Abstract: A multi-element type chip device of the present invention includes an elongate chip substrate (10), 2n pairs of opposed electrodes (12a) [n representing a positive integer] formed on a surface of the chip substrate (10) at a generally constant interval longitudinally of the chip substrate, device elements (131-134) each formed between a respective pair of electrodes, and a protective coating (14-16) formed to cover the device elements (131-134) in a row extending longitudinally of the chip substrate (10). A (2m-1)th device element (131, 133) [m representing a positive integer not exceeding n] as counted from one end (10a) of the chip substrate (10) has a widthwise center which is offset from a widthwise center of a corresponding pair of electrodes (12a) toward the other end (10b) of the chip substrate (10).

Abstract: A variable resistor reduces an inclination of a rotor caused by spring reaction of a slider, and prevents the lowering of contact pressure and deterioration in sliding performance of the slider. The resistor includes a rotor 3 and a slider 4 inside a case 1. The variable resistor also includes a resistor substrate 2 having a collector electrode 25 at a central portion of a surface thereof and having a resistive element 24 in a circular arc shape on an outer side of the collector electrode 25 substantially concentric with the central portion. The resistor substrate 2 is mounted to a lower end portion of the case 1. The slider 4 is provided with a first arm 42 having a substantially U-like shape at one end side of a base portion 41 attached to the rotor 3, having a first contact point portion 42a at a front end of the first arm which is brought into sliding contact with the resistive element 24 in the circular arc shape.

Abstract: A current-detection coil for a current transformer operating by the Rogowski principle has an insulating annular body made of a fiber-reinforced thermosetting plastic and manufactured as a single-piece solid body in a divisible mold. The parting line of a mold serving for manufacturing the annular body is in a flattened region on the outer periphery of the annular body and on a flattened region on the inner periphery. The annular body allows current transformers operating by the Rogowski principle to be manufactured that are capable of measuring in the entire range of currents that may occur and are resistant to mechanical and thermal stresses.

Abstract: Zinc oxide (ZnO) varistors containing vanadium oxide as the principal additive and one or more cobalt oxides and/or manganese oxides additives exhibit excellent nonlinear current-voltage characteristics. Preferably the varistor compositions are capable of being sintered at a temperature of from 900.degree. C. to 950.degree. C. The low-firing capability of the newly developed materials is attractive for the application in the multilayer chip varistor, because it can cofire with the silver (Ag) or palladium/silver (Pd/Ag) internal electrode instead of using the expensive palladium (Pd) or platinum (Pt) metal. With an appropriate combination of ZnO, vanadium oxide (V.sub.2 O.sub.5) and other oxide additives, a varistor sintered at 900.degree. C. for 2 hours is obtained with a nonlinear coefficient>50 and a leakage current<20 .mu.A/cm.sup.2.

Abstract: A balanced magnetically-actuated proximity switch assembly for use in a monitoring system includes a switch assembly and an actuating assembly. The switch assembly has a plurality of magnetic switches with a respective magnetic directionalities. The actuating assembly is movable relative to the switch assembly and has a plurality of magnets. Each one of the magnets produces a magnetic field corresponding to the magnetic directionality of a respective one of the magnetic switches.

Abstract: A variable resister includes a housing made of a synthetic resin and having an inner space that opens to an open upper end of the housing, and a substrate made of a synthetic resin mounted on the housing for closing the open upper end of the housing to enclose the inner space. A resister is provided on the surface of the substrate and terminates in a conductive extremity while a conductive terminal electrically connected to a power supply terminates in an extremity that opposes the conductive extremity of the resister in the inner space. A conductive coil spring is elastically disposed between the conductive extremity of the resister and the extremity of the conductive terminal. A contact is disposed in sliding engagement with the resister such that a distance between the contact and the conductive extremity of the resister is used as a control variable.

Abstract: A low-cost pad pointing device with improved performance, reliability and durability, that can be used as a cursor pointing device for computers, remote controls, web TV, TV guide browsers, video games, consumer electronics, industrial controllers, medical, automotive and other applications. A protruding plus shaped segment can be deflected to positions on an electrical medium that results in the generation of a speed and direction signal to be interpreted by low cost available circuitry including microcontrollers.

Abstract: The invention relates to a chip resistor which is used as a circuit part for various electric apparatuses. The object of the invention is to realize a low resistance and a low TCR, and also high accuracy and high reliability. In order to achieve the object, a chip resistor is configured so as to have: a substrate; a resistance layer which is formed on at least one face of the substrate and which is made of a copper nickel alloy; upper-face electrode layers which make surface contact with the upper faces of both the end portions of the resistance layer; and end-face electrodes which are formed so as to cover the upper-face electrode layers. Since the bonding between the resistance layer and the upper-face electrode layers is conducted by metal-to-metal bonding, particularly, impurities which may affect the properties do not exist in the interface. As a result, it is possible to realize a chip resistor which is excellent in heat resistance, and which has a low resistance and a low TCR.

Abstract: A high responsivity thermochromic infrared detector which has an operating temperature that is established on the steepest part of the phase transition curve and is maintained there while the infrared detector is operated.

Abstract: A thick-film strain-sensing structure for a media-compatible, high-pressure sensor. The strain-sensing structure generally includes a metal diaphragm, at least one electrical-insulating layer on the diaphragm, an interface layer on the electrical-insulating layer, and at least one thick-film piezoresistor on the interface layer for sensing deflection of the diaphragm. The interface layer and the electrical-insulating layers are preferably formed by thick-film processing, as done for the piezoresistors. For compatibility with the metal diaphragm, the electrical-insulating layer has a CTE near that of the diaphragm. The interface layer is formulated to inhibit and control diffusion of the electrical-insulating layers into the piezoresistors. For this purpose, the interface layer is formed from a composition that contains, in addition to a suitable organic media, alumina, zinc oxide, and at least one glass frit mixture comprising lead oxide, a source of boron oxide such as boric acid, silica and alumina.

Abstract: The trip device comprises a magnetic circuit having a first and second fixed parts, a movable element and an adjustment device. The adjustment device comprises a shunt and an air gap arranged between the first and second fixed parts branched off with respect to the mobile element. The tripping threshold of the trip device is modified by varying the air gap distance between the shunt and the second fixed part. In a circuit breaker, the mobile element acts on an opening mechanism and an adjustment part acts on the adjustment device making the air gap distance vary. A sensor associated to the magnetic circuit supplies a measurement signal to a processing unit.