Abstract: A radio telephone system of the multi-channel access type using an empty channel selected from a plurality of channels for radio telephone communication of voice audio or data signals and a method of controlling such a radio telephone system. The method and apparatus can improve the data communication quality without reducing the number of available channels. A switching circuit is provided in at least one of the base unit and the radio telephone for changing the frequency characteristic of the signal to be transmitted when the signal is a data signal.

Abstract: A power supply device adapted to supply power to a pair of electrodes formed on opposite end surfaces of an ultrasonic vibrator. The device has a circuit layer arranged on a flexible base. The circuit layer has a pair of supply electrodes arranged at its one longitudinal end and a pair of end connections arranged at the other longitudinal end. A pair of conductive layers electrically connect the supply electrodes and the end connections, respectively. Each supply electrode has an inner surface of substantially the same shape as the end surface of the ultrasonic vibrator, the inner surface being joined electrically and mechanically with the electrode of the ultrasonic vibrator. The flexible base has an electrode base covering an entire outer surface of each of the supply electrodes, and a circuit base holding the conductive layers. A shield layer may be disposed on the flexible base in order to screen electromagnetic radiation from the circuit layer.

Abstract: Disclosed herein is an air spoiler device which comprises a base member; two rail members secured to the base member and extending in parallel with each other; two sliders slidably and respectively engaged with the rail members, so that each slider is slidable forwardly and rearwardly along the corresponding rail member; two supporting leg units respectively mounted on the sliders; a spoiler fin mounted on the two supporting leg units; and a drive for moving the sliders forwardly and rearwardly along the rail members.

Abstract: A compound semiconductor integrated circuit device has a region implanted with an impurity for forming a carrier capture level in an element isolating region in a semi-insulating compound semiconductor substrate. The region includes at least a first region of relatively low implantation concentration of the impurity and a second region of relatively high implantation concentration of the impurity.

Abstract: Diurea Derivatives represented by the following general formula and salts thereof: ##STR1## The above compounds inhibit acyl-coenzyme A chloresterol acyl-transferase (ACAT enzyme), and thereby control the accumulation of cholesterol ester to the smooth muscle of arterial wall in the blood vessel.

Abstract: A coupler is disclosed which is constructed of metal. The coupler comprises a cylindrical major part having a first cylindrical bore formed therethrough, the cylindrical major part being formed about its cylindrical outer surface with an externally threaded portion and a polygonal enlarged head; and a collar part having a second cylindrical bore formed therethrough, the second cylindrical bore being greater in diameter than the first cylindrical bore. The cylindrical major part and the collar part are coaxially arranged and integrated with each other to constitute a monobloc cylindrical structure. In practical use, the second cylindrical bore can serve as a silencer.

Abstract: 3-Oxo-4-acyl or carbamyl-bicyclic aromatic and heterocyclic compounds as inhibitors of cyclooxygenase and lipoxygenase and useful as antiallergy and antiinflammatory agents.

Abstract: An electrophotographic plate-making quality matrix plate provided on an electroconductive substrate thereof with a photosensitive layer formed of an alkali-soluble binder resin containing an organic photoelectroconductive compound, which matric plate is characterized by the fact that said organic photoelectroconductive compound is a zinc phthalocyanine represented by the general formula I: ##STR1## wherein R is a --SZ group (where Z is a phenyl group, a phenyl group substituted with an alkyl group of 1 to 5 carbon atoms, or a naphthyl group), and said binder resin is a copolymer obtained by polymerizing a monomer mixture comprising (a) at least one compound selected from the group consisting of hydroxyalkyl acrylates and hydroxyalkyl methacrylates, (b) at least one copolymerizable unsaturated carboxylic acid, (c) at least one styrene compound, and (d) at least one compound selected from among acrylic esters other than said hydroxyalkyl acryaltes of (a).

Abstract: In a zoom lens system for use with a compact camera having a wide coverage of angles that comprises, in order from the object side, a first lens group having a positive focal length and which performs zooming by changing the distance beween the first and second lens groups, the said first lens group comprises, in order from the object side, a front subgroup 1F having a positive focal length, a diaphragm stop and a positive rear subgroup 1R with a small power, and the first lens in the front subgroup 1F is a negative lens, with the specific conditions.

Abstract: A number of embodiments of combustion chambers for direct cylinder injected engines wherein the combustion chamber has a recess surrounded by a squish area. The fuel injector is disposed so that it will spray into the recess against the wall rather than toward the squish area. Alternate spark plug locations are disclosed.

Abstract: A patterned decorative material is prepared by a method which comprises applying a thermosetting powder coating material to a base plate; melting of the thermosetting powder coating material by heating; simultaneously embossing the coating layer and the base plate while the melted thermosetting powder coating material has a gel fraction formed by a hardening reaction of 0 to 75 weight percent; and further heating to form a hardened coating on the base plate. The patterned decorative material is excellent in appearance, corrosion resistance, weathering resistance and abrasion resistance and is free from the defects of conventional steel plates coated with polyvinyl chloride and the like, such as formation of craze and loss of luster.

Abstract: A masking member presented herein comprises a sheet of a polystyrene foam provided with cutting guide lines so that said masking member consists of a plural number of units of the masking members surrounded with said cutting guide lines wherein said cutting guide lines are discontinuous and consist of a number of small grooves or short penetrating lines or small penetrating holes wherein the total length of said grooves or lines or holes is 20 to 80% of the length of said cutting guide lines. When said masking member is used, said sheet is easily and correctly broken along said cutting guide lines by hand to a piece consisting of one or more units of the masking member to have a proper size and shape corresponding with a part of an article which is necessary to be protected from a surface treatment.

Abstract: A porous slide bearing (1) made of a porous sintered compact (5) is impregnated with an oil or a lubricant (6) containing a thickening agent at a concentration of less than 3 percent by weight and in the outer surface area thereof with a lubricant (7) containing a thickening agent at a concentration of 3 percent by weight or more. Such a bearing can prevent leakage of lubricant owing to fluctuations in temperature.A method for producing a porous slide bearing includes the steps of homogenizing a lubricant to make the crystals contained therein into fine particles and to disperse them uniformly, and impregnating under vacuum said lubricant into pores in a porous slide bearing. This method makes it possible to improve the penetration of grease into the bearing, to lower its apparent viscosity and to improve the impregnating efficiency.

Abstract: In a method and an apparatus wherein carriers sensitized by an antibody or an antigen are caused to react to a specimen sample and the condensation of the carriers caused by the antigen-antibody reaction is optically detected by the use of flow cytometry, thereby measuring the antigen or antibody in the specimen sample, a plurality of kinds of carriers differing in optical characteristic are sensitized by different kinds of antibodies or antigens, respectively, whereby a plurality of kinds of antigens or antibodies in the specimen sample are measured at a time.

Abstract: A zoom lens system for use with a compact camera is disclosed which has a wide coverage of angles and which comprises, in order from the object side, a first lens group having a positive focal length and a second lens group having a negative focal length and which performs zooming by changing the distance between the first and second lens group. The first lens group comprises, in order form the object side, a subgroup 1a having a negative focal length and a subgroup 1b having a positive focal length. The subgroup 1a is composed of at least two lens elements including a negative first lens element on the object side and a meniscus lens element on the image side which has a concave surface directed toward the object with a large curvature and a convex surface directed toward the image with a large curvature. The subgroup 1a further satisfies the following condition:-0.5<f.sub.1G /f.sub.1 .ltoreq.0 (1)wheref.sub.1G : the focal length of the first lens group; andf.sub.

Abstract: A protection layer for protecting a silicon dioxide layer formed on a silicon substrate of a semiconductor device. The protection layer protects the silicon dioxide layer from being reacting with a reactant gas used in a chemical vapor deposition method performed for forming a silicon carbide layer. The silicon carbide layer is to be a wide energy band gap emitter layer of the semiconductor device. The protection layer is formed on the silicon dioxide layer, and the silicon carbide layer is formed in an active region formed on the silicon substrate in an aperture provided by etching the protection layer and the silicon dioxide layer. The protection layer is made of material which is non-reactive with the reactant gas consisting of, for example, trichlorosilane and methane. The protection layer is, for example, titanium nitride formed by a sputtering method, or nitrided silicon oxide formed by heating the silicon dioxide layer.

Abstract: A multiple color image forming apparatus, wherein colors or kinds of copying paper contained in paper feed cassettes as well as colors of developers contained in a plurality of developing devices are detected to prevent image forming, which is indistinguishable due to mismatching between the color or kind of copying paper and the color of developer, and the developing device containing the developer of suitable color for the color or kind of copying paper is automatically selected in response to the detected result of the color or kind of copying paper and the color of developer to prevent misforming of the image and to improve the operation easiness.

Abstract: N-(2-methoxyethyl)-N-isopropylacrylamide is a novel compound. The polymer obtained by polymerizing this novel compound is a novel hydrophilic-hydrophobic thermally reversible type macromolecular compound having a transition temperature in the range of 12.degree. C. to 14.degree. C.

Abstract: A band limiter connected between output lines of a differential amplifier. The band limiter includes a bipolar transistor connected to the output lines via capacitors, and includes a temperature detecting device for detecting ambient temperature. Transistor capacitance is connected to or disconnected from the output lines in response to a bandwidth limiting signal. The transistor constitutes a low-pass filter functioning as a band limiter when it is closed, whereas it functions as a variable capacitor which varies its capacitance in accordance with the ambient temperature when it is opened. The high-band frequency characteristic of the differential amplifier is temperature compensated by the transistor functioning as a variable capacitance.