Patents Examined by M. N. Lateef
-
Patent number: 4792781Abstract: A chip resistor having configuration and dimensions of high precision and capable of operating with high reliability. The chip resistor includes end electrodes deposited on both side end surfaces of an insulating substrate according to a thin film deposition technique and integrally formed into a substantially C-shape so as to continuously and thoroughly cover the side end surfaces of the substrate. A resistance element may be formed according to either a thick film deposition technique or a thin film deposition technique. Also, a method for manufacturing such a chip resistor is provided.Type: GrantFiled: February 17, 1987Date of Patent: December 20, 1988Assignee: TDK CorporationInventors: Tetsuo Takahashi, Eisaku Miyauchi, Masayuki Yoshida, Shunichi Kumagai, Akio Sasaki
-
Patent number: 4785279Abstract: The disclosure relates to integrated circuit resistors and matched resistor pairs wherein each resistor is split into plural segments, each segment having a separate field plate thereover, each segment having the field plate associated therewith connected to the non-common node thereof. In the case of the matched resistor pair, the interconnections between the segment of each resistor overlap. The segments are preferably substantially rectangular in shape with the major axes of all segments parallel to each other.Type: GrantFiled: December 12, 1986Date of Patent: November 15, 1988Assignee: Texas Instruments IncorporatedInventor: Alan T. Wetzel
-
Patent number: 4752672Abstract: An electrical heating device comprises a substrate, a pair of parallel, spaced apart elongated conductors extending longitudinally of the substrate, and a semi-conductor pattern carried on the substrate and electrically connected to and extending between the conductors. The semi-conductor pattern produces a thermal image for an infrared target. In some embodiments, the thermal image is irregular or circular in shape and the semi-conductor pattern includes a plurality of transversely-spaced bars having relatively wide portions outside, and relatively thin portions within, the area producing the thermal image.Type: GrantFiled: December 23, 1986Date of Patent: June 21, 1988Assignee: Flexwatt CorporationInventor: Frederick G. J. Grise
-
Patent number: 4749981Abstract: A resinous resistor made of a blend of a thermoplastic non-polar resin, a thermoplastic polar resin, graphite and carbon black. The volume inherent resistance value of the resistor can be precisely controlled to a predetermined value. The resistor is uniform in resistance.Type: GrantFiled: October 31, 1986Date of Patent: June 7, 1988Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Hiroshi Yui, Michiya Okamura, Michio Ohmori
-
Patent number: 4677418Abstract: An ignition cable in which a thin tape or film of ethylene terephthalate is wrapped tightly around an inner layer of rubber insulation, coaxial with the core and inside the outer insulating jacket.Type: GrantFiled: November 28, 1984Date of Patent: June 30, 1987Assignee: Carol Cable CompanyInventor: William Shulver
-
Patent number: 4581512Abstract: A method and apparatus for the induction heating of a metallic material comprising the steps of forming the material into a desired shape, passing the formed material in heat exchange relationship with an induction heating means, passing the heated material directly from the induction heating means into the reaction chamber of a cooling shroud at a temperature above its lowest reaction temperature, delivering hydrogen gas and an inert gas into the reaction chamber of the cooling shroud to expose the material entering the reaction chamber to this gas mixture so as to reduce the surface oxidation on the material, cooling the material in the reaction chamber while exposing the surface thereof to the inert gas, and passing the material from the cooling shroud at a reduced temperature which is less than the reaction temperature of the material whereby the formation of heavy surface oxides is eliminated and the material has a workable hardness.Type: GrantFiled: July 10, 1984Date of Patent: April 8, 1986Assignee: MG Industries, Inc.Inventors: Kevin S. McGinn, Klaus A. Burckhardt, Werner Buecker
-
Patent number: 4568810Abstract: A microwave oven with a microprocessor control which contains stored recipe information. The user enters food type, quantity to be cooked, and size or doneness desired. Data for cooking a large number of different foods may be stored. The specific food item to be cooked is user selected by touching and holding one of ten food category pads. Food items within the category selected then "scroll" through an alphanumeric display. The item shown in the display when the food pad is released is the one selected for cooking. Following food selection, the user is prompted, via the alphanumeric display, to enter such additional data as quantity, size and doneness desired.Type: GrantFiled: January 17, 1984Date of Patent: February 4, 1986Assignee: The Tappan CompanyInventor: Silas E. Carmean
-
Patent number: 4567345Abstract: A process for the in-line inspection of the depth of a weld carried out by a welding beam pulse in which around its impact point on a workpiece, the beam pulse produces a welding plasma wherein, only during the emission of a welding beam pulse, at least one selected monochromatic emission line of the welding plasma is optically collected from the workpiece. The energy of said lines is converted into analog electrical signals and those signals are digitally processed with the resulting signals being compared with reference signals to produce an indication of the weld depth. Apparatus for performing this process is also disclosed.Type: GrantFiled: December 12, 1983Date of Patent: January 28, 1986Assignee: Commissariat a l'Energie AtomiqueInventors: Bernard Bachet, Jean Daguet, Louis Dujardin
-
Patent number: 4567352Abstract: A flashlight-radiant apparatus is constructed of a housing defining an object-handling space and an irradiation space located adjacent to the object-handling space, a plurality of flash discharge lamps provided side by side in an upper part of the irradiation space, a gas-discharging member provided in the upper part of the irradiation space for controlling the atmosphere of the housing, and an object-supporting table movable reciprocally between the object-handling space and the irradiation space in the housing and equipped with built-in subsidiary heating. An object, for example, a silicon wafer is preheated on the object-supporting table while the object-supporting table is located in the object-handling space. The flashlight-radiant apparatus has a simple structure, enjoys a high level of handling safety, assures long service life for its flash discharge lamps, and is suitable particularly for annealing semiconductor wafers.Type: GrantFiled: February 22, 1984Date of Patent: January 28, 1986Assignee: Ushio Denki Kabushiki KaishaInventors: Yoshiki Mimura, Tetsuji Arai, Satoru Fukuda