摘要:
In a magnetic head of perpendicular magnetization type having main and sub magnetic poles arranged at both sides of a recording medium, a nonmagnetic supporter holding a high permeability magnetic thin layer of the main magnetic pole is formed by a polycrystalline sintered body substantially composed of titanium carbide and alumina. This polycrystalline sintered product well matches with a recording medium having a cobalt-chromium alloy layer so that the recording medium does not wear for a long time of use, and therefore, so that the contact surface of the main magnetic pole is hardly damaged. The same sintered body may also be used for the sub magnetic pole arranged to be in contact with the recording medium. Some structural improvements are also provided so that undesirable influence due to an adhesive layer adjacent to the magnetic thin layer is removed. One or more additional thin layers may be provided for reducing crosstalk between adjacent tracks. A magnetically shielding block is provided to prevent undesirable influence caused by an external magnetic field.
摘要:
A low-pressure mercury vapor discharge lamp in which a rare gas and mercury are provided in an outer bulb, which in turn contains therein a plurality of bent inner tubes, each having an opening at an end and an electrode at the other end thereof. A starting probe is provided between the openings in the outer bulb. An operating circuit or starter is connected to the electrodes. Further, a starting probe circuit is connected to the starting probe to apply a high voltage to the starting probe at the time of ignition.
摘要:
In a fuel injection type internal combustion engine including a cylinder body with a cylinder chamber, a cylinder head, a piston adapted to be reciprocated within the cylinder chamber, an injection nozzle having its central axis inclined with respect to the top of the piston and its injection port offset from the center of the cylinder chamber, and a combustion chamber cavity opened in the top of the piston, an auxiliary cavity defined by a notched wall having complicatedly cut surfaces is formed in the opening portion of the combustion chamber cavity. The notched wall is formed in a manner to follow the conical surface of a cone, in response to the piston travel, the cone having as its apex a point located upstream of the injection port, as its center the central axis of the injection nozzle, and as its apex angle the maximum spray diverging angle of the injection nozzle. With this structure, the collision of injected fuel against the combustion chamber cavity wall is prevented while minimizing the reduction in the compression ratio of the engine.
摘要:
A starting circuit for discharge lamps includes a current limit device, a full wave rectifier circuit and a Cockcraft-Walton's circuit which are connected between a d.c. discharge lamp having a cathode and an anode and the input terminals of an a.c. power source. Moreover, the Cockcraft-Walton's circuit is constructed by sharing a rectifier with the full wave rectifier circuit and a preheating circuit is provided for the cathode and includes another rectifier of the full wave rectifier circuit and a switching device.
摘要:
An engine of the present invention comprises a valve body configured to open and close ports and formed in a cylinder head, a drive cam mechanism operable in association with a crankshaft by a driving power transmission mechanism, a pivot cam mechanism which is configured to be pivoted according to movement of the drive cam mechanism to cause the valve body to open and close and is configured to change a pivot state to change a lift characteristic of the valve; and a servo motor configured to change the pivot state of the pivot cam mechanism, wherein the servo motor is positioned at one end portion of the pivot cam mechanism such that the servo motor is distant from the driving power transmission mechanism.
摘要:
A gas discharge panel having (i) a plurality of cells arranged in a matrix between a pair of opposing substrates, the cells being filled with a discharge gas, and (ii) plural pairs of display electrodes arranged on a surface of one of the substrates so as to extend through the plurality of cells, each pair of display electrodes being composed of a sustain electrode and a scan electrode that define a main discharge gap therebetween. In such a gas discharge panel, each sustain electrode and scan electrode includes a plurality of line parts that extend in a row direction of the matrix. Furthermore, the main discharge gap and a line part gap between adjacent line parts are provided such that a discharge current waveform of the display electrodes has a single peak when the gas discharge panel is driven.
摘要:
A method for displaying a moving picture having a proper tone by changing a combination of subfields constituting a field of the moving picture, the subfields each having a different weight of luminance, a motion vector indicating a moved direction of the image and a moved quantity thereof is detected from image data, new image data for providing a tone equivalent to a tone to be received by a retina to the retina when the image moves is generated corresponding to the detected motion vector, and the combination of subfields is determined based on the generated new image data.
摘要:
The invention provides a high-density multilayer printed wiring board and a method for manufacturing a multilayer printed wiring board having high-density wiring that is formed easily. A method for manufacturing a multilayer printed wiring board formed by laminating a plurality of laminates comprises a step for forming a conduction hole on a laminate comprising an insulating board having both sides on which conductive films are formed, a step for electrically connecting between both sides of said laminate through the above-mentioned conduction hole and planarizing the surface, a step for patterning the above-mentioned conductive film desiredly and forming a projection member at a desired position of the above-mentioned conductive film, a step for laminating bonding members having a through hole to which the above-mentioned projection member is inserted, which is served for bonding between the above-mentioned laminates, and the above-mentioned laminates alternately with insertion of the above-mentioned projection member into the above-mentioned throughhole, and a step for press-molding the above-mentioned laminated laminates and bonding members with heating.
摘要:
An automotive seat-back structure is provided to protect a passenger's neck vertebra at a vehicle's rear-end collision and also support the passenger's lumbar vertebra. The automotive seat-back structure includes a seat-back frame 2, an actuating member 4 and supporting means 7. A first supporting member 5 is carried by a lower end 2c of the seat-back frame 2, while a second supporting member 6 is carried by the actuating member 4 or the supporting means 7. The first and second supporting members 5, 6 carry a lumbar supporting member 8 capable of supporting the passenger's lumbar vertebra on pressure. The member 8 is carried so as to be rotatable back and forth and also movable up and down.