Abstract: A transparent electrode for use in a dispersive type electroluminescent device or the like comprises a transparent substrate, a transparent electrode film on the substrate, and a number of closely spaced protective ridges continuous with each other on the electrode film.

Abstract: A head connection structure of a printer including a carriage with a flexible circuit sheet and a thermal head with another mating circuit sheet, comprises a cap board positioned detachably on the carriage and a positioning guide pin provided on the carriage. Both circuit sheets are held by and between the cap board and the carriage with the circuit sheet of the thermal head being positioned accurately by the guide pin.

Abstract: Herein disclosed is an optically reflecting code plate having a number of reflective and unreflective portions formed alternately on the surface of its substrate. This substrate is made of aluminum of high purity, for example, and has its surface anodized with a colorless, transparent and porous aluminum oxide film. At predetermined positions of the oxide film, which are to be formed with the aforementioned unreflective portions, moreover, metal such as nickel, tin, copper, iron, cobalt, silver, manganese or selenium is deposited by electrodeposition in the bottoms of the pores of the oxide film thereby to form a metal-deposited layer. Moreover, the vicinities of the openings of the aforementioned pores are impregnated with a dye such as a black metallized complex salt dye or a Nigrosine dye to form a dye-impregnated layer. The aforementioned metal-deposited layer and the dye-impregnated layer are overlaid the later over the former thereby to form the unreflective portions.

Abstract: A dispersion electroluminescence element comprising a fluorescent powder layer which is formed on a transparent electrode by coating process and a counter electrode facing said transparent electrode with said fluorescent powder layer interposed therebetween, characterized in that the fluorescent particles in the fluorescent material layer are coated with copper after forming the layer on the transparent electrode and then laminating the counter electrode thereon.

Abstract: A disk recording and reproducing device includes a chassis, a disk holder movably mounted on the chassis for holding an information storage disk, an eject lever slidably mounted on the chassis, a side panel mounted on the chassis, an ejector button mounted on the chassis for actuating the eject lever, a slide member slidably mounted on the side panel substantially parallel to the eject lever and actuatable in response to sliding movement on the eject lever for substantially vertically moving the disk holder between unload and load positions, the eject lever having an engagement tongue projecting toward and engaging the slide member in a direction across the direction in which the slide member is slidable.

Abstract: In a stepping motor comprising a stator including a plurality of stator plates, and a rotor made of a permanent magnet, a coating layer made of a nonmagnetic material is applied to the stator plates, and the rotor is rotated within the stator plates while the rotor is maintained in a closely adjacent relation contactable with the coating layer of the stator plates.

Abstract: A composite switch for starting and stopping the air conditioner of a vehicle and for changing the flow of air supplied by an air blower comprises a main switch, a selector switch, and an auxiliary switch that is connected in series with the main switch. The main switch is used to start and stop the air conditioner. The selector switch is used to change the flow of air. A selector member for switching the contacts of the auxiliary switch from one state to another is disposed opposite to an actuating member for shifting the contacts of the selector switch such that whenever the selector switch is in a certain position, the actuating member drives the selector member to open the main switch. Thus, whenever the blower is stopped, the air conditioner is stopped.

Abstract: A high frequency oscillator having an oscillation transistor connected to a resonant strip line unit consisting of a main strip line member and an auxiliary strip line member. The auxiliary strip line member is connected in parallel with or isolated from the main strip line member by a switch diode for switching the characteristic impedance of the strip line unit so as to generate a reception or transmission carrier wave output. A varactor diode connected to the strip line unit has its capacitance changed through an applied control voltage for channel switching. A modulating signal input terminal is directly connected to a portion of the auxiliary strip line member for modulating an FM transmission signal independently of the value of the control voltage applied to the varactor diode.

Abstract: A rotary encoder comprises a code disk provided with a number of strip-like reflection portions circumferentially equidistantly formed and radially extended on one surface of the code; and a sensor head constituted by a light emitting portion and a pair of light receiving portions provided at the opposite sides of the light emitting portion respectively, the sensor head being disposed such that the light emitting and receiving end surface thereof is in opposition to the one surface of the code disk, the sensor head being supported movably in the radial direction relative to the code disk.

Abstract: A magnetic recording medium for perpendicular magnetization includes a base of a nonmagnetic material, and a magnetic layer having perpendicular magnetic anisotropy on at least a face side of the base, the magnetic layer being composed of cobalt as a main component with carbon added thereto.

Abstract: A resistor network having resistor elements disposed equally spaced apart in parallel relation to each other and one or more insulation substrates to which the resistor elements are rigidly mounted. The substrates and the elements are all enclosed in a resin seal in the form of a belt. The resin seal is provided with one or more holes extending through it for dissipating heat. The holes are rectangular in shape, and are disposed between every two of the resistor elements or in other regular manner.

Abstract: Disclosed is a thermal printer which comprises a thermal head mounted on a carriage and movable relative to a platen having recording paper wound partially therearound, and a carriage guide plate carrying the carriage, and pivoted so as to separate the thermal head from the platen. A cam mechanism is provided for pivoting the carriage guide plate, and a cam operation mechanism driven by the motor is provided for operating the cam mechanism.

Abstract: A floating type magnetic head comprises a slider made of a nonmagnetic material and a magnetic core inserted in a core inserting groove formed through the slider so that the magnetic core is bonded at the inserted position by a bonding agent consisting of glass. A slider groove is formed at a central part of the slider, while floating surfaces are formed on both sides of the slider groove, with the core inserting groove formed in communication with the slider groove.

Abstract: A compact automatic signal cancelling apparatus for a direction indicator mounted on a motorcycle, engine driven bicycle or like vehicle is housed in a cylindrical member which is fixedly secured to the handlebar. A variable resistor is incorporated in the apparatus for detecting an angle of turning movement of the handlebar and its rotary shaft is connected to the body or frame of the motorcycle which serves as a reference point for the apparatus. As the handlebar is turned by the driver on the motorcycle, the apparatus in the cylindrical member is rotated while the rotary shaft of the variable resistor is kept immobable. The angle of turning movement of the handlebar is detected by the change in resistance value of the variable resistor, which is transmitted to a control circuit. The control circuit automatically turns on or off the signal on the direction indicator in response to detection of the change in resisting value of the variable resistance.

Abstract: In a receiver for satellite broadcasting service, a selected audio subcarrier is converted into an IF signal demodulated into a demodulated signal which is applied to a feedback voltage generating means which converts the applied signal into a feedback voltage at a voltage ratio corresponding to the maximum frequency deviation of the selected audio subcarrier. The feedback voltage is applied by an operational amplifier to a varactor diode in a voltage-controlled oscillator. The oscillation frequency of the voltage-controlled oscillator is therefore varied dependent on the frequency deviation of the selected audio subcarrier to cause the maximum frequency deviation of the IF signal from a frequency mixer to match the bandwidth of a bandpass filter.

Abstract: A support construction for an optical pick-up, such as used in a compact disc player, has a first leaf spring with an elongated opening defined between opposite sides in the longitudinal direction and an optical lens support centrally in the opening by a pair of support members extending from the opposite sides to allow the lens to be moved by a voice coil toward or away from the compact disc without sidewards deviation. The first leaf spring is supported on an intermediate base, and the intermediate base is supported by a pair of second leaf springs of similar construction, in order to allow the intermediate base to be finely adjusted by another coil in a plane parallel to the disc. The pair of second leaf springs are mounted to a slider which is driven radially of the compact disc.

Abstract: A single drive source drives a pressing cam to selectively press a thermal head against a thermal transfer tape for printing on a recording paper behind the tape. The tape is divided into three longitudinal printing regions so the thermal head can be reciprocally moved forward, back and forward again respectively over the three regions of the tape before the tape is advanced to a new section. The drive source powers the reciprocating movement of the thermal head and the tape winding as well.

Abstract: A radio receiver includes a first tuner, a first intermediate-frequency amplifier, at least two intermediate-frequency filters connected between the first tuner and the first intermediate-frequency amplifier and having difference frequency bands, a switching circuit for applying an output signal from the first tuner through a selected one of the intermediate-frequency filters to the first intermediate-frequency amplifier, an automatic gain control circuit for controlling the gain of the first tuner, a first phase-locked loop for enabling a local oscillator in the first tuner to oscillate at a frequency dependent on the frequency of a desired channel, a second tuner, a level detector circuit for detecting the level of an output signal from the second tuner, a second phase-locked loop for enabling a local oscillator in the second tuner to oscillate at a prescribed frequency, and a controller for controlling the first phase-locked loop to enable the first tuner to receive and issue a desired signal from a desire

Abstract: A discharge terminal is provided integral with a resistor network unit to provide a discharge path for high voltage static electricity so that the high voltage spike does not alter the present values of resistance within the newtwork unit.The discharge terminal is located near a lead terminal to define a discharge gap between the lead terminal and the discharge terminal such that a static spike will not reach resistive elements in the resistor network.

Abstract: A microwave resonance circuit device including plural microstrip lines provided on one side of a dielectric substrate. A dielectric resonator is mounted on the reverse side of the substrate from the microstrip lines and is disposed so as to have a coupling relation with a first one of the microstrip lines. A ground conductor is arranged on the reverse side of the substrate so as to overlap substantially one-half of the width of the first microstrip line extending in a direction away from the dielectric resonator, and to overlap entirely the other microstrip lines. A transistor is mounted on the same side of the substrate as the microstrip lines and connected therewith to form an oscillator circuit.