Abstract: The present invention provides a lubricating oil composition capable of achieving a lubricating property, a thermal stability, an oxidation stability, an anti-discoloring property and an anti-varnishing performance with a higher level by compounding a phosphorus compound having a specific structure in a base oil, as well as a lubricating oil composition for internal combustion engines which is excellent in wear resistance, high-temperature detergency and base number retention property although it has a low phosphorus content, a low sulfur content and a low sulfated ash content.

Abstract: The present invention provides a lubricating oil composition capable of achieving a lubricating property, a thermal stability, an oxidation stability, an anti-discoloring property and an anti-varnishing performance with a higher level by compounding a phosphorus compound having a specific structure in a base oil, as well as a lubricating oil composition for internal combustion engines which is excellent in wear resistance, high-temperature detergency and base number retention property although it has a low phosphorus content, a low sulfur content and a low sulfated ash content.

Abstract: A multilayer ceramic electronic part includes first and second ceramic particles dispersed in internal electrodes which are interposed between ceramic layers, the first ceramic particles having an average particle diameter about or less than that of the conductive particles and second ceramic particles having such an average particle diameter that they extend both of the ceramic layers with one of the internal electrodes disposed therebetween. Further, a conductive paste for use in a multilayer ceramic electronic part includes the first ceramic powders having an average powder diameter about or less than that of the conductive particles and the second ceramic powders having a larger average powder diameter than that of the conductive particle.

Abstract: In a device driven by a small size electric motor incorporated in the device, a rotating shaft, namely, an output shaft of the electric motor is biased by a force in a direction diametrically crosswise to a line connecting N-pole and S-pole of the field magnet of the motor.Aperture of the bearing for receiving the output shaft of the motor in its cross section normal to the output shaft is preferred to have a profile composed of a semicircle at its half part opposite to the direction of biasing and the other half of the aperture at the same side of the direction of the biasing is formed into a triangle so as to have tapered two planes for receiving the output shaft.By virtue of this aperture configuration, output shaft of the motor is forcibly against the tapered surfaces so as to be kept stable free from any undesirable vibration and noise.