Bundle Conductors Patents (Class 174/128.2)
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Patent number: 12081077Abstract: In a rotating electric machine, a field element includes: a circular annular magnet portion that includes magnetic poles of which polarities alternate in a circumferential direction; and a cylindrical magnet holding portion where the magnet portion is fixed on an inner circumferential surface of the magnet portion. An armature is arranged to oppose the magnet portion on an inner side in a radial direction of the magnet portion. The magnet portion includes circular-arc-shaped magnets arranged in an array in the circumferential direction. In each magnet, both end surfaces in the circumferential direction are along the radial direction and in contact with a magnet adjacent in the circumferential direction. The magnet holding portion is reduced in size such that, in a state where the magnets are arrayed in the circumferential direction, an outer circumference of the magnets is reduced from an outer side toward an inner side in the radial direction.Type: GrantFiled: April 30, 2021Date of Patent: September 3, 2024Assignee: DENSO CORPORATIONInventors: Yuki Takahashi, Kazuya Iwase, Hidemasa Otsubo
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Patent number: 10633756Abstract: A plated fiber that is obtained by applying a metal plating onto a fiber having an elongation percentage which is more than or equal to 1% and less than or equal to 10%. An elongation percentage of the metal plating is higher than the elongation percentage of the fiber. A carbon fiber wherein the surface oxygen amount as a value obtained by dividing an O1S peak intensity measured by X-ray photoelectron spectroscopy by a C1S peak intensity measured by the spectroscopy is more than or equal to 0.097 and less than or equal to 0.138.Type: GrantFiled: March 30, 2016Date of Patent: April 28, 2020Assignee: YAZAKI CORPORATIONInventors: Hiroki Kondo, Satoru Yoshinaga, Yusuke Yoshikawa
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Patent number: 9118225Abstract: A rotary electric machine includes a stator having an open slot configuration and a plurality of stator poles with a coil positioned about each stator pole. Each coil has a plurality of electrically conductive wires defining a group of wires and the group of wires is wrapped generally around a stator pole to define a plurality of turns. At least a portion of the group of wires is twisted, and the portion of the group of wires has between approximately 1 and 5 twists per turn. A method of fabricating a stator assembly is also disclosed.Type: GrantFiled: August 24, 2012Date of Patent: August 25, 2015Assignee: Caterpillar Inc.Inventor: Rodwan T. Adra
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Patent number: 8975523Abstract: A conductive cable for reducing the power losses in components, such as inductors and transformers. The conductive cable includes multiple strands that each include an inner conductor and an outer insulating layer. The conductive cable includes strands of multiple cross-sectional areas (multiple gauges), such that the power losses associated with the skin effect may be reduced. The cross-sectional areas of the strands of the conductive cable may be selected dependent upon the frequency content of the current that they are intended to carry. In the case of a PFC boost converter, the various cross-sectional areas of the strands may be selected to carry the harmonics of and AC power source, as well as higher frequency current caused by a switch associated with the PFC boost converter.Type: GrantFiled: May 28, 2009Date of Patent: March 10, 2015Assignee: Flextronics AP, LLCInventor: Arturo Silva
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Patent number: 8969728Abstract: A cable includes a conductor. A plurality of inner armor wires is wrapped around the conductor. At least some of the plurality of inner armor wires have non-circular and non-rectangular cross-sectional shapes. A plurality of outer armor wires are wrapped around the inner armor wires. At least some of the plurality of outer armor wires have non-circular and non-rectangular cross-sectional shapes.Type: GrantFiled: August 18, 2009Date of Patent: March 3, 2015Assignee: Halliburton Energy Services, Inc.Inventors: Daniel F. Dorffer, Lawrence Charles Rose
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Publication number: 20140197709Abstract: An assembly conducting wire for a rotary electric machine winding includes a plurality of bundled wires, the plurality of wires being twisted in a circumferential direction of the assembly conducting wire, and the plurality of wires being welded together at a predetermined distance.Type: ApplicationFiled: January 8, 2014Publication date: July 17, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Ayako HASEGAWA
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Patent number: 8692120Abstract: The present invention relates to an electrical control cable of the type comprising a core having a plurality of polymer filaments, a plurality of strands of conductor material extending in the longitudinal direction of said core, an outer insulating sheath. According to the invention, said strands are distributed uniformly and concentrically over the periphery of said core, in contact with one another in pairs and in contact with said core, and the filaments of said core are secured to one another to form a non-metallic unitary structure that is obtained by organizing said filaments into a plurality of subassemblies, the filaments in any one subassembly being twisted together helically, the subassemblies in turn being twisted with one another to form an overall helix. Advantage: the cable uses a limited number of copper strands while guaranteeing that crimping operations are reliable.Type: GrantFiled: July 9, 2008Date of Patent: April 8, 2014Assignee: NexansInventors: Francis Debladis, Laurent Tribut, Stéphane Morice
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Patent number: 8673416Abstract: Disclosed herein is an electrical component including a substrate comprising an electroconductive filler in a first polymeric binder, and a coating layer adhered to at least a portion of the substrate surface, the coating layer comprising a nanostructured electroconductive particulate dispersed in a polymeric binder, such as an epoxy resin. A method of making the component also is disclosed, comprising obtaining a substrate containing an electroconductive filler in a polymeric binder, dispersing a nanostructured electroconductive particulate filler in a liquid that includes a solvent and/or a reactive diluent to form a dispersion, mixing the dispersion with a liquid resin to form a coating mixture, applying the coating mixture to the substrate, and crosslinking the applied coating mixture to form the coated substrate.Type: GrantFiled: October 28, 2009Date of Patent: March 18, 2014Assignee: Xerox CorporationInventors: Joseph A. Swift, Stanley J. Wallace, Roger Bullock
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Patent number: 8598457Abstract: A flexible electrical line has at least one sensor element with two leads in a core, the leads made from insulated electrical conductors which are surrounded by a common outer casing of insulation material. The core is three phase leads of a conductor and insulation which are stranded together for energy transmission. The conductors of the leads are copper wires which surround a tension-proof central element in two layers with oppositely directed threading direction. The insulation of the leads is a cross-linked elastomer material applied by extrusion with a dielectricity number of at least 6.0 at room temperature. The unit, composed of leads and filler strands of the sensor element, is surrounded by a casing of an electrically conductive polymer material, and the core of the line is surrounded by a common inner casing produced by extrusion over which is arranged the outer casing.Type: GrantFiled: December 22, 2011Date of Patent: December 3, 2013Assignee: NexansInventors: Judith Schramm, Walter Winkelbauer, Christian Cornelissen, Smaeil Basiry, Heinz-Willi Hamacher
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Patent number: 8450612Abstract: A copper clad steel (CCS) wire is at least partially covered on its exterior to visibly distinguish the CCS wire from a pure/solid copper wire. A coating, such as tin, zinc or paint, covers at least portions of the CCS wire. The coating may be applied in strips, rings or a helix to identify the CCS wire as not be formed of solid copper. In the instance of a stranded CCS wire, one or more of the outer strands may be partially or entirely coated to give the overall stranded CCS wire a distinguishing outer structure.Type: GrantFiled: February 12, 2010Date of Patent: May 28, 2013Assignee: CommScope, Inc.Inventors: Robert McEllen, Paul Bedder, David Cady, James Lamb
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Patent number: 8299357Abstract: A support system for transmission lines includes a base plate, a securing assembly, and a supporting arm. The base plate is secured to the transmission line pole with the securing assembly. The supporting arm can include an insulating apparatus; the insulator apparatus of the supporting arm is adapted to provide a safe dielectric distance from the transmission power line and the transmission line structure, e.g., power pole. A first end of the supporting arm is carried by a mounting member and is connected to the transmission line pole via the base plate, while the second end can receive a conductor with a connector. The connector is adapted to secure a conductor, and is positioned at the second end of the insulator apparatus.Type: GrantFiled: June 29, 2010Date of Patent: October 30, 2012Assignee: The Southern CompanyInventor: William A. Holloman
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Patent number: 8217269Abstract: Devices and methods for electrical interconnection for microelectronic circuits are disclosed. One method of electrical interconnection includes forming a bundle of microfilaments, wherein at least two of the microfilaments include electrically conductive portions extending along their lengths. The method can also include bonding the microfilaments to corresponding bond pads of a microelectronic circuit substrate to form electrical connections between the electrically conductive portions and the corresponding bond pads. A microelectronic circuit can include a bundle of microfilaments bonded to corresponding bond pads to make electrical connection between corresponding bonds pads and electrically-conductive portions of the microfilaments.Type: GrantFiled: August 18, 2011Date of Patent: July 10, 2012Assignee: Raytheon CompanyInventors: Stephen C. Jacobsen, David P. Marceau, Shayne M. Zum, David T. Markus
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Patent number: 8178784Abstract: Pins comprising nanorods and attached members are provided. Two exemplary embodiments of pins are such that: the nanorod is partially embedded in the attached member; and one end of the nanorod is attached to the surface of the attached member. In some embodiments, the attached member is an optical handle. The use of the pin in a microscope to probe objects of interest is further provided, and enables a means of acquiring optical and topographical information about an object of interest.Type: GrantFiled: July 19, 2009Date of Patent: May 15, 2012Inventor: Charles Wesley Blackledge
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Publication number: 20120043936Abstract: This specification relates to a charging, securing and monitoring system for hand-held electronic devices such as cell phones, BlackBerry's, PDA's, cameras, or the like and the components therefore. More particularly the teachings herein include a coaxial cable construction that permits securing and charging of said hand-held devices which are on display at a typical retailer. Further the cable may be accumulated on a unique recoiler assembly at one end of the coaxial cable and engages a unique holding device proximate the other end thereof.Type: ApplicationFiled: April 23, 2010Publication date: February 23, 2012Applicant: RTF Research & Technologies, Inc.Inventor: Joel Ferguson
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Publication number: 20110247857Abstract: A conductor of an electric wire, and an insulated wire which are excellent in corrosion resistance and recyclability, of which the strength which is decreased by weight reduction and diameter reduction is improved. The conductor includes a strand which includes a first elemental wire made from pure copper and a second elemental wire made from a copper alloy. In the conductor, a cross-sectional area of the first elemental wire as a percentage of a cross-sectional area of the conductor is preferably within a range of 10 to 90%. Examples of the copper alloy include a Cu—Ni—Si alloy, and a copper alloy containing Sn, Ag, Mg, or Zn. The conductor may be compressed concentrically. The insulated wire is prepared by covering the conductor with an insulator.Type: ApplicationFiled: June 21, 2011Publication date: October 13, 2011Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.Inventors: Soichirou Tsukamoto, Jun Yoshimoto, Yasuyuki Otsuka, Akihiko Tanaka
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Patent number: 8026447Abstract: Devices and methods for electrical interconnection for microelectronic circuits are disclosed. One method of electrical interconnection includes forming a bundle of microfilaments, wherein at least two of the microfilaments include electrically conductive portions extending along their lengths. The method can also include bonding the microfilaments to corresponding bond pads of a microelectronic circuit substrate to form electrical connections between the electrically conductive portions and the corresponding bond pads. A microelectronic circuit can include a bundle of microfilaments bonded to corresponding bond pads to make electrical connection between corresponding bonds pads and electrically-conductive portions of the microfilaments.Type: GrantFiled: November 9, 2009Date of Patent: September 27, 2011Assignee: Raytheon Sarcos, LLCInventors: Stephen C. Jacobsen, David P. Marceau, Shayne M. Zurn, David T. Markus
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Patent number: 7861501Abstract: In one embodiment, an apparatus for applying a flexible, expandable sleeving over an elongated structure includes a first area for receiving the member and an elongated hollow conduit that receives the elongated structure within a hollow interior space thereof. The expandable sleeving is compressed and bunched and held in compression along an outer surface of the conduit. The apparatus also includes a second area that includes a pair of rollers that are disposed about one end of the conduit and are configured so that they contact the sleeving as it is paid out onto an outside of the elongated structure and prevent the compressed sleeving from suddenly releasing its stored energy and self-ejecting off of the conduit as the sleeving and bundle are mated and are moved away from the rollers.Type: GrantFiled: May 10, 2008Date of Patent: January 4, 2011Assignee: BTX Technologies, Inc.Inventor: Christopher J. Poulin
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Publication number: 20100273348Abstract: Disclosed is a flat signal transmission cable with bundling structure, including at least one flexible circuit. The flexible circuit includes a plurality of clustered flat cable components that are formed by slitting in a direction parallel to extension direction of the flexible circuit to impose free and independent flexibility for bending to each clustered flat cable component. At least one bundling structure is formed on a lateral side edge of a predetermined clustered flat cable component of the cluster section of the flexible circuit. The bundling structure forms a fastening section. When the clustered flat cable components of the cluster section of the flexible circuit are stacked to form a bundled structure, the bundling structure bundles the plurality of clustered flat cable components and is secured by being fastened by the fastening section.Type: ApplicationFiled: August 11, 2009Publication date: October 28, 2010Inventors: Chih-Heng Chuo, Gwun-Jin Lin, Kuo-Fu Su
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Publication number: 20100170697Abstract: A signal wire which at least comprises a flexible core and a metal layer is disclosed. The flexible core has a surface and a longitudinal direction, and the metal layer comprises a plurality of metal foil straps. The metal foil straps are directly and helically wound in parallel on the surface of the core to form a continuously, electrically conductive structure along the longitudinal direction. Thereby, the signal wire has both a decreased external diameter and decreased impedance.Type: ApplicationFiled: March 24, 2009Publication date: July 8, 2010Inventor: Rosa CHANG
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Patent number: 7750236Abstract: A support system for transmission lines includes a base plate, a securing assembly, and a supporting arm. The base plate is secured to the transmission line pole with the securing assembly. The supporting arm can include an insulating apparatus; the insulator apparatus of the supporting arm is adapted to provide a safe dielectric distance from the transmission power line and the transmission line structure, e.g., power pole. A first end of the supporting arm is carried by a mounting member and is connected to the transmission line pole via the base plate, while the second end can receive a conductor with a connector. The connector is adapted to secure a conductor, and is positioned at the second end of the insulator apparatus.Type: GrantFiled: January 9, 2008Date of Patent: July 6, 2010Assignee: The Southern CompanyInventor: William A. Holloman
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Patent number: 7719130Abstract: In a DC power transmission and distribution line, a power cable line for making it possible to easily supply power to various electric power machines used for operation of the line is provided. A power cable line includes a power cable (1g, 1r, 1p, 1m, 1n) for executing DC transmission and distribution, an AC superposing section 2 for superposing an AC component on the power cable, and a branch power supply section 3 for taking out power induced by the superposed AC component from the cable. The AC component is superposed on the power cable by the AC superposing section 2 and AC power together with DC power is transmitted to the power cable. The superposed AC component is taken out by the branch power supply section 3 provided in a midway point of the cable and is supplied to various electric power machines.Type: GrantFiled: October 31, 2005Date of Patent: May 18, 2010Assignee: Sumitomo Electric Industries, Ltd.Inventors: Masayuki Hirose, Ryosuke Hata
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Patent number: 7626123Abstract: Devices and methods for electrical interconnection for microelectronic circuits are disclosed. One method of electrical interconnection includes forming a bundle of microfilaments, wherein at least two of the microfilaments include electrically conductive portions extending along their lengths. The method can also include bonding the microfilaments to corresponding bond pads of a microelectronic circuit substrate to form electrical connections between the electrically conductive portions and the corresponding bond pads. A microelectronic circuit can include a bundle of microfilaments bonded to corresponding bond pads to make electrical connection between corresponding bonds pads and electrically-conductive portions of the microfilaments.Type: GrantFiled: December 11, 2006Date of Patent: December 1, 2009Assignee: Raytheon Sarcos, LLCInventors: Stephen C. Jacobsen, David P. Marceau, Shayne M. Zurn, David T. Markus
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Patent number: 7622681Abstract: An overhead cable including a plurality of element wires stranded to form a naked stranded cable, which has a cross-sectional shape of an equilateral polygon inscribed in a circle having a diameter of 18.2 mm to 38.4 mm as a fundamental cross-sectional shape, in which two sides of this equilateral polygon that are located at positions farthest from each other are outwardly projected, has two flat-plate-shaped projections corresponding to the two sides, wherein the number of angles of the equilateral polygon is set depending to the diameter of the circle.Type: GrantFiled: October 22, 2007Date of Patent: November 24, 2009Assignees: VISCAS Corporation, Kansai Electric Power Co., Inc.Inventors: Naoshi Kikuchi, Masao Kamiji, Teruhiro Yukino, Katsuhiro Fujimoto
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Publication number: 20080271910Abstract: An overhead cable including a plurality of element wires stranded to form a naked stranded cable, which has a cross-sectional shape of an equilateral polygon inscribed in a circle having a diameter of 18.2 mm to 38.4 mm as a fundamental cross-sectional shape, in which two sides of this equilateral polygon that are located at positions farthest from each other are outwardly projected, has two flat-plate-shaped projections corresponding to the two sides, wherein the number of angles of the equilateral polygon is set depending to the diameter of the circle.Type: ApplicationFiled: October 22, 2007Publication date: November 6, 2008Inventors: Naoshi KIKUCHI, Masao KAMIJI, Teruhiro YUKINO, Katsuhiro FUJIMOTO
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Patent number: 7228627Abstract: A manufacturing method is provided to form an overhead transmission cable having an elongated stranded steel core, and at least one layer of conductor wires generally encircling the stranded steel core. Each conductor wire includes a circumferentially extending, metallurgically bonded aluminum outer layer of at least 99.5 percent pure aluminum and having an IACS conductivity of at least 20.3 percent. In one embodiment, the steel conductors include a generally circular cross-section and an aluminum outer layer metallurgically bonded thereto, with the thickness of the aluminum outer layer being at least 10 percent of the overall radial dimension of the conductor.Type: GrantFiled: December 16, 2005Date of Patent: June 12, 2007Assignee: United States Alumoweld Co., Inc.Inventors: Hironori Yoshimura, Thomas J. Higham, Henry T. Jarboe, Jr.
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Patent number: 7180002Abstract: The invention describes a flexible multicore electrical cable with a central supporting member (3), several cores (1) that includes insulated fine-strand conductors and surround the supporting member (3), and a plastic sheath (5), wherein the central supporting member (3) includes a torsionally rigid steel cable (3a), which is provided with an outer layer of insulation (3b). The steel cable (3a) includes a core strand (6), a first course of several strands (7) stranded on the core strand (6), and a second course of several strands (10) stranded on the first course, wherein the direction of lay and/or the length of lay of the strands (10) of the second course is different from the direction of lay and/or the length of lay of the strands (7) of the first course.Type: GrantFiled: October 26, 2005Date of Patent: February 20, 2007Inventors: Harald Bertges, Heinz-Willi Hamacher, Walter Winkelbauer
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Patent number: 7141740Abstract: A sound signal wire that has higher rigidity to prevent roping effect from reducing sound quality during vibration within a speaker frame, and/or also has a higher flexibility and tensile strength to make the vibrated sound signal wire more durable for use with a speaker for transmitting sound signals is disclosed. The sound signal wire is constructed from sets of weaving wire units which weave onto other sets of support wire units along specific paths, with acetal resin or polyurethane coating the surface of the wire. Each wire unit is comprised of an inner fiber and a conductive metal sheet encompassing the inner fiber, in which the inner fiber is a heat-resistant fiber that is made by a poly meta-aramid fiber mixed-woven with a poly para-aramid fiber.Type: GrantFiled: June 27, 2005Date of Patent: November 28, 2006Assignee: Taiwan Maeden Co., Ltd.Inventor: Joseph Ko
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Patent number: 7084349Abstract: This invention relates to a transformer containing an insulated power cable including a multi-strand cable of a plurality of bundles of uninsulated wires, and electrical insulation sheathing the cable, the electrical insulation having a thickness of from 0.0625 to 0.5 inches (0.16 to 1.3 centimeters) and containing a plurality of layers of spirally-wrapped, creped tape, the tape being including at least 50 percent by weight of an aramid material, the tape having a density of from 0.1 to 0.5 grams per cubic centimeter prior to being creped.Type: GrantFiled: February 3, 2005Date of Patent: August 1, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Lisa C. Bates, Richard P. Marek
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Patent number: 6982385Abstract: A wire cable of electrical conductor forming of multiple metals or alloys includes single (bundle) wire cable or double (bundle) wire cables, in which at least in one bundle of electrical conductor, each bundle of electrical conductor is composed of slim electric wire made by two or more than two metals or alloys, which is covered by insulator to form a wire cable of electrical conductor.Type: GrantFiled: December 4, 2003Date of Patent: January 3, 2006Inventor: Jeng-Shyong Wu
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Patent number: 6900391Abstract: An electric wire for automobile including a compressed conductor which is obtained by arranging around a single central element wire of stainless steel, seven or more peripheral element wires of copper or copper alloy in a single circle in tight adherence with each other, and an insulation coating layer which covers the outer circumference of the conductor, wherein the diameter of the central element wire is larger than the diameters of the peripheral element wires, the cross sectional area of the conductor is 0.13 through 0.16 mm2, and the insulation coating layer contains a fire retardant in the amount of 160 weight parts or more relative to 100 weights parts of insulation polymer.Type: GrantFiled: October 7, 2004Date of Patent: May 31, 2005Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Koutarou Maeda
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Patent number: 6649843Abstract: This invention provides a composite conductor having excellent strength, flexing resistance and corrosion resistance, a production method thereof and a cable employing the same composite conductor. A corrosion resistant layer is formed of Au, Ag, Sn, Ni, solder, Zn, Pd, Sn—Ni alloy, Ni—Co alloy, Ni—P alloy, Ni—Co—P alloy, Cu—Zn alloy, Sn—Bi alloy, Sn—Ag—cu alloy, Sn—Cu alloy or Sn—Zn alloy in the thickness of 0.5 &mgr;m or more on an external periphery of a core made of copper-metal fiber conductor. A wire material made of the copper-metal fiber conductor is subjected to area reduction processing. In the middle of the area reduction processing or after the area reduction processing is completed, corrosion resistant layer is formed on the periphery of the wire material in the thickness of 0.Type: GrantFiled: April 16, 2001Date of Patent: November 18, 2003Assignee: Hitachi Cable, Ltd.Inventors: Seigi Aoyama, Koichi Tamura, Takaaki Ichikawa, Hakaru Matsui, Osamu Seya, Fumitaka Nakahigashi
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Publication number: 20030205404Abstract: The invention is a composite sheet used to bond semiconductor elements and circuit substrates together, containing a resin with magnetic and conductive particles. The invention includes processes for making the sheet and for using the sheet. The sheet includes a binder which contains photocuring and thermosetting components, and a fibrous filler which is both conductive and magnetic. A semicured conductive sheet can be obtained by light irradiation of the sheet. Thermocompression can be used for producing a semiconductor package. Reductions in conductive part pitch are achieved by adhering a noble metal onto the surface of the sheet. Thermal conductivity can be improved by inclusion of a filler having high thermal conductivity. Projections of binder containing magnetic fibrous fillers allows stable electrical conduction. Dispersion of fine particles in the binder inhibits deterioration of the sheets insulating abilities.Type: ApplicationFiled: April 9, 2001Publication date: November 6, 2003Applicant: JSR CORPORATIONInventors: Takeo Hara, Shin-ichiro Iwanaga, Hozumi Sato
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Patent number: 6576844Abstract: A twisted and compressed conductor including a central wire and a plurality of conductor wires concentrically twisted around the central wire, wherein the central wire is at least one high-strength wire made of a fiber-reinforced metal matrix composite.Type: GrantFiled: October 2, 2000Date of Patent: June 10, 2003Assignee: Yazaki CorporationInventor: Takeshi Kamata
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Patent number: 6559385Abstract: A stranded cable that includes a plurality of brittle load bearing wires and a means for maintaining the stranded arrangement of the brittle wires. Because the load bearing wires are brittle, they cannot be sufficiently deformed during conventional cable stranding processes in such a way as to maintain their helical arrangement. Therefore, the means for maintaining the helical arrangement of the stranded wires allows the stranded cable to be conveniently provided as an intermediate article or as a final article. When used as an intermediate article, it may be later incorporated into a final article such as overhead power transmission cables. The maintaining means may be a tape, an adhesive tape, or a binder applied to the stranded wires.Type: GrantFiled: July 14, 2000Date of Patent: May 6, 2003Assignee: 3M Innovative Properties CompanyInventors: Douglas E. Johnson, Tracy L. Anderson
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Publication number: 20020050395Abstract: A coil conductor for a dynamoelectric machine which is a coil conductor to be inserted into slots of an iron core of a dynamoelectric machine, the coil conductor being made of a plurality of wire elements compression-bonded to each other by press-forming so as to have a substantially rectangular cross-section. The wire elements may be twisted by at least 360 degrees or this twisted wire elements may be furhter twisted. The coil conductor comprises straight sections and crossover sections, providing an overall shape of a crank wound in a serpentine manner and the straight sections have different intervals that are different in accordance with the different periodical numbers nth and (n+1) th. The coil conductor for a dynamoelectric machine may further comprises an electrical insulating material disposed around the conductor of a square cross-sectional shape that is formed by simultaneously pressing the conductor bundle with an electrical insulating material placed therearound before press-forming.Type: ApplicationFiled: February 16, 2001Publication date: May 2, 2002Inventors: Katsuhiko Kusumoto, Shinji Nishimura, Keiichi Komurasaki, Akiyoshi Kariyama, Akihiro Yamamura, Yuji Nakahara, Hidekazu Satake, Yoshikazu Ugai
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Patent number: 6331677Abstract: An overhead cable includes an outermost surface formed by twisting together a plurality of segment strands. A plurality of spiral grooves form recesses having substantially rectangular cross-sections and are provided at intervals in a circumferential direction of either the outer surface of the segment strands or the outer surface regions of boundary portions where twisted segment strands adjoin each other. Thin segment strands and at least one thick segment strand form the outermost layer. A recessed portion is provided at one side surface among two surfaces of the segment strands forming the outermost layer, a projecting portion is provided at the other side surface, and the strands are twisted together so that the recessed portions and the projecting portions mate.Type: GrantFiled: October 28, 1999Date of Patent: December 18, 2001Assignees: The Furukawa Electric Co., Ltd., The Kansai Electric Power Co., Inc.Inventors: Takeo Munakata, Naoshi Kikuchi, Takashi Shinohara, Hideo Banse, Takao Kaneko, Hiroji Akasaka, Yukikatsu Aida, Naoyoshi Shimokura, Yuji Ishikubo, Tetsuya Okada, Tamezo Suzuki
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Patent number: 6248955Abstract: An electrically conductive cable includes a number of conductive strands which are twined to form a wire rope. The wire rope is drawn through a die to reduce its diameter until the outer surface of the conductor is smooth and the cross section of the conductor is substantially circular. According to a presently preferred embodiment, the electrically conductive cable is successively drawn through four dies of decreasing diameter so that the overall diameter of the wire rope is reduced by at least approximately 18 percent. The resulting electrically conductive cable has the tensile strength advantage and the low resistance advantage of a solid conductor with the flexibility advantage of a wire rope cable. In addition, the smooth outer surface of the electrically conductive cable according to the invention is easily insulated with an extruded material.Type: GrantFiled: November 29, 1999Date of Patent: June 19, 2001Assignee: General Science and Technology CorpInventor: Francisco J. Avellanet
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Publication number: 20010000590Abstract: The invention relates to the manufacturing of a seven wire symmetrical hybrid conductor comprising a hard copper alloy wire of copper clad steel in the center and six hard ETP copper peripheral wires in 24 and 26 AWG; sizes that fulfills the SAE J 1678 Ford specification with regard to electrical resistance and breaking load, having an outside diameter forming a tubular wall with very light undulations.Type: ApplicationFiled: December 19, 2000Publication date: May 3, 2001Inventors: Armando Rodriguez Valadez, Belisario Sanchez Vazquez
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Patent number: 6194666Abstract: In a push pull type control cable, a conduit has a tubular liner made of a plastic material. A wire is provided by winding a diameter-reduced side wire around a core wire, and arranged to be axially movably placed within the liner. A zinc plating is coated on an outer surface of the side wire, a thickness of the plating ranging from 5.0 &mgr;m to 20 &mgr;m. The core wire is made of a steel, and a diameter of the core wire ranges from 1.2 mm to 1.6 mm. The side wire forms a row of steel lines which are single wound around the core wire at a predetermined lead angle (13 degrees to 25 degrees), a diameter of each of the steel lines ranging from 0.25 mm to 0.60 mm.Type: GrantFiled: March 19, 1999Date of Patent: February 27, 2001Assignee: Chuo Hatsujo Kabushiki KaishaInventors: Takaaki Hayashida, Hideki Imai