Abstract: A dust core includes soft magnetic particles, a first coating layer, a second coating layer, and a third coating layer. The first coating layer is made of aluminum oxide with which at least a part of surfaces of the soft magnetic particles are coated. The second coating layer is made of aluminum nitride with which at least a part of a surface of the first coating layer is coated. The third coating layer is made of low-melting-point glass with which at least a part of a surface of the second coating layer is coated. The low-melting-point glass has a softening point lower than an annealing temperature of the soft magnetic particles.

Abstract: A computer-readable program product contains a program for a portable device, The program is executed upon a portable device comprising an acceleration sensor that detects accelerations in three axial directions and a calculation device. The program causes the calculation device to execute: a first process of detecting a stationary state of the portable device, and calculating tilt angles of the portable device; a second process of detecting the straight-ahead driving state of a vehicle to which the portable device is mounted, and calculating a rotational angle of the portable device with respect to a direction of progression of the vehicle; and a third process of converting the accelerations detected by the acceleration sensor to accelerations of the vehicle, on the basis of the tilt angles and the rotational angle.

Abstract: A method of diagnosing operating characteristics of a vehicle by a server device includes: obtaining operating characteristics information relative to the operating characteristics of the vehicle; and diagnosing the operating characteristics of the vehicle based upon feature information relative to a feature of a driver of the vehicle registered in advance in the server device and the operating characteristics information obtained from the vehicle.

Abstract: Provided is a method of annealing a metal member, including: disposing a first heater in an inner space of a hollow cylindrical metal member having an inner peripheral surface provided with plural teeth protruding toward a central direction, the first heater radiating infrared light and being disposed so as to extend parallel to a direction of a central axis of the metal member; heating the metal member from the inner space with the first heater; and gradually cooling the metal member after heating.

Abstract: A production method for a rotor for a permanent magnet-type rotary electric machine, includes the step (S01, S02) of forming a magnet piece that has a plurality of groove portions that are provided on at least one of end surfaces of the magnet piece in a predetermined direction, the step (S03) of stacking a plurality of formed magnet pieces so that adjacent magnet pieces contact each other and the plurality of groove portions of one of the adjacent magnet pieces cross with the plurality of groove portions of another one of the adjacent magnet pieces, and the step (S04) of inserting and disposing the plurality of stacked magnet pieces into a hole formed in a rotor core.

Abstract: A measuring pipe obtained by applying an insulating resin lining to the inside of a nonmagnetic pipe is employed. A through hole reaching the resin lining is made in the sidewall of the nonmagnetic pipe, and a signal electrode and a guard electrode are arranged in the through hole. The through hole is filled with an insulating vibration absorbing member so as to cover the periphery of the signal electrode and the guard electrode. A gelatinous substance of silicon resin, or the like, is employed as the vibration absorbing member, but liquid such as oil may be employed to liquid seal the signal electrode and the guard electrode in the through hole. Consequently, the electromagnetic flowmeter can be formed compact and its production is facilitated.

Abstract: A production method for a rotor for a permanent magnet-type rotary electric machine, includes the step (S01, S02) of forming a magnet piece that has a plurality of groove portions that are provided on at least one of end surfaces of the magnet piece in a predetermined direction, the step (S03) of stacking a plurality of formed magnet pieces so that adjacent magnet pieces contact each other and the plurality of groove portions of one of the adjacent magnet pieces cross with the plurality of groove portions of another one of the adjacent magnet pieces, and the step (S04) of inserting and disposing the plurality of stacked magnet pieces into a hole formed in a rotor core.

Abstract: A measuring pipe obtained by applying an insulating resin lining to the inside of a nonmagnetic pipe is employed. A through hole reaching the resin lining is made in the sidewall of the nonmagnetic pipe, and a signal electrode and a guard electrode are arranged in the through hole. The through hole is filled with an insulating vibration absorbing member so as to cover the periphery of the signal electrode and the guard electrode. A gelatinous substance of silicon resin, or the like, is employed as the vibration absorbing member, but liquid such as oil may be employed to liquid seal the signal electrode and the guard electrode in the through hole. Consequently, the electromagnetic flowmeter can be formed compact and its production is facilitated.

Abstract: The present invention relates to the measurement of gasoline volatility characteristics, and is directed in particular to the provision of an ultrasonic-type gasoline characteristic determination method and apparatus capable of determining the volatility characteristics with good accuracy by measuring the velocity of an ultrasonic wave in a gasoline containing alcohol or other additives and by compensating for deviations from a reference temperature, and a method for determining gasoline volatility characteristics by using an ultrasonic wave is provided, comprising the steps of transmitting an ultrasonic wave into a gasoline being measured, measuring the velocity of the ultrasonic wave in the gasoline, and determining the volatility characteristics of the gasoline from the velocity.

Abstract: The present invention relates to a sensor for detecting the degree of deterioration of oil, and more particularly, provides an oil deterioration sensor which can detect the deterioration of oil and/or the liquid surface of oil by utilizing the fact that the sound velocity of ultrasonic waves change according to the alkalinity of the oil, the oil deterioration sensor for determining deterioration characteristics of oil by utilizing ultrasonic waves, which is characterized in that a deterioration sensor reflecting surface for reflecting ultrasonic waves transmitted from an ultrasonic wave transmitting portion is placed in oil so as to detect deterioration of the oil, and characterized by comprising: an oil deterioration detecting portion for evaluating a transmission velocity of an ultrasonic wave in the oil by receiving ultrasonic waves from the aforesaid deterioration sensor reflecting surface and for evaluating a degree of deterioration of oil from said transmission velocity of the oil.

Abstract: The present invention relates to the measurement of gasoline volatility characteristics, and is directed in particular to the provision of an ultrasonic-type gasoline characteristic determination method and apparatus capable of determining the volatility characteristics with good accuracy by measuring the velocity of an ultrasonic wave in a gasoline containing alcohol or other additives and by compensating for deviations from a reference temperature, and a method for determining gasoline volatility characteristics by using an ultrasonic wave is provided, comprising the steps of transmitting an ultrasonic wave into a gasoline being measured, measuring the velocity of the ultrasonic wave in the gasoline, and determining the volatility characteristics of the gasoline from the velocity.

Abstract: A surface acoustic wave apparatus wherein a reflector for reflecting a surface acoustic wave is provided on both sides of at least one of an input interdigital transducer and an output interdigital transducer, or, on one side of one of the input interdigital transducer and the output interdigital transducer.

Abstract: A surface acoustic wave device characterized in that in addition to linear first bus-bar electrodes which connect in alignment the edges of the same potential electrodes of interdigital electrodes, second bus-bar electrodes are provided which connect the same potential electrodes in the vicinity of the overlapping positions. Also disclosed is a surface acoustic wave device characterized in that the metalized ratio g/p, which is the ratio of the width of an electrode and the intercentral distance between the adjacent electrodes in an irregular pitch electrode group, is varied between 0.1 to 0.4 or between 0.6 to 0.9.

Abstract: A group-type unidirectional surface acoustic wave filter composed of sending electrodes, reflecting electrodes and meander electrodes constituted by interdigital electrodes, respectively. As a phase shifter of the filter, a capacitive element is used. The geometrical configuration of the meander electrode is determined in accordance with geometrical phase difference. The filter enjoys low insertion loss with a simplified structure.

Abstract: In order to present an asymmetric frequency characteristic in an unidirectional acoustic surface wave device with a simple external phase shifter, a transducer formed on a substrate have three interaction areas (acoustic sources) defined by different three electrodes, first electrode being common, second electrode being connected to one end of the phase shifter, third electrode being connected to another end of the phase shifter, and distances between interaction areas being unequal to 2n (n:integer).

Abstract: An improved multiple roller spinning machine for spinning vehicle one-piece wheels is disclosed in which the roller holder is capable of sliding in a direction parallel with the axis of spinning and has a hydraulic cylinder which moves through its axially movable piston rod the holder horizontally thereby bringing the multiple rollers sequentially in to an operating position just above the wheel material clamped between the dies of the driving and driven spindles. Each of the multiple rollers is coupled to a control hydraulic cylinder which drives through its piston the respective roller vertically between a retracted position and a drawing position where the roller is pressed against the periphery of the wheel material.

Abstract: A device for preventing erroneous shutter release in an electronic release type camera having an automatic aperture control function, a bulb function and a self-timer function. The device includes an automatic aperture controlling switch which is turned on when an automatic aperture control photographing mode is selected, a bulb photographing switch which is turned on when a bulb photographing mode is selected, and a self-timer switch which is turned on when a self-timer photographing mode is selected. An erroneous operation detecting circuit produces a warning signal when the bulb photographing switch and the automatic aperture control switch are turned on simultaneously, or when the bulb photographing switch and the self-timer switch are turned on simultaneously. The warning signal is applied to prevent a release magnet control circuit from energizing an electromagnet which effects release of the shutter of the camera when the warning signal is present.