Abstract: A process for producing an insulating twisted electric wire having a reduced overall diameter with an insulating coating of high quality. The insulating coating has a thickness in a range of 3 to 100% of the radius of a smallest circle circumscribing the assembled set of twisted conductors. The insulating coating is formed by two or more cycles of coating and curing an insulating paint. Preferably, a bottom layer of the insulating coating is formed by applying a heat-curable insulating paint with a felt applicator or with a roller coating device. The heat-curable insulating paint should have a viscosity of not more than about 300 cps at 30.degree. C.

Abstract: A method for forming a conductive graphite film comprises the steps of forming a carbon film on substrate material heated to 700.degree. C. or higher through a plasma discharge using hydrocarbon gas as raw material and subjecting the film to heat treatment at temperatures exceeding 1,500.degree. C.

Abstract: Chalcogenide suboxide, particularly tellurium oxides TeOx, are possible to reversibly change optical characteristics by changing power of irradiating light to repeat recording and erasure.If the TeOx is x<1, high sensitivity is obtained but the characteristic of film is greatly deteriorated due to the environment.In accordance with this invention there is proposed a film which can be used as an optical recording medium having a high sensitivity and a high stability under the conditions that a partial pressure of oxygen is in the range from 1.times.10.sup.-4 -9.times.10.sup.-3 Torr and a high frequency power for forming a plasma in the range of 50-500 W and wherein the TeOx film is formed by metal tellurium vapor passing through a plasma of oxygen gas.

Abstract: The rays of the UV-radiation source (2) are directed on to the coated substrate (1) by a partially transmissive mirror (3). The heat-bearing IR-rays pass through the mirror in a straight line and are possibly absorbed by a cooling means. In that way, the surface temperature at the substrate can be greatly reduced.

Abstract: A flame spray material for producing a thermally shock and erosion resistant ceramic coating is comprised of a homogeneous ceramic composition formed of zirconium oxide, yttrium oxide and titanium oxide. The composition is preferably in the form of composite particles each of which contains a plurality of subparticles of each of the oxide constituents bonded with an organic binder.

Abstract: A method for the formation of a light-shield coat on a peripheral area of an optical lens other than the effective aperture area, which method is constituted by the steps of mounting the lens on a rotatable lens support means effective to rotate the lens about the optical axis thereof with the peripheral area positioned exteriorly of the lens support means, applying to the peripheral area of the lens a photo-setting, black-colored light shielding paint capable of hardening when exposed to ultraviolet rays to form the light-shield coat on the peripheral area of the lens, and radiating ultraviolet rays onto the peripheral area of the lens, while the latter is rotated, to cause the light-shield coat to harden.

Abstract: The present invention provides a method for reinforcing a substrate, which includes the step of coating at least a portion of the surface of the substrate with a layer of material that is curable by a high-energy-radiation. The coating material is cured with a suitable source of the high-energy-radiation to form a reinforcement layer affixed to the substrate. The reinforced substrate is particularly useful in the attachment zone of a refastenable, pressure-sensitive tape closure systems.

Abstract: A substrate introducing chamber, a reaction chamber and a substrate removing chamber are sequentially arranged with a shutter between adjacent ones of them. One or more substrates are mounted on a holder with their surfaces lying in vertical planes and carried into the substrate introducing chamber, the reaction chamber and the substrate removing chamber one after another. In the reaction chamber, a material gas is guided by gas guides to flow along the substrate surfaces in a limited space in which the substrates are disposed. The material gas is ionized into a plasma through the use of high-frequency energy obtained across a pair electrodes. The line of electric force of the high-frequency energy is directed along the substrate surfaces. By ionization of the material gas into the plasma, a non-single-crystal layer is formed, by deposition, on each substrate. At this time, the substrates are floating off the high-frequency energy source.

Abstract: A method and apparatus for coating non-woven and other porous webs and the like with controlled or negligible penetration into the pores by subjecting a coating carried by a surface to electron beam radiation before laminating the web to the surface carrying the coating and with a radiation dose that only partially cures the coating into a soft or tacky state such that the laminating will effect surface spreading adhesion to the web with controlled or substantially no penetration into the pores, and thereafter subjecting the laminated web and partially cured coating to greater electron beam radiation fully to cure the coating.

Abstract: A substrate introducing chamber, a reaction chamber and a substrate removing chamber are sequentially arranged with a shutter between adjacent ones of them. One or more substrates are mounted on a holder with their surfaces lying in vertical planes and carried into the substrate introducing chamber, the reaction chamber and the substrate removing chamber one after another. In the reaction chamber, a material gas is guided by gas guides to flow along the substrate surfaces in a limited space in which the substrates are disposed. The material gas is ionized into a plasma through the use of high-frequency energy obtained across a pair electrodes. The line of electric force of the high-frequency energy is directed along the substrate surfaces. By ionization of the material gas into the plasma, a non-single-crystal layer is formed, by deposition, on each substrate. At this time, the substrates are floating off the high-frequency energy source.

Abstract: A method for manufacture of gate electrodes formed of double layers of metal silicides having a high melting point and doped polycrystalline silicon. The polycystalline silicon is deposited in undoped fashion before the metal silicide and the doping of the silicon is obtained through the production of the source/drain-zones through ion implantation and a subsequent high temperature step. The method permits the problem-free manufacture of polycide-gates with n.sup.+ - and p.sup.+ -polysilicon on a chip without increased technological expense. Planarization is facilitated through the thin gate layers. The method is used in the manufacture of highly integrated CMOS-circuits.

Abstract: A method of plating a pattern of metal (e.g. copper or nickel) on a dielectric surface, i.e. surface of a dielectric material such as a synthetic resin or ceramic. The method comprises the preliminary step of masklessly treating the dielectric surface to selectively activate preselected areas thereof so that the dielectric surface in contact with a priming solution becomes catalytic, and thereby receptive to electroless metal deposition, selectively at those areas. The treated dielectric surface is contacted with an electroless plating solution to allow metal therefrom to auto-reductively deposit selectively at those catalized areas, thereby forming the pattern of metal desired on the dielectric surface.

Abstract: A method of treating a silicon nitride film formed by plasma deposition and deposited on a substrate, which comprises: (1) irradiating the silicon nitride film, and (2) heating the silicon nitride film during the irradiating.

Abstract: An apparatus is provided for curing a coating applied to an optical fiber. An elongated ultraviolet lamp and the optical fiber emerging from the coater are located at focii of an elliptical mirror which focuses the ultraviolet energy onto the coated fiber. The fiber is surrounded by a cylindrical chamber that is transparent to ultraviolet light. The chamber includes a jacket through which there flows a fluid which absorbs infrared energy. A cooling gas flows from a annular slot located at the bottom end of the chamber. The slot is so angled that gas flowing therefrom is directed upwardly and inwardly toward the coated fiber so that there exists within the chamber a recirculating flow of cooling gas. This enables the cooling gas to repeatedly absorb heat from the coated fiber and give up that heat to the chamber wall which is cooled by the fluid.

Abstract: A substrate is treated for forming a thin film on the surface of the substrate to obtain a hard layer adhering to the substrate surface. For this purpose the substrate is placed in a metal vapor atmosphere and simultaneously bombarded by metal or nonmetal ions which are implanted into the substrate while the metal vapor atmosphere is also being ionized.

Abstract: Disclosed is a method of producing implantable prosthetic devices, e.g., tubular vascular prostheses having a substantially non-thrombogenic inside surface and a biocompatible outside surface. The method involves deposition onto an elongate substrate, e.g., a porous tubular substrate, of a fluorine-containing coating by inducing glow discharge progressively along the length of a tubular reaction vessel. A polymerizable fluorine-containing gas is flowed through the tubular substrate and a portion of the gas migrates radially to traverse the pores of the substrate. An RF field is applied to successive volumes of the gas within the vessel and tube. A substantially non-thrombogenic fluorinated coating with a first fluorine to carbon ratio deposits and bonds to the inside surface of the substrate, and a fluorinated biocompatible cross-linked coating with a lower F/C atomic ratio than the inside coating deposits and bonds to the outside surface of the substrate.

Abstract: A method and apparatus is disclosed to allow the frequency adjustment of a crystal resonator sealed in a housing. The housing includes a transparent area which has plating material deposited thereon. The plating material is vaporized by a laser beam which sprays onto the crystal resonator thereby adjusting the operating frequency. The laser beam is scanned over the transparent area until an effective amount of plating material has been vaporized to adjust the frequency of the crystal resonator.

Abstract: An improved process for depositing an oxide layer on a substrate by exposing the substrate to a selected vapor phase reactant and an oxygen-containing precursor comprising nitrous oxide mixed with molecular oxygen in a predetermined ratio, in the presence of radiation of a selected wavelength. The radiation causes the direct dissociation of the oxygen-containing precursor to form neutral oxygen atoms that react with the vapor phase reactant and form the oxide, which deposits as a layer on the substrate. The rate of reaction to form and deposit the oxide layer is enhanced by the mixing of molecular oxygen with nitrous oxide in the precursor.

Abstract: A process for hardening the surface of a metal body in which the surface is first bombarded with ions capable of occupying interstitial sites in its crystal lattice, then a coating of a reactive metal is deposited on the surface, and finally the coating is bombarded with ions which will react with it to form a hard material such as a carbide or nitride. The bombardment is continued until the hard material has become embodied in the surface by means of radiation enhanced diffusion.

Abstract: Hard to simulate, readily distinguishable from counterfeits, optical interference authenticating devices are provided by depositing two coatings on a substrate, each coating comprising at least one optical interference layer, the material of each layer being selected so that the two coatings together and separately have different spectral reflectance and spectral transmittance characteristics at different angles of incidence of light thereon. The substrate may be, for example, a polyester film and a first one of the coatings is sufficiently radiation absorbing of, say, infrared radiation that at least one portion of that coating can be removed by an infrared laser beam through, for example, a mask to provide a readily distinguishable pattern on the substrate.