Abstract: An oxide superconducting thin film formed by laser ablation comprises a matrix formed of c-axis oriented superconducting phases and foreign phases which are different in crystal orientation from the matrix. In order to improve critical current density of the oxide superconducting thin film, preferably selected are such conditions that the size of each superconducting phase in its a-b plane is not more than 0.1 .mu.m in diameter, the size of each superconducting phase along its c-axis direction is equal to the thickness of the oxide superconducting thin film, the foreign phases at least partially pass through the oxide superconducting thin film along the direction of thickness, the size of each foreign phase is at least 0.01 .mu.m and not more than 5 .mu.m in diameter, each foreign phase has an a-axis or a c-axis perpendicularly oriented with respect to the major surface of the oxide superconducting thin film, and the like.

Abstract: Disclosed herein is a method of and an apparatus for fabricating an oxide superconducting wire which comprises a tape-type long base material and an oxide superconducting film formed thereon. The oxide superconducting film is formed by laser ablation of applying a laser beam (2) onto a target (4) while translating a long base material (6) along its longitudinal direction and depositing atoms and/or molecules scattered from the target (4) on the base material (6).

Abstract: In order to enable formation of a smooth and dense oxide superconducting film with no clear appearance of grain boundaries in a fine structure even at a high film forming rate, a laser ablation method is employed to apply a laser beam 2 to a target 1 containing components of an oxide superconductive material and deposit particles, which are thus scattered from the target 1, on a substrate 3, while gaseous oxygen is supplied from a gaseous oxygen inlet 7 toward laser plasma 6, which is generated by the application of the laser beam 2.

Abstract: An improvement in a process for manufacturing a superconductor, characterized by irradiating a material composed of compound oxide by one of ion beams selected from oxygen ion beam, inert gas ion beams and an ion beam consisting of a mixture of oxygen gas and inert gas to convert said material into a superconductor. When a focused ion beam is directed onto desired areas on said film layer, the areas irradiated by the ion beam are converted to a superconductor in a form of a superconducting circuit.

Abstract: A laminated ceramic superconductor which comprises at least two layers of ceramic superconductor and a stabilizing metal layer interposed between said ceramic superconductor layers, which has improved flexibility and increased critical current density.

Abstract: When an oxide superconducting thin film is formed on a substrate by a vapor phase method such as laser ablation, for example, a plurality of grooves are formed on the substrate by photolithography or beam application in the same direction with an average groove-to-groove pitch of not more than 10 .mu.m, so that the oxide superconducting thin film is formed on a surface provided with such a plurality of grooves. Thus promoted is growth of crystals of the oxide superconducting thin film in parallel with the grooves, whereby respective directions of a-axes and c-axes are regulated to some extent. This improves critical current density of the oxide superconducting thin film.

Abstract: A superconducting ceramics elongated body comprising a flexible ceramics elongated substrate and an oxide ceramics superconducting layer formed at least on a part of the surface of the ceramics elongated substrate to longitudinally extend along the ceramics elongated substrate. The superconducting ceramics elongated body further comprises a protective layer of ceramics containing a nitride, which is provided to at least cover the surface of the superconducting layer exposed on the ceramics elongated substrate. A method of manufacturing a superconducting ceramics elongated body by forming a longitudinally continuous superconducting layer on at least a part of the surface of a flexible ceramics elongated substrate. The superconducting layer is formed on the elongated substrate by a sol-gel method, a coating/sintering method, evaporation under oxygen ions, deposition from a fluoride solution or oxidation after application of corresponding fluorides.

Abstract: A thin film of an oxide superconductor having a homogeneous composition and less oxygen defects is produced by independently vaporizing at least one material selected from the group consisting of the elements of Ia, IIa and IIIa groups of the periodic table and their compounds and at least one material selected from the group consisting of the elements of Ib, IIb and IIIb groups of the periodic table and their compounds in the presence of molecular oxygen and depositing the vaporized materials together with oxygen on a substrate to form a thin film of the oxide superconductor.

Abstract: A thin film of an oxide superconductor having a homogeneous composition and less oxygen defects is produced by independently vaporizing onto a substrate at least one material selected from the group consisting of the elements of Ia, IIa and IIIa groups of the periodic table and their compounds and one material selected from the group consisting of Cu and its compounds and irradiating the substrate with oxygen ions and depositing the vaporized materials together with oxygen on the substrate to form the thin film of the oxide superconductor.

Abstract: A crystalline metal halide optical fiber having a two or a three layer structure is provided. The core consists of relatively small crystals. A crust surrounds the core and has the same composition but consists of relatively large crystals. Optionally, an optical outer crust surrounds the inner crust and has a different composition from the inner crust but has generally the same sized crystals. The differing crystal sizes can be produced from a preform by extruding a crystal at a low uniform temperature at a relatively high speed.

Abstract: An optical fiber connector comprises a sleeve and a receptacle. The sleeve has a front cylindrical surface and a rear conical surface formed in coaxial relation with the front cylindrical surface. The receptacle has an inner cylindrical surface and an inner conical surface formed in coaxial relation with the inner cylindrical surface. In coupling state the front cylindrical surface of the sleeve fits in the inner cylindrical surface of the receptacle, and the rear conical surface of the sleeve fits in the inner conical surface of the receptacle. The conical surfaces forbid radial displacements of the sleeve. The cylindrical surfaces determine the locations of the centers.

Abstract: An information display apparatus for a sewing machine is disclosed which comprises an information memory means storing various instructing information on how to use the sewing machine, explanatory information explaining the method of sewing each of a plurality of stitch patterns and the like, an information selecting means, a liquid crystal display of multirow-multicolumn dot-pattern type, and a display controlling means, and is constituted so as to be able to display the above-mentioned various information by characters and images.

Abstract: A method of producing a superconducting circuit by forming a film having a superconducting phase on a substrate and applying a laser beam to a part of the superconducting phase to cause transition of the part of the superconducting phase into a non-superconducting phase.

Abstract: A crystalline metal halide optical fiber having a two or a three layer structure. The core consists of relatively small crystals. An inner crust surrounds the core and has the same composition but consists of relatively large crystals. An optical outer crust surrounds the inner crust and has a different composition from the inner crust but has generally the same sized crystals. The differing crystal sizes can be produced from a preform by extruding a crystal at a low uniform temperature at a relatively high speed.

Abstract: A light transmission apparatus in which light from a laser may be transmitted through an optical conducter. Dry air may also be pumped through the optic conducter to remove matter from the vicinity of the light emitting end. A cover which is formed of a shape memory alloy is provided at the light emitting end of the conductor to open at a high temperature in response to incident light and close at a low temperature when the light stops.

Abstract: An optical fiber for transmission of high intensity infrared radiation comprising a core of a silver or thallium halide crystal, a first infrared transmitting layer 5 .mu.m thick of lead or barium fluoride and an overlying highly conductive metal film whereby both waveguide and radiation modes leaking out of the core are attenuated.

Abstract: Optimum sewing machine setting values for a plurality of stitch patterns to be adjusted by adjusting means, and display information data of messages explaining at least either the manner of sewing operation for the stitch patterns or methods of forming the stitch patterns are stored in a memory at addresses respectively corresponding to the stitch patterns. Relevant setting values are displayed when a stitch pattern is selected on a display unit and the indication of the setting values is changed for the indication of a message when a changeover member is operated.

Abstract: A sewing machine system is disclosed for accurately controlling the amount of supply of a needle thread to a thread take-up member from a thread supplying source in response to various conditions of sewing.The system controls supply and withholding of the needle thread with an accurate timing by putting an electrostrictive element into operation or non-operation in relation to a parameter signal on sewing conditions and a synchronizing signal derived from the timing of rotation of the arm shaft of sewing machine.

Abstract: An electrical junction system for automotive internal wiring has a wiring board provided with branching conductors formed by a multiplicity of bus bars on an insulation plate, the branching conductors being adapted to be connected to electric wires in a wiring harness to form branching electric circuits. The electrical junction system has a printed circuit board detachably mounted on the wiring board, the printed circuit board generally or inclusively carrying a plurality of circuits incorporating a multiplicity of function parts which are used semi-permanentally such as relays and associated control elements.

Abstract: A device for clamping an end portion of an optical fiber, including a cylindrical sleeve formed with an axially extending aperture for receiving the end portion of the optical fiber and at least one slit extending both radially from its outer side face to the aperture and axially through the sleeve along a plane containing an axis of the sleeve, and an adaptor. The outer side face of the sleeve is at least partly tapered into a tapered outer side face and the adaptor is formed with a tapered bore corresponding, in shape, to the tapered outer side face.