Abstract: This invention deals with a portable terminal that reduces extraneous tones in a portable terminal in which is mounted an electromagnetic induction actuator that produces voice signals, a buzzer signal or a low frequency vibration. By short-circuiting the terminal fittings of the electromagnetic induction actuator or by connecting them electrically to amplifiers or to a signal generator that produces a constant voltage signal or a constant-frequency signal, the extraneous tone produced by vibration of the mechanical vibration system of the actuator is reduced.

Abstract: This invention concerns an electromagnetic induction actuator to be mounted in small equipment such as portable telephones and pagers; also concerns such portable telecommunications equipment. The electromagnetic induction actuator, as well as the portable telecommunications equipment in which it is mounted, can be assembled in a thin and small package even though there are tabs as shock resistance stoppers, and has good acoustical characteristics. In the electromagnetic induction actuator there is a yoke that has tabs as stoppers to provide shock resistance, and there are springs that have inner rings, outer rings, bridge arms that connect the inner and outer rings and recesses that correspond to the tabs of the yoke.

Abstract: There is a terminal block with leaf spring metal terminals that extend downward from a housing on the side opposite the open end of the housing in which a diaphragm is fitted and fixed, and an elastic material functions as a pad that is sandwiched between the surface of a circuit board and the open side of the housing on the side from which the metal terminals project, with the metal terminals pressed against the conduction pattern of the circuit board to make an electrical connection.

Abstract: An intake path organizer forms an intake path communicating with an air cleaner. The intake path organizer has a fuel passage for guiding fuel from a fuel injection valve fitted into the intake path organizer, at least one fuel induction port having one end communicating with the fuel passage and the other end communicating with the intake path, and an air bleed passageway having one end communicating with the intake path further upstream than the fuel induction port and the other end communicating with the fuel passageway, all of the elements being provided in the intake path organizer to promote atomization of fuel in an engine fuel supply system. The fuel induction ports can open to the intake path in a direction orthogonal to the airflow in the intake path.

Abstract: In a portable device for driving a vibration actuator by means of a battery, a power supply circuit equipped with a boosting circuit for converting a voltage of a built-in battery 1 into a high voltage and a pulse generating circuit for intermittently supplying power to the vibration actuator is provided, and a boosted DC or AC voltage is impressed on the vibration actuator continuously intermittently or discontinuously.

Abstract: A rubber composition obtained by (a) kneading at least one low air permeable rubber having vulcanizable functional group and a curing agent, which can vulcanize the low air permeable rubber having vulcanizable functional group, at a temperature within a range where the low air permeable rubber having vulcanizable functional group is not vulcanized, and (b) blending 25 to 100 parts by weight of at least one rubber having vulcanizable carbon-carbon double bond per 100 parts by weight of the low air permeable rubber having vulcanizable functional group with the kneaded product, kneading at a temperature within a range where the low air permeable rubber having vulcanizable functional group can be vulcanized to selectively vulcanize the low air permeable rubber having vulcanizable functional group.

Abstract: An improved electromagnetic actuator having a coil (10) on which a current is impressed, a magnet (20) that forms a magnetic circuit across a magnetic gap (G) with a magnet yoke (21), and having a diaphragm (11) that vibrates when a high-frequency current is impressed, and a vibration plate (22) that vibrates when a low-frequency current is impressed, with these parts enclosed within a basket (3) and the coil (10) placed within the magnetic gap (G). As one invention, a radial array of magnets, a vibration plate with a doublesuspension structure, and a bottom plate of magnetic shielding material are placed in the basket to suppress the leakage of magnetic flux.

Abstract: A spark-ignition fuel injection internal combustion engine is provided with a sub-combustion chamber in communication with a main combustion chamber. An injecting device intermittently injects mixture gas into the sub-combustion chamber. A volumetric ratio of each of the sub-combustion chamber and the main combustion chamber is set within a range of 1:4 to 3:2.

Abstract: A raw material composition for an extrusion moldable polyolefin resin composition including (a) a polypropylene resin, (b) a polyethylene resin, (c) an esterified cellulose material obtained by esterifying a cellulose material with a polybasic acid anhydride and having a content of the polybasic acid anhydride bonded thereto of 0.5-20% based on the weight of the cellulose material, and (d) an organic peroxide compound, wherein the weight ratio of (a) to (b) ranges from 30:70 to 80:20, wherein the weight ratio of a total of (a)+(b) to (c) ranges from 30:70 to 70:30, and wherein (d) is present in an amount of 0.001 to 0.1% based on a total weight of (a)+(b)+(c). By kneading the raw material composition at 150-200° C. for 0.5 to 30 minutes, a polyolefin composition for extrusion molding is obtained.

Abstract: A rubber composition obtained by

Abstract: A fuel injection internal combustion engine is provided with a sub-combustion chamber in communication with a main combustion chamber. A volumetric ratio of the sub-combustion chamber to the main combustion chamber is set within a range of 2:8 to 6:4. A mixture switching valve is provided for injecting the mixture of the fuel and compressed air into the sub-combustion chamber, and a spark plug is arranged in the sub-combustion chamber. The sub-combustion chamber is formed of a material having a thermal conductivity which is lower than that of the material forming the main combustion chamber.

Abstract: To provide a carburetor for a two-cycle engine, and prevent water from entering into the engine, using a lubricating system of the engine. Oil sealing members are attached to bearings of a throttle shaft of a carburetor. Oil holes are formed at positions near a barrel passage and inside the oil sealing members, thereby forcibly supplying lubricating oil to the bearings. Therefore, the bearing are continuously lubricated, so that water is prevented from entering into the carburetor. The forcibly supplied lubricating oil leaks from the bearings to the barrel passage, and is supplied to the interior of the engine together with air-fuel mixture produced by the carburetor. The two oil holes communicate with each other via a dovetail groove, so that the lubricating oil from a lubricating oil plug is simultaneously supplied to the bearings at the opposite ends of the throttle shaft.

Abstract: In order to supply an air-fuel mixture composed of the fuel and compressed air to a combustion chamber of an engine, an air-fuel mixture valve is opened by a valve body which is moved via the core shifted by magnetic force of the electromagnetic coil. The invention provides a method of determining the magnetic force of the electromagnetic coil on the basis of the relationship defined by Fm.gtoreq.Fv-fa, where Fm denotes axial tension depending upon the magnetic force of the electromagnetic coil, Fv denotes force necessary for opening or closing the empty air-fuel mixture valve, and fa denotes force for compressed air to open the air-fuel mixture valve. The pressure of the compressed air is used as the auxiliary force to open the air-fuel mixture valve. This allows the air-fuel mixture valve to be made more compact and reduces power consumption of the electromagnetic coil.

Abstract: A door lock/unlock system of a type having an electrically operated door lock/unlock mechanism for holding a door in a locked position and allowing the door to be opened comprises a position sensor for detecting positions of the door lock/unlock mechanism, namely a lock position and an unlock position, when a battery is removed from an electric circuit once and thereafter re-connected again to the same, with or without an intention of committing a theft of the vehicle, and a controller for controlling operation of the door lock/unlock mechanism according to the detected position.

Abstract: A highly efficient spark ignition two-cycle internal combustion engine is provided which assures stable and excellent combustion over a wider operation region of the engine. The spark ignition two-cycle internal combustion engine includes a sub-combustion chamber, and a pressure accumulating chamber which is filled with compressed air. A switching valve is arranged for communicating the pressure accumulating chamber with the sub-combustion chamber. A fuel injecting device injects fuel into the pressure accumulating chamber. A control device controls the operations of the switching valve and the fuel injecting device.

Abstract: A cement pumpability-enhancing additive which comprises polyethylene glycol and diethylene glycol monobutyl ether and/or a derivative thereof, and optionally polysaccharide. The additive is especially useful for high-strength, high-flow concretes for use in construction.

Abstract: A rubber composition for a tire is provided which is excellent in wet grip performance on a wet road surface and in fuel saving performance. A tire tread and a tire which include such a rubber composition are also provided.

Abstract: There is disclosed a tape including a base layer containing substantially no active agent and a coating film layer containing a heat-vaporizable active agent and being formed on one side of the base layer by application of a coating containing the active agent. Also disclosed is a method of heat vaporizing an active agent which comprises moving the tape on a heater element while allowing the non-coated side of the base layer of the tape to come into contact with the heater element.

Abstract: A wafer holding apparatus for holding a wafer stationary includes a main body and a plate member detachably placed on the main body. The main body includes a cavity having an open end at the upper surface of the main body and includes a passageway extending from the cavity to communicate the cavity with a vacuum pump. The plate member is placed on the main body to plug the open end of the cavity and supports on its upper surface a wafer to be processed. The plate member has a number of through bores arranged in a predetermined arrangement matched for the arrangement of micromachined sections of the wafer where micromachines or integrated circuits are to be formed. Before processing of the wafer, the plate member is selected for the wafer in such a manner that the through bores of the plate member are deviated from the micromachined sections of the wafer where the micromachines are to be formed.

Abstract: A process for manufacturing a micromachine comprising a machine element supported on a substrate, comprising the steps of successively depositing on the substrate machine part layers and removable sacrificial layers made of an oxide ceramic material containing a rare earth, Ba, and Cu, and selectively removing the machine parts layer and the sacrificial layers so as to leave the machine element.