Abstract: There is provided a clutch release bearing in which a water resistance is enhanced. At a side axially opposite from one side where an outer ring rib of a clutch release bearing is formed, there is provided a first seal member externally fitted to an outer ring to be fixed thereto. A seal lip disposed in sliding contact with an outside-diameter surface of an inner ring is formed at a radially-inward distal end of the first seal member. An annular guide is provided at a bearing-outward side of the first seal member, and an axial lip which extends toward the outside of the bearing and extends to be disposed radially outwardly of the guide is formed at a bearing-outward side face of the first seal member. The axial lip is disposed in non-contact, close relation to the guide to form a labyrinth. A radially outwardly-open groove is formed in a joint portion of the axial lip joined to the first seal member.

Abstract: A supercharger includes a housing, and a turbine shaft supported in a center hole in the housing through rolling bearings. Lubricating oil for the rolling bearings exists only within the housing. A cooling water jacket is provided within a body portion of the housing over a region from one axial end portion of the body portion to the other axial end portion thereof.

Abstract: There is provided a clutch release bearing in which a water resistance is enhanced. At that a side axially opposite from one side where an outer ring rib of a clutch release bearing is formed, there is provided a first seal member externally fitted to an outer ring to be fixed thereto. A seal lip disposed in sliding contact with an outside-diameter surface of an inner ring is formed at a radially-inward distal end of the first seal member. An annular guide is provided at a bearing-outward side of the first seal member, and an axial lip which extends toward the outside of the bearing and extends to be disposed radially outwardly of the guide is formed at a bearing-outward side face of the first seal member. The axial lip is disposed in non-contact, close relation to the guide to form a labyrinth. A radially outwardly-open groove is formed in a joint portion of the axial lip joined to the first seal member.

Abstract: A supercharger includes a housing, and a turbine shaft supported in a center hole in the housing through rolling bearings. Lubricating oil for the rolling bearings exists only within the housing. A cooling water jacket is provided within a body portion of the housing over a region from one axial end portion of the body portion to the other axial end portion thereof.

Abstract: There are provided an inner ring having a first raceway at an outer periphery thereof, an outer ring having a second raceway at an inner periphery thereof, an intermediate ring which is interposed between these, and has a third raceway at an inner periphery thereof and also has a fourth raceway at an outer periphery thereof, first rolling elements interposed between the first raceway and the third raceway, and second rolling elements interposed between the fourth raceway and the second raceway. The intermediate ring includes a larger-diameter ring portion, and a smaller-diameter ring portion formed on the larger-diameter ring portion through an inclined ring portion. The third raceway is formed at a boundary portion between the larger-diameter ring portion and the inclined ring portion, and the fourth raceway is formed at a boundary portion between the smaller-diameter ring portion and the inclined ring portion.

Abstract: A semiconductor laser device 1 has, arranged inside an airtight-sealed package 2, a semiconductor laser element 3 having an active region made of one material selected from the group consisting of an AlGaAs-based crystal, an AlGaInP-based crystal, an AlGaN-based crystal, and an InGaN-based crystal. The atmospheric gas inside the package 2 contains oxygen. The semiconductor laser element 3 has a dielectric oxide film formed on the laser emission surface thereof. The atmospheric gas is a mixture of oxygen and nitrogen, with an oxygen content of 20% or more.

Abstract: A preliminary process for ejecting an ink after ejecting a processing liquid on a printing medium and a post-process for ejecting the processing liquid after ejecting the ink on the printing medium are distinguished. In one preferred mode, when a preliminarily process portion, in which an ink dot is formed after formation of a processing liquid dot, and a post-process portion, in which the processing liquid dot is formed after formation of the ink dot are present in admixing fashion, an ejection amount of the ink per unit area in the post-process portion is made smaller than the ejection amount of the ink per unit area in the preliminarily process portion. By this, a difference of printing quality in the preliminarily process portion and the post-process portion on the printing medium can be made smaller.

Abstract: Disclosed is a microphone that can be highly integrated and can be manufactured easily. A light emission element and a light-receiving element mounted on a substrate are sealed with transparent resin, a groove is formed in the sealed portion between the light emission element and the light-receiving element, an optically non-transparent substance is inserted in the groove, and the optically non-transparent substance is adhered to the groove with transparent resin. Thereby, in comparison to the conventional method of cutting the sealed portion together with the substrate, forming an optically non-transparent film on the cut surface, and reintegrating the cut areas, with the present invention, the number of the alignment processes is reduced and the extra margin for the setting process is no longer unnecessary.

Abstract: A microphone comprising a membrane and a vibration sensing section provided with an air flowing hole independently of the outer periphery of the vibration sensing section. The air flowing hole is conventionally provided continuously from the outer periphery of the vibration sensing section to the inside.

Abstract: Provided is a microphone with a stable output employing an aluminum membrane and having an air escape provided to the vibration detector. Specifically, the material used as the membrane frame material has a larger Young's modulus and a smaller thermal expansion coefficient than those of aluminum. Thereby, even if stress distribution or heat distribution is inflicted on the membrane frame, the slack or tension in the membrane will be reduced and the microphone output is stabilized.

Abstract: An optical microphone in which the difference between the sum of the thickness of a light emission element mounting substrate 3 and the height of a light emission element 1 and the sum of the thickness of a light-receiving element mounting substrate 4 and the height of a light-receiving element 2 is made smaller than the difference between the height of the light emission element 1 and the height of the light-receiving element 2. The optical path is thereby reduced, and the intensity of the light reaching the light-receiving element is increased, changes in the output of the light-receiving element caused by the vibration of the membrane film are increased, and the sensitivity of the microphone is increased. It is preferable that the sum of the thickness of the light emission element mounting substrate 3 and the height of the light emission element 1 and the sum of the thickness of a light-receiving element mounting substrate 4 and the height of the light-receiving element 2 are equal.

Abstract: A preliminary process for ejecting an ink after ejecting a processing liquid on a printing medium and a post-process for ejecting the processing liquid after ejecting the ink on the printing medium are distinguished. In one preferred mode, when a preliminarily process portion, in which an ink dot is formed after formation of a processing liquid dot, and a post-process portion, in which the processing liquid dot is formed after formation of the ink dot are present in admixing fashion, an ejection amount of the ink per unit area in the post-process portion is made smaller than the ejection amount of the ink per unit area in the preliminarily process portion. By this, a difference of printing quality in the preliminarily process portion and the post-process portion on the printing medium can be made smaller.

Abstract: An ink jet printing apparatus has a station for dyeing a thread for embroidering by discharging ink onto the thread from an ink jet head. According to one aspect of the invention, a printing controller controls the amount of ink discharged per unit time onto the thread according to the speed of relative movement of the thread and the ink jet head. Another aspect of the invention accounts for the length of non-usable thread per unit time between an ink jet printing unit and the tip of an embroidery needle in an embroidery machine.

Abstract: A printing head having a nozzle group for ejecting an ink and a nozzle group for ejecting a printing ability improving liquid is used, and printing control is made so that the number of scannings of the printing head is increased as a print duty increases, thereby reducing generation of mist due to rebounding of the ink or the printing ability improving liquid from a printing medium side.

Abstract: An information signal recording/reproducing apparatus includes a recording apparatus and a reproducing apparatus. The recording apparatus is arranged to record on a recording medium an information signal after angle-modulating the signal in such a way as to cause a signal corresponding to a timewise portion of the angle-modulated information signal to be in a given relation to a reference signal. The reproducing apparatus is arranged to angle-demodulate the angle-modulated information signal when it is reproduced from the recording medium, and to perform time base correction on the basis of the signal part of the angle-modulated information signal. Time base variations occurring during the reproduction can be accurately carried out by the arrangement without having any special signal added to the information signal during recording.