Abstract: According to one embodiment, a semiconductor device includes: a stacked body including an insulating layer, and a conductive layer containing molybdenum; an aluminum oxide layer provided between the insulating layer and the conductive layer; and a protective layer in contact with the aluminum oxide layer, containing one of carbon, nitrogen, or sulfur bonded to aluminum in the aluminum oxide layer, and also in contact with the conductive layer.

Abstract: Larger pre-tension is applied to each link such that residual compressive stress is larger at the portion of the link facing the inside of a chain than the outside. Assuming that for each of the links in a state that pre-tension is not applied, a predetermined pitch is P, a first inclination angle of a fixing portion of the front inserting portion with respect to a chain proceeding direction is ?, and a second inclination angle of a fixing portion of the rear inserting portion with respect to a chain proceeding direction is ?, when the pre-tension is applied to each of the links, the pitch changes into P+?P, the first inclination angle changes into ???? and the second inclination angle changes into ?+?? where ?P>0, ??>0, and ??>0.

Abstract: Larger pre-tension is applied to each link such that residual compressive stress is larger at the portion of the link facing the inside of a chain than the outside. Assuming that for each of the links in a state that pre-tension is not applied, a predetermined pitch is P, a first inclination angle of a fixing portion of the front inserting portion with respect to a chain proceeding direction is ?, and a second inclination angle of a fixing portion of the rear inserting portion with respect to a chain proceeding direction is ?, when the pre-tension is applied to each of the links, the pitch changes into P+?P, the first inclination angle changes into ???? and the second inclination angle changes into ?+?? where ?P>0, ??>0, and ??>0.

Abstract: Each of resin cage (4) is injection-molded of a mixture material containing a thermoplastic resin selected as a material excellent in outgassing characteristic, a proper amount of reinforcing fiber, and a proper amount of a lubricating component. A lubricating film (10) made of a fluorine-containing polymer having a functional group is deposited on at least rolling surfaces and/or sliding surfaces of constituent members (inner and outer races (1 and 2), rolling elements (3) and cage 4) of a bearing. That is, the lubricating film (10) makes lubricity good at an early stage of rotation, so that incipient abrasion of the cage (4) can be suppressed. Hence, stabilization of operation with the passage of time can be exhibited on the basis of synergistic action of the lubricating film (10) and micro wear powder generated from the cage (4).

Abstract: A rolling bearing comprises an inner ring, an outer ring concentric with the inner ring, a plurality of rolling elements interposed between the inner ring and the outer ring, and a cage having pockets each accommodating the rolling elements one each. The cage comprises base material made of thermoplastic resin. Reinforced fiber and solid lubricant are mixed into the base material. The solid lubricant includes three materials, i.e., polytetrafluoroethylene, molybdenum disulfide and graphite.

Abstract: On an optical device, a metal mask is formed in the shape of a dot array, and then reactive ion etching is performed. The etching is continued while the diameter of the metal mask gradually becomes smaller until the area of the metal reduces to a predetermined area.

Abstract: Each of resin cage (4) is injection-molded of a mixture material containing a thermoplastic resin selected as a material excellent in outgassing characteristic, a proper amount of reinforcing fiber, and a proper amount of a lubricating component. A lubricating film (10) made of a fluorine-containing polymer having a functional group is deposited on at least rolling surfaces and/or sliding surfaces of constituent members (inner and outer races (1 and 2), rolling elements (3) and cage 4) of a bearing. That is, the lubricating film (10) makes lubricity good at an early stage of rotation, so that incipient abrasion of the cage (4) can be suppressed. Hence, stabilization of operation with the passage of time can be exhibited on the basis of synergistic action of the lubricating film (10) and micro wear powder generated from the cage (4).

Abstract: A rolling bearing is used for supporting a rocking mechanism or a rotating mechanism, and a film comprising a fluorine-containing polymer having a functional group(s) under a fluidizied state or a film comprising a fluorine-containing polyurethane compound under a solid state is formed on at least the track surface of the rolling bearing. Since this film does not contain ions for uniformly dispersing a thickner having non uniform particle sizes such as fluorine based grease of the prior art, breakage of the film between a rolling element and a race is not likely to occur, and wear of a rolling element race resulting from the direct contact between them due to breakage of the film can be reduced. When this film is tha same kind of a film as a protective film of the surface of an information recording disk, dust generating components of the film are the same kind of components as those of the protective film, and information recording/reproduction of the information recording disk is not impeded.

Abstract: A rolling bearing comprises an inner ring, an outer ring concentric with the inner ring, a plurality of rolling elements interposed between the inner ring and the outer ring, and a cage having pockets each accommodating the rolling elements one each. The cage comprises base material made of thermoplastic resin. Reinforced fiber and solid lubricant are mixed into the base material. The solid lubricant includes three materials, i.e., polytetrafluoroethylene, molybdenum disulfide and graphite.

Abstract: An arrangement in which respective roughnesses are defined for orbital grooves of inner and outer rings and a surface of rolling members which are constituents of a rolling bearing and in which their conditions of contact are controlled whereupon a minimum amount lubricating oil is adhered at a strong bonding force to thereby obtain a condition in which lubricating oil is continuously interposed at mutual contacting portions of the inner and outer rings, the rolling members and a cage to thereby enable favorable sliding properties and remarkable restrictions in generation of dust.

Abstract: An arrangement in which respective roughnesses are defined for orbital grooves of inner and outer rings and a surface of rolling members which are constituents of a rolling bearing and in which their conditions of contact are controlled whereupon a minimum amount lubricating oil is adhered at a strong bonding force to thereby obtain a condition in which lubricating oil is continuously interposed at mutual contacting portions of the inner and outer rings, the rolling members and a cage to thereby enable favorable sliding properties and remarkable restrictions in generation of dust.

Abstract: A process for forming a lubricating film on a direct acting bearing includes the steps of forming a liquid film on at least the rolling and sliding portions of the direct acting bearing by using a solution prepared by diluting a fluorine-containing polymer in a solvent. The liquid film is then cured to form a solid film of a fluorine-containing polyurethane high molecular compound on the direct acting bearing.

Abstract: A direct-acting bearing comprising a rail in the form of a shaft, a movable body fitted slidably to it, and a plurality of rolling bodies disposed between the rail and the movable body so as to roll and circulate with the relative sliding motions thereof, characterized in that a solid film of a fluorine-containing polyurethane high molecular compound is formed on at least the rolling and sliding portions of its components.

Abstract: A rolling sliding part is in relative rolling contact or sliding contact with a companion member, and is formed on a contact surface thereof with a lubricating film (5) composed of a polymer which contains fluorine with a functional group and in which particles (6) of polytetrafluoroethylene resin are dispersed and mixed. The lubricating film (5) exhibits a favorable lubricating property and generates little dust, and the particles (6) mixed in the film provide a favorable cushioning action under Loading. As the lubricating film (5) itself and the particles (6) are fluorine based, they provide for a good compatibility therebetween.

Abstract: A lubrication film 5 is formed of a solid lubricant including PTFE (polytetrafluoroethylene) having a mean molecular weight of not more than 25,000 and a mean particle size of not less than 5 .mu.m and less than 10 .mu.m. The films 5 adhere to balls 3, raceway tracks 1a, 2a and a retainer 4 of a bearing assembly. The solid lubricant thus adhered to each portion has a property that PTFE particles are dispersed without a binder.

Abstract: A feed screw including a screw shaft, a nut meshed with the screw shaft and a plurality of rolling members inserted between the screw shaft and the nut, wherein a solid film of a fluorine-containing polyurethane polymer is formed on any portions in rolling/sliding contact. The molecules of this solid film have urethane bonds, and form a three-dimensional reticular structure. Therefore, the film is unlikely to separate, peel off or wear. Accordingly, the feed screw produces less dust, improves lubricating property and thus elongates its life.

Abstract: A solid film of a fluorine-containing polyurethane polymer is formed on at least one of the constituent elements (inner and outer rings, rolling member and retainer) of a rolling-contact bearing. The molecules of the solid film of the fluorine-containing polyurethane polymer have urethane bonds, and form a three-dimensional reticular structure. Therefore, the film is unlikely to separate, peel off or wear. The occurrence of the dust can be restricted, and lubrication property can be improved.

Abstract: A vehicle transmission with an automatic clutch is disclosed in which for gear shifting the clutch is disengaged with the assistance of a vacuum from a source of vacuum, via a control valve having a solenoid actuated clutch release valve and a clutch servo. Disengagement of the clutch is carried out when a gear shift lever is manipulated with an engine accelerator released. The reengagement of the clutch commences as soon as the flow of current to the solenoid for the clutch release valve is cut. The clutch release valve then disconnects the clutch servo from the source of vacuum. The reduction of the vacuum in the clutch servo takes place in two stages. In the first stage, the vacuum is reduced very quickly by means of a solenoid actuated air-on (air bleed) valve for a predetermined time after the flow of current to the solenoid for the clutch release valve has been cut until the clutch begins to engage or is about to engage.

Abstract: A solenoid for selectively actuating a valve. The solenoid has a housing removably connected in a fluid-tight manner to a housing of the valve. An actuating coil is housed within the solenoid housing with an actuating plunger coaxial therewith internally thereof. The plunger is actuated reciprocably to a projected position for opening the valve when the actuating coil is energized and restores to a restored position when the coil is deenergized. The plunger terminates in a push pin of lesser diameter and defines a shoulder therewith and an opposite end terminates in an axial shaft or axle shaft of lesser diameter which defines a second shoulder therewith. Flexible dampeners are mounted on both shoulders for dampening the plunger movement as it reaches two extreme positions corresponding to the projected and restored positions thereof. The dampeners engage portions of the solenoid housing to dampen the plunger arrival at its terminal or extreme positions.