Abstract: The insulation paste of the present invention contains (a) a glass powder, and (b) an organic solvent, wherein one or both of alumina (Al2O3) and titanium oxide (TiO2) are contained in the paste as a glass diffusion inhibitor, and the content of this glass diffusion inhibitor is 12 to 50% by weight based on the content of inorganic component in the paste.

Abstract: The present invention relates to an electrically conductive composition for filling via-holes formed in an electronic circuit substrate containing an electrically conductive metal and a vehicle, wherein the content of the electrically conductive metal is 57 vol % or more, and the composition is a plastic fluid for which fluidity increases when external pressure is applied to the composition.

Abstract: Recording/reproducing methods and apparatuses for a magneto-optical recording medium are disclosed. The magneto-optical recording medium may include a recording layer in which information can be recorded and a reproducing layer to which information in the recording layer can be transferred. According to one embodiment, the method includes encoding the data to be recorded/reproduced with a low-density parity check code, writing the encoded data to the recording layer of the magneto-optical recording medium, transferring the encoded data from the recording layer to the reproducing layer, and decoding the encoded data from the reproducing layer.

Abstract: There is provided a reproduction control method for used with a data carrier that includes a read only memory area that has concaves and convexes formed by injection molding, and records information to be reproduced, and a reproduction control layer, layered on the read only memory area, which changes a state through light irradiation, which method includes the steps of determining information which is prohibited from being reproduced among the information, and changing the reproduction control layer, through the light irradiation onto a position on the read only memory area corresponding to the information which is prohibited from being reproduced, from a reproduction permissible state that allows the information to be reproduced to a reproduction prohibition state that prevents the information from being reproduced. Also, the data carrier, its manufacturing method and driving method are provided.

Abstract: A transmitter, a method of detecting an available node number, and a method of generating topology data are disclosed for a ring type network. The transmitter in a ring type network includes a packet generation and transmission part generating a packet to cause other transmitters in the ring type network to set node numbers assigned to the transmitters and circulating the packet in the ring type network, and a node number detection part, in response to receipt of the circulated packet, reading the node numbers from the packet and detecting an available node number with reference to the read node numbers. According to the present invention, it is possible to maintain and operate a ring type network with less operation steps to improve a maintenance and operation speed.

Abstract: Different signal patterns are inserted in different time slots within a vacant slot for signals passing through redundantly configured units. A selector, which selects one of the units as a working unit, is controlled to select the inserted signal patterns in sequence. A pattern monitoring circuit is provided on the output side of the selector, and identifies a faulty unit by detecting an abnormality in a signal pattern.

Abstract: In a magnetic disc cartridge, a magnetic disc is contained for rotation in a casing which is provided with a magnetic head insertion opening and a shutter member for opening and closing the magnetic head insertion opening. The shutter member is urged by a shutter spring to a closing position in which it closes the magnetic head insertion opening. The shutter spring is formed of a coiled metal spring which is engaged with the casing at one end and with the shutter member at the other end and urges the shutter member to the closing position under its resiliency generated by deflection thereof.

Abstract: The purpose of this invention is to provide a terminal electrode composition for a multiple-layered capacitor that is suitable for a plating base and that has improved resistance to heat stress as the result of sintering at a low temperature (high reliability). The terminal electrode composition for multiple-layered capacitor of this invention is made of precious metal particles and 0.5-7 wt. % (based on the weight-of the precious metal particles) of an inorganic binder having a 400.degree.-500.degree. C. glass transition point and a 400.degree.-550.degree. C. glass softening point.

Abstract: An electrically conductive thick film resin composition comprising finely divided particles of (1) a conductive metal dispersed in a liquid organic medium comprising (2) acrylic polymer primary binder and (3) network resin auxiliary binder having a thermal degradation temperature of at least 300 C. dissolved in (4) volatile organic solvent.

Abstract: A spool valve has a valve housing with a valve bore formed therein, a spool having a land portion slidably accommodated in the valve bore, a control port formed within the valve housing, able to communicate with the valve bore, and opened and closed by the land portion, and an annular groove open at an inner peripheral surface of the valve bore and communicating with the control port. Part of the control port is open over the inner and outer parts, as taken in the widthwise direction, of the annular groove. The degree of opening of the port is variably controlled by the displacement of the land portion.

Abstract: An electromagnetic actuator includes a housing and a pair of stators cooperating with the housing to form a magnetic circuit for a solenoid. Each of the pair of stators has a tubular portion, and the tubular portions of the pair of stators have their one ends disposed in the opposed spaced relation to each other. The solenoid is mounted around the tubular portions of the pair of stators, and an armature is received in the tubular portions of the pair of stators so as to be movable along the axis of the tubular portions. The armature is supplied with a force when an electric current is applied to the solenoid. In order to keep the magnetic resistance of the magnetic circuit to a low level, one of the pair of stators is formed integrally with one end of a tubular body of the housing so that the housing and the one stator constitute a unitary member.

Abstract: A packet-switching system having a buffer memory for storing received packets. The system has a FIFO-type table for storing data items each consisting of the start and end addresses of every region of the buffer memory from which data has been read out and transferred to a receiving station and which has thus become vacant. The start and end addresses of each region of the buffer memory are controlled, thereby achieving a high-speed control of the buffer memory.

Abstract: In an electromagnetic control valve, a pair of spools are accommodated within a guide bore in a housing in coaxial relation to each other for axial movement relative to the housing. First and second flow passageways are formed in the housing. Flow of hydraulic fluid through the first flow passageway and flow of hydraulic fluid through the second flow passageway are controlled respectively by the pair of spools independently of each other. Movements of the respective spools are controlled respectively by a pair of electromagnetic drive units independently of each other. The pair of spools have their respective inner ends facing toward each other. The inner ends are spaced away from each other when the pair of spools are in their respective initial positions. Moving regions of the respective inner ends are at least partially overlapped with each other.

Abstract: A conductive paste composition consisting of an admixture of: (a) conductive metal particles having an average particle size of about 0.3 to 1.0 .mu.m; (b) particles uniformly coated with a conductive metal and having an average particle size of not more than 1 .mu.m; and (c) an organic medium, the admixture of particles (a) and (b) being dispersed in the organic medium.