Abstract: A semiconductor memory device of the present invention includes bit lines and common data lines for data writing or readout into or from plural memory cells. On these bit lines and common data lines, equalizing or precharging circuits are provided and operate during address transition. During transition from writing to readout, such transition is detected to actuate the equalizing or precharging circuits more promptly than usual to shorten the write recovery time to realize a high speed operation. The output circuit of the semiconductor memory device of the present invention is provided with a precharging circuit for sensing and precharging the level on the output terminal to an intermediate level. The output circuit of this construction allows to reduce the power consumption and to assure a high speed outputting operation.

Abstract: A silver halide photographic material having silver halide emulsion layers, at least one of which contains a silver halide emulsion that has been prepared in such a way that a spectral sensitizing dye is added after 85 wt % of the soluble silver salt in solution that is to be added during ripening of silver halide emulsion has been added but before the start of a desalting step, and that a spectral sensitizing dye which may be the same or different from the first added dye is added during the desalting step.

Abstract: The present invention provides a composite non-woven fiber material comprising at least one stainless steel fiber layer and at least one carbon fiber layer, the alternating stainless steel fiber layers and carbon fiber layers being intimately interlocked to form integrated composite material, at least one exposed surface layer of the composite material being a stainless steel fiber layer.

Abstract: An electromagnetic fuel injection valve in which an area of an annular gap formed by a ball valve and a valve seat when the ball valve is lifted is made smaller than cross sectional area of grooves provided on a fuel swirling element which gives fuel supplied a swirling force and further is made larger than a cross sectional area of a fuel injection port, whereby the fuel is injected with an excellent atomizing characteristic.

Abstract: An image reading apparatus comprises a light emitting device for illuminating an original including information to be read; image sensor for inputting an optical information and converting it into an electric signal; and wherein the light emitting device has a xeron glow lamp and a light source which can illuminate a vicinity of a main electrode of the glow lamp.

Abstract: The photosensitive resin composition comprises (a) a ternary copolymer of an ethylenically unsaturated amide, carboxyl-containing monomer and third monomer, (b) an esterified resin by the reaction of an unsaturated carboxylic acid and a novolactype epoxy resin, (c) a photopolymerizable monomer, (d) a photopolymerization initiator and (e) a powder such as a finely divided silica filler. The resist layer formed from the composition is capable of being developed with an alkaline aqueous solution and has excellent heat resistance in addition to other desirable properties when the patterned resist layer by the pattern-wise exposure to ultraviolet light and development is subjected to a heat treatment to effect thermal curing.

Abstract: A drain cover for covering a pair of draining ports which are formed in the bottom of a cylindrical horizontal yoke of a dynamic electric machine at a distance from each other in the circumferential direction of the yoke.

Abstract: An optical system featuring a semiconductor laser for oscillating a beam which has, in a far field pattern, two lobes in the direction aligned with a pn junction interface of the semiconductor laser. The optical system is provided with a total reflection mirror for reflecting part of the beam in such a manner that one of the two lobes is separated as a result of the reflection of part of the beam from the other, and with a polarization beam splitter having a junction for synthesizing rays in such a manner that the lobes which have been separated by the total reflection mirror are superimposed. The apparatus is thus capable of forming a single beam spot at which the two lobes are superimposed.

Abstract: An IC card includes an IC module and a card base. The IC module is constituted by a circuit board having contact patterns formed thereon and an IC chip mounted on the circuit board. The card base houses the IC module so as to expose the contact patterns. The circuit board of the IC module is constituted by a pattern portion on which the contact patterns are formed and bent portions formed by bending the pattern portion. The card base includes an opening for exposing the contact patterns of the IC module, and clamping portions, formed on peripheral portions of the opening, for fixing the bent portions. The bent portions of the IC module are fixedly clamped by the clamping portions such that the contact patterns are arranged on substantially the same plane as a surface of the card base.

Abstract: Novel tricyclic compounds having a TXA.sub.2 antagonizing activity represented by formula (I): ##STR1## possess a potent antagonizing action against thromboxane A.sub.2 and also an antiallergic and/or antihistaminic activity, and are expected to have preventive and therapeutic effects on ischemic diseases, cerebro-vascular diseases, etc.

Abstract: A variable resistor comprising a substrate provided on the surface thereof with a resistor on which a sliding member is in slidable contact therewith. The substrate is formed of diallyl phthalic resin, and a carbon resistor formed with a predetermined shape is molded integrally on the surface of the resin substrate. The carbon resistor contains diallyl phthalic resin as a binder resin. Terminals and the carbon resistor molded on the resin substrate are electrically connected through conductive paste. A variable resistor with good physical characteristics is obtained that can be manufactured at low cost, with superior heat resistance, capable of mounting by flow soldering, and having a small rate of resistance value. In addition, since the resistor and the terminals are connected through the conductive paste, connecting strength thereof is not only brought about by physical pressure but reinforced by the adhesion of the conductive paste.

Abstract: A mark-bearing support for a dental X-ray film pack is disclosed. The support has an X-ray pervious bite portion to be clenched between upper and lower teeth and a support portion for temporarily holding the dental X-ray film pack thereon. The support portion is provided with a mark formed of an X-ray impervious material such as a lead-containing ink.

Abstract: An optical amplifier includes a plurality of amplifiers which are disposed between a first reflective mirror and a second reflective mirror of an optical resonator arranged with the first reflecting mirror and the second reflecting mirror in face-to-face relationship and are adapted to amplify light through induced emission; and a beam combining and separating device which is adapted to combine the light made incident thereupon from the plurality of amplifiers and cause the light to emerge therefrom in the direction of the second reflecting mirror and is also adapted to separate the light from incident thereupon after being reflected by the second reflecting mirror and cause the light to emerge therefrom in the respective directions of the amplifiers. As the combination and separation of the light are repeatedly effected, a beam of light having high energy amplified by the amplifiers is obtained.

Abstract: A novel silver halide light-sensitive material is provided, comprising a compound represented by the general formula (I): ##STR1## wherein EAG represents an aromatic group which receives electrons from a reducing substance; R.sup.1 represents hydrogen atom or a substituent; R.sup.2 represents an electrophilic group, with the proviso that R.sup.1 and R.sup.2 may be in the position of cis or trans to each other; R.sup.3 and R.sup.4 each represents hydrogen atom or a hydrocarbon group; ETG represents a group capable of transferring electrons; e represents an integer 0 or 1; Time represents a group which undergoes reaction triggered by the cleavage from the carbon carrying R.sup.3 and R.sup.4 to release PUG; t represents an integer 0 or 1; and PUG represents a photographically useful group.In a preferred embodiment, R.sup.1 represents an aromatic group, heterocyclic group or group represented by --Y.sup.1 --R.sup.5 in which Y.sup.1 represents a hetero atom or hetero atomic group and R.sup.

Abstract: A toothed belt power transmission system having a belt tooth configuration and pulley groove configuration providing for clearances between the belt tooth root and pulley groove outer surface, and between the belt tooth tip surface and pulley groove inner surface. A power transmitting surface on a midportion of the tooth has facial engagement with a confronting sidewall surface at the midportion of the pulley groove side surface. Locations of the centers of the different arcuate surfaces of the pulley tooth and belt groove for providing the extended life, low noise operation of the drive are disclosed. A number of different constructions embodying the invention are disclosed.

Abstract: Disclosed is a device for positioning an injector in its circumferential direction so that a plurality of nozzle holes formed at one end of the injector connected at the other end to a delivery pipe in an internal combustion engine can be accurately directed toward corresponding intake ports respectively. The device comprises a clip non-rotatably mounted on part of the delivery pipe, and the clip includes retaining portions extending along diametrically opposite wall portions of the injector and having confronting projections adapted to engage mating holes bored in the diametrically opposite wall portions respectively of the injector thereby positioning the injector.

Abstract: A device for treating fine particles is provided which comprises a plural number of reaction chambers for providing reaction fields different from each other provided along the flow pathway on the downstream side of a nozzle which jets out fine particles in a beam. The device may be provided with a chamber for a starting material for forming fine particles. The nozzle may be a convergent-divergent nozzle.

Abstract: Disclosed herein are a resin composition comprising 5 to 95% by weight of a vinylidene chloride resin and 5 to 95% by weight of a polyamide resin having a low crystalline melting point of not higher than 210.degree. C. and a molded product of said resin composition.The molded product of the present invention shows a molded product excellent in gas-barrier property and impact strength at low temperature, particularly a film, sheet or container.Among the resin compositions of the present invention, since the composition having 60 to 95% by weight of vinylidene chloride resin is particularly rich in gas-barrier property, it is suitable for packaging foods, and since the composition having more than 40% by weight and not more than 95% by weight of polyamide resin is excellent particularly in impact strength at low temperature, it is suitable as the packaging material for use at an extremely low temperature.

Abstract: A method of neutralizing an accumulated charge on a surface of a specimen which is examined in a scanning electron microscope (SEM) or a scanning ion microprobe mass analyzer (IMA), utilizes an electrically conductive thin film deposited on a part of the specimen surface. The charge is due to irradiation by a primary charged particle beam from the SEM or IMA. The thin film is made conductivity with a specimen mount mounting the specimen, and the irradiating range of the primary beam covers at least a part of the thin film. Thus, the accumulated charge can be neutralized, thereby a resolution of the SEM being improved due to applying higher accelerating voltage for the primary beam, and measured data of higher reliability being obtained in the IMA.

Abstract: A monitor system for a multiplex equipment, comprising a multiplexing unit for multiplexing low speed group input signals of plural channels into a high speed group output signal and a demultiplexing unit for demultiplexing a high speed group input signal into low speed group output signals of plural channels, wherein the high speed group output signal and the low speed group input signals on one hand and the high speed group input signal and the low speed group output signals on the other hand are monitored through comparison on the basis of the low speed group signal. When discrepancy is detected in the comparison between the high speed group output signal and the low speed group input signal in a certain channel of the low speed group signal in the course of monitoring the multiplex unit, the comparison between the high speed input signal and the low speed output signal is performed in a different channel of the low speed group signal for monitoring the demultiplex unit.