation angle of a magnetic field generation source, based on a magnetic field in at least two directions detected by a magnetic field detection device. The rotation angle detection device includes a correction value calculation unit configured to calculate a correction value of the rotation angle; an angle output unit configured to output an angle output signal indicative of the rotation angle of the magnetic field generation source, based on a magnetic field detection signal to be output from the magnetic field detection device and the correction value; and a filter unit capable of selecting a first filter characteristic, which is to be used for outputting the angle output signal, and a second filter characteristic, which is to be used for calculating the correction value and is different from the first filter characteristic.

Abstract: To reduce the error in a rotational angle detected by a rotational angle detection apparatus, provided is a rotational angle detection apparatus that detects a rotational angle of a magnetic field generation source, including a magnetic field detection apparatus that detects magnetic field components in at least two directions, and outputs resulting detection data; a correction value calculating section that calculates correction values for correcting an angle error of the rotational angle, based on a steady-state error that does not depend on rotation of the magnetic field generation source; and an angle computing section that calculates the rotational angle of the magnetic field generation source based on the detection data and the correction values, and outputs an angle signal indicating the rotational angle.

Abstract: To provide a decorative sheet which has anti-skid properties, is resistant to abrasion, exhibits high abrasion resistance even when bonded to a floor or road surface over which pedestrians or vehicles traverse, does not cause pedestrians or vehicles to skid, and does not suffer from damage or peeling. [Resolution Means] A decorative sheet having a first bead coat layer comprising a resin and particles having a median diameter of from 20 ?m to 60 ?m, a second bead coat layer which is coated on the first bead coat layer and which includes a resin and particles having a median diameter of from 20 ?m to 60 ?m, a design layer and an adhesive layer.

Abstract: A semiconductor device includes: a heat spreader; a semiconductor element on the heat spreader; and a connection member arranged between the heat spreader and the semiconductor element. The heat spreader is arranged in an order of the first heat spreader, the second heat spreader and the first heat spreader in one direction of a plane of the heat spreader. Each of the first and second heat spreaders includes multiple anisotropic heat conductive planes having a high heat conductivity. The anisotropic heat conductive plane of the first heat spreader is in parallel to both a stacking direction and a first direction perpendicular to the stacking direction. The anisotropic heat conductive plane of the second heat spreader is in parallel to both the stacking direction and a second direction perpendicular to the stacking direction. A projection region of the semiconductor element overlaps with the second heat spreader.

Abstract: A semiconductor device includes: a heat spreader; a semiconductor element on the heat spreader; and a connection member arranged between the heat spreader and the semiconductor element. The heat spreader is arranged in an order of the first heat spreader, the second heat spreader and the first heat spreader in one direction of a plane of the heat spreader. Each of the first and second heat spreaders includes multiple anisotropic heat conductive planes having a high heat conductivity. The anisotropic heat conductive plane of the first heat spreader is in parallel to both a stacking direction and a first direction perpendicular to the stacking direction. The anisotropic heat conductive plane of the second heat spreader is in parallel to both the stacking direction and a second direction perpendicular to the stacking direction. A projection region of the semiconductor element overlaps with the second heat spreader.

Abstract: The present invention relates to a magnetism detection device. First and second switch units switch a direction of a current flown from a bias generating unit across two opposite terminals of four terminals of a hall sensor, and switch a direction of a voltage to be available in remaining two opposite terminals in the direction orthogonal to the direction of the current, respectively, so that in a first period, a polarity of a hall electromotive force is a first polarity and a polarity of the hall offset voltage alternates four times, and in a second period, the polarity of the hall electromotive force is a second polarity opposite to the first polarity and the polarity of the hall offset voltage alternates four times.

Abstract: To provide a decorative sheet which has anti-skid properties, is resistant to abrasion, exhibits high abrasion resistance even when bonded to a floor or road surface over which pedestrians or vehicles traverse, does not cause pedestrians or vehicles to skid, and does not suffer from damage or peeling. [Resolution Means] A decorative sheet having a first bead coat layer comprising a resin and particles having a median diameter of from 20 ?m to 60 ?m, a second bead coat layer which is coated on the first bead coat layer and which includes a resin and particles having a median diameter of from 20 ?m to 60 ?m, a design layer and an adhesive layer.

Abstract: The present invention relates to a magnetism detection device. First and second switch units switch a direction of a current flown from a bias generating unit across two opposite terminals of four terminals of a hall sensor, and switch a direction of a voltage to be available in remaining two opposite terminals in the direction orthogonal to the direction of the current, respectively, so that in a first period, a polarity of a hall electromotive force is a first polarity and a polarity of the hall offset voltage alternates four times, and in a second period, the polarity of the hall electromotive force is a second polarity opposite to the first polarity and the polarity of the hall offset voltage alternates four times.

Abstract: Rear wheel tires of a vehicle body are spaced apart from each other in the vehicle width direction. A foreign object removing device is provided between an outer tire and an inner tire of the rear wheels on one side of the vehicle for removing foreign objects between the tires. The foreign object removing device includes a bar-shaped member inserted in a suspended state between the tires, and a shoe provided in a lower end side of the bar-shaped member to collide with foreign objects such as earth and sand, and stones getting in between the tires for flicking out the foreign objects from between the tires. The shoe is replaceably attached to the lower end side of the bar-shaped member by using a bolt. In a case where the shoe wears down, only the shoe is replaced.

Abstract: A method for manufacturing a semiconductor device including a semiconductor substrate composed of silicon carbide, an upper surface electrode which contacts an upper surface of the substrate, and a lower surface electrode which contacts a lower surface of the substrate, the method including steps of: (a) forming an upper surface structure on the upper surface side of the substrate, and (b) forming a lower surface structure on the lower surface side of the substrate. The step (a) comprises steps of: (a1) depositing an upper surface electrode material layer on the upper surface of the substrate, the upper surface electrode material layer being a raw material layer of the upper surface electrode, and (a2) annealing the upper surface electrode material layer.

Abstract: A SiC semiconductor device having a Schottky barrier diode includes: a substrate made of SiC and having a first conductive type, wherein the substrate includes a main surface and a rear surface; a drift layer made of SiC and having the first conductive type, wherein the drift layer is disposed on the main surface of the substrate and has an impurity concentration lower than the substrate; a Schottky electrode disposed on the drift layer and has a Schottky contact with a surface of the drift layer; and an ohmic electrode disposed on the rear surface of the substrate. The Schottky electrode directly contacts the drift layer in such a manner that a lattice of the Schottky electrode is matched with a lattice of the drift layer.

Abstract: A silicon carbide semiconductor device with a Schottky barrier diode includes a first conductivity type silicon carbide substrate, a first conductivity type silicon carbide drift layer on a first surface of the substrate, a Schottky electrode forming a Schottky contact with the drift layer, and an ohmic electrode on a second surface of the substrate. The Schottky electrode includes an oxide layer in direct contact with the drift layer. The oxide layer is made of an oxide of molybdenum, titanium, nickel, or an alloy of at least two of these elements.