Patents Issued in August 31, 2004
-
Patent number: 6784552Abstract: A process for minimizing lateral spacer erosion of an insulating layer adjacent to a contact region and an apparatus whereby there is provided a contact opening with a small alignment tolerance relative to a gate electrode or other structure are disclosed. The process includes the steps of forming a conductive layer on a semiconductor body, then depositing an insulating layer adjacent to the conductive layer. Next, substantially rectangular insulating spacers are formed adjacent to the gate electrode. An etch stop layer is deposited adjacent the insulating layer, followed by an etch to remove the etch stop layer material from the contact region. This etch is conducted under conditions wherein the etch removes the etch stop layer, but retains the substantially rectangular lateral spacer profile of the first insulating layer.Type: GrantFiled: March 31, 2000Date of Patent: August 31, 2004Assignee: Cypress Semiconductor CorporationInventors: James E. Nulty, Christopher J. Petti
-
Patent number: 6784553Abstract: A semiconductor device and a method for manufacturing the semiconductor device with a self-aligned contact, is described. A first conductor and a second conductor are formed on the surface of the semiconductor substrate. The first conductor and the second conductor are encapsulated with a first encapsulation and a second encapsulation, respectively. The first encapsulation and the second encapsulation contain titanium oxide, boron nitride, silicon carbide, magnesium oxide or carbon. The first encapsulation and the second encapsulation are suitable as a self-aligning etch mask for etching a self-aligned contact hole between the first conductor and the second conductor.Type: GrantFiled: June 11, 2002Date of Patent: August 31, 2004Assignee: Infineon Technologies SC300 GmbH & Co. KGInventors: Ralf Zedlitz, Bruno Spuler
-
Patent number: 6784554Abstract: In a semiconductor device in which an LSI chip comprising electrodes with a 100 &mgr;m pitch or less and 50 or more pins is mounted directly on an organic substrate, a mounting structure and a manufacturing method thereof are provided excellent in the solder resistant reflow property, temperature cycle reliability and high temperature/high humidity reliability of the semiconductor device. Electrode Au bumps of the chip and an Au film at the uppermost surface of connection terminals of the substrate are directly flip-chip bonded by Au/Au metal bonding and the elongation of the bonded portion of the Au bump is 2 &mgr;m or more. The method of obtaining the bonded structure involves a process of supersonically bonding both of the bonding surfaces within 10 min after sputter cleaning, under the bonding conditions selected from room temperature on the side of the substrate, room temperature to 150° C.Type: GrantFiled: December 18, 2002Date of Patent: August 31, 2004Assignee: Hitachi, Ltd.Inventors: Ryoichi Kajiwara, Masahiro Koizumi, Masayoshi Shinoda, Akihiko Narisawa, Asao Nishimura, Toshiaki Morita, Kazuya Takahashi, Kazutoshi Itou
-
Patent number: 6784555Abstract: Die attach adhesives and methods for their use, along with the devices that are obtained by the use of the methods. Using semiconductor chips as an example, the adhesives and the method for using them provides an interface between a chip (die) and the chip support. The method includes creating a space between the chip and the chip support of a given sized opening by using inorganic insulator particles having an average particle size of 1 &mgr;m to 1000 &mgr;m and a major axis to minor axis ratio of about 1.0 to 1.5.Type: GrantFiled: September 17, 2001Date of Patent: August 31, 2004Assignee: Dow Corning CorporationInventor: Michael John Watson
-
Patent number: 6784556Abstract: The present invention provides a solution to the problem of weakening bond integrity in integrated circuit devices due in part to test probes galling and weakening the interconnect pads during functional and reliability test probing. In doing so, the invention enables a lowering of the chance a bond wire or interconnect pad will be lifted during a wire bonding process or in normal operation of an integrated circuit device.Type: GrantFiled: April 19, 2002Date of Patent: August 31, 2004Assignee: Kulicke & Soffa Investments, Inc.Inventor: Paul T. Lin
-
Patent number: 6784557Abstract: The semiconductor device includes a semiconductor element having an electrode formed on a surface thereof, and a metal wiring formed on the surface of the semiconductor element and electrically connected to the electrode. The metal wiring has an external electrode portion functioning as an external electrode. A thickness of the external electrode portion is greater than that of a non-electrode portion of the metal wiring, i.e., a portion of the metal wiring other than the external electrode portion.Type: GrantFiled: December 2, 2002Date of Patent: August 31, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshifumi Nakamura, Ryuichi Sahara, Nozomi Shimoishizaka, Kazuyuki Kainou, Keiji Miki, Kazumi Watase, Yasutake Yaguchi
-
Patent number: 6784558Abstract: An embodiment of an integrated circuit die with staggered bond pads and optimized driver layout includes a staggered array of bond pads with an outer ring of bond pads and an inner ring of bond pads. Driver/ESD circuit cells for the outer ring of bond pads are located to the outside of the bond pads (between the outer ring of bond pads and the nearest die edge). The driver/ESD cells for the inner ring of bond pads are located to the inside of the bond pads (between the inner ring of bond pads and the die core). The integrated circuit die is coupled to a lead frame via bond wires.Type: GrantFiled: July 11, 2003Date of Patent: August 31, 2004Assignee: Intel CorporationInventor: Michael A. Jassowski
-
Patent number: 6784559Abstract: A fluid pressure regulator assembly is provided for generating power from a pressurized fluid. A vane motor is coupled between a high-pressure fluid source and a regulator, to extract power from the pressurized fluid and reduce the burden on the fluid regulator. The assembly may be used in association with many devices, including gas grills and self-contained underwater breathing apparatuses. A plurality of vane motors may be provided and generators may be coupled thereto for producing electricity from the pressurized fluid.Type: GrantFiled: February 28, 2002Date of Patent: August 31, 2004Assignee: Thermal Dynamics, Inc.Inventor: Edward L. Simonds
-
Patent number: 6784560Abstract: An engine generator including a soundproofing case that houses an engine and a generator therein. The engine includes an engine-side cooling fan and an engine-side inlet. The generator includes a generator-side cooling fan and a generator-side inlet. The engine generator further includes an engine-side partition and a generator-side partition fixedly disposed within the soundproofing case to define a chamber to be cooled that houses sections of the engine and the generator that are to be cooled, an engine-side air intake chamber that the engine-side inlet faces, and a generator-side air intake chamber that the generator-side inlet faces. The soundproofing case includes a cover part whose inside face is in intimate contact with the outer peripheries of the engine-side and generator-side partitions and has an exhaust vent in a part corresponding to the chamber to be cooled.Type: GrantFiled: September 23, 2002Date of Patent: August 31, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Yasuo Sugimoto, Yoshio Tanaka
-
Patent number: 6784561Abstract: A resistance force generator generates, in accordance with game information, a resistance force corresponding to an input operation on a trigger of an operation device which inputs information to a main unit of a game machine. The resistance force generator has a container that accommodates a magnetic powder, rotating vanes which are provided inside the container and rotate based on the input operation of the trigger, and an electromagnet which generates a magnetic field inside the container in accordance with game information.Type: GrantFiled: November 15, 2002Date of Patent: August 31, 2004Assignee: Sony Computer Entertainment Inc.Inventor: Yasuhiro Ootori
-
Patent number: 6784562Abstract: Autonomous system for generating electricity comprising energy storage through an inertial flywheel. This system includes an engine/generator assembly having a heat engine, a mechanical speed variator, a clutch, a flywheel and a generator. The assembly composed of the clutch, the flywheel and the generator is placed in an evacuated enclosure so as to reduce energy losses. This system is intended to be installed directly in the buildings where the energy is used, such as for example, in detached houses. The system makes it possible to dispense with a link to the electrical economical in use than the systems of the same type which are already known.Type: GrantFiled: October 17, 2001Date of Patent: August 31, 2004Assignee: EnergiestroInventor: André René Georges Gennesseaux
-
Patent number: 6784563Abstract: In a hybrid vehicle of the present invention, an engine EG is subjected to feedback control to attain a target revolving speed NE*. In the case of malfunction of an inverter P1 for a generator GN, operation of the inverter P1 is stopped. When the generator GN is driven to rotate at a predetermined rotational speed, a counter electromotive force arises in a multiphase phase coil of the generator GN. When a motor MG is connected to the generator GN as a loading, electric current runs via a protection diode of the inverter P1 to implement power generation by the generator GN. The electric power generated by the generator GN is directly consumed by the motor MG. This arrangement enables the quantity of power generation to balance the quantity of consumption. Here the revolving speed of the engine EG is varied according to the loading applied to the vehicle.Type: GrantFiled: November 25, 2002Date of Patent: August 31, 2004Assignee: Toyota Jidosha Kabushiki KaishaInventor: Mitsuhiro Nada
-
Patent number: 6784564Abstract: The present invention concerns a method of operating a wind power installation comprising an electric generator drivable by a rotor for outputting electrical power to an electrical consumer, in particular an electrical network. The invention further concerns a wind power installation comprising a rotor and an electric gererator coupled to the rotor for outputting electric power to an electrical consumer, in particular an electrical network. The object of the present invention is to provide a method of operating a wind power installation, and a wind power installation, which avoid the disadvantages of the state of the art and in particular avoid voltage over-fluctuations at the consumer, in particular an electrical network, and unwanted shut-down of the wind power installation.Type: GrantFiled: July 19, 2000Date of Patent: August 31, 2004Inventor: Alovs Wobben
-
Patent number: 6784565Abstract: In an integrated turbogenerator system having an air intake for a compressor to supply combustion air to a combustor, an electric brake device such as a resistor is connected to the electrical power output of the turbogenerator and is situated in the air intake to be cooled by the stream of combustion air flowing into the intake. When load transients require unloading excess electrical power produced by the turbogenerator, the brake resistor is supplied with at least part of the excess electrical power to create heat energy and thereby heat the in-flowing combustion air to lower the combustor efficiency, turbogenerator power produced, and excess electric power to be unloaded. An algorithm may be provided for controlling the turbogenerator speed deceleration rate to maintain the brake resistor at or near a physical temperature limit.Type: GrantFiled: February 15, 2002Date of Patent: August 31, 2004Assignee: Capstone Turbine CorporationInventors: Simon Wall, Brian Dickey, Guillermo Pont
-
Patent number: 6784566Abstract: A pair of vertical axis wind turbines are arranged in close proximity to each other so that their vortices interact with each other to provide enhanced aerodynamic efficiency. The wind turbines are spaced as closely as possible while providing for machine and personnel safety. Adjacent wind turbines rotate in opposite directions to enhance the coupled vortex effect. The vertical axis wind turbines may be located underneath a row of horizontal axis turbines in a “bush-tree” configuration to provide greater energy extraction from a parcel of land. The vertical axis turbine includes a simple, redundant, fail-safe braking system that self-resets after a fault condition clears. The braking system includes mechanical and aerodynamic braking and also includes a speed governor that stops the wind turbine even in the event that the primary brake fails.Type: GrantFiled: January 25, 2002Date of Patent: August 31, 2004Inventor: Robert Nason Thomas
-
Patent number: 6784567Abstract: A switching apparatus and method designed to control a car radio or other device with only one connection to the vehicle and with no modification to the original wiring. (However, the scope of the invention is not limited to vehicles.) In the first preferred embodiment it is used to power a cell phone or other device from the line to the car radio. In both preferred embodiments, the power to the radio is cut off when the cell phone is in use. The fuse in the fuse box for the car radio is replaced with a dummy fuse. That fuse is then inserted into an in-line fuse holder. A connector on each leg of the output from the dummy fuse can supply power to the cell phone. A third connector may be plugged into one of the other connectors for powering of hand-free cellular phones that may be independently fused.Type: GrantFiled: June 6, 2002Date of Patent: August 31, 2004Inventor: Orrin Edward Klitzner
-
Patent number: 6784568Abstract: A device such as an electrotherapy device implementing the invention includes multiple power module receptacles each of which is configured to received at least one type of power module, and a power management system that selectively routes power provided by one or more installed power modules to the device components and, preferably, to other power module receptacles. The types of power modules that operate in the power module receptacles include, for example, rechargeable battery packs, non-rechargeable battery packs and AC power packs. Preferably these power modules are each fully integrated, functionally self-contained power modules. For example, the rechargeable battery pack includes a charge controller specifically designed to charge the battery pack in which it is implemented.Type: GrantFiled: April 16, 2003Date of Patent: August 31, 2004Assignee: Koninklijke Philips Electronics N.V.Inventor: Daniel J. Powers
-
Patent number: 6784569Abstract: A data bus arrangement and method for connecting a plurality of nodes to one another through a star coupler arrangement of a data bus which uses a logical decision gate having a plurality of inputs corresponding to said plurality of nodes wherein the logical decision gate inputs receive electrical signals and outputs an electrical signal to be routed back to each of said plurality of nodes. Some of the nodes are connected through opt0-electric transducers to the inputs of the logical decision gate. These transducers convert optical input signals from the nodes to electric signals to the inputs of the logical decision gate and also convert the output from the logical decision gate back to optical signals to the nodes. A signal conditioning circuit modifies the output signal of the logical decision gate.Type: GrantFiled: September 11, 2000Date of Patent: August 31, 2004Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Martin Peller
-
Patent number: 6784570Abstract: A power supply station is presented having a substantially flat-based portion and a taller rear portion extending upward from the rear of the primary base portion, but being formed integrally therefrom. Dual connectors extend forward from the front surface of the rear portion and are adapted for connecting with recessed male connectors found on the rear sockets of SINCGARS radio. Internal electronics within a unit converts standard 110/220 Volt AC current into a standard +12 Volt DC source compatible with standard SINCGARS radios. The internal electronics provide separate conversion power supplies for both connectors to allow for two SINCGARS radios to be powered simultaneously. The invention also includes switches for controlling the powering of any installed SINCGARS radio as well as low friction runners and retention latches on the front of the unit to allow for secure retention of the SINCGARS radio on the invention while powering.Type: GrantFiled: December 14, 2001Date of Patent: August 31, 2004Assignee: Perkins Technical Services, Inc.Inventors: Robert Allen Walls, Michael Samuel Hamilton, Kenneth Wayne Arnold, Hubert Sims, Jr.
-
Patent number: 6784571Abstract: The present invention relates to an electronic safety switching device having at least a first and a second signal processing channel. The channels can be supplied with input signals for signal processing, and they provide redundantly processed output signals. According to one aspect of the invention, the signal processing channels are arranged monolithically on a common semiconductor substrate. The semiconductor structures of each signal processing channel are spaced apart physically by a multiple of their width from the semiconductor structures of every other signal processing channel.Type: GrantFiled: April 16, 2003Date of Patent: August 31, 2004Assignee: Pilz GmbH & Co.Inventors: Roland Rupp, Hans Schwenkel
-
Patent number: 6784572Abstract: A path for a linear motor system includes routing system between a trunk of the path and two or more branches. The routing system is operative to couple the trunk with a selected branch to enable a stage to travel between the trunk and the selected branch. The routing system includes armature windings that may be energized to effect movement of the stage in a desired direction between the trunk and the selected branch.Type: GrantFiled: September 18, 2001Date of Patent: August 31, 2004Assignee: Anorad CorporationInventors: Michael H. Backman, Frederick A. Sommerhalter, Jr., Mustansir A. Faizullabhoy, Anwar Chitayat
-
Patent number: 6784573Abstract: A brazed joint between an armature bar strand package and an end fitting is provided where a plurality of solid strands and a plurality of hollow strands are arranged in an array. The plurality of hollow strands have free ends that extend axially beyond corresponding free ends of the solid strands. A cavity in the end fitting is accessed by an opening, and the free ends of the plurality of hollow and the corresponding free ends of the solid strands extend through the opening into the cavity. A braze alloy joins the free ends of the plurality of hollow strands and the corresponding free ends of the plurality of solid strands to each other and to interior surfaces of the end fitting, wherein the braze alloy does not extend substantially beyond the free ends of the solid strands. A related method of forming the brazed joint is also disclosed.Type: GrantFiled: April 18, 2003Date of Patent: August 31, 2004Assignee: General Electric CompanyInventors: Alan Michael Iversen, Robert Timothy Lembke, James Rollins Maughan, Robert John Nygard
-
Patent number: 6784574Abstract: An air flow structure is provided for controlling the flow of air through an enclosure of a generator. The enclosure has first and second opposite ends and the generator includes an alternator and an engine driving the alternator. A first air flow generator draws ambient air into the chamber through the first end of the enclosure and directs the first portion of air in the chamber across the engine. A second air flow generator draws a second portion of the air over the alternator, and thereafter, combines the first portion of air directed over the engine and the second portion of air drawn over the alternator. The second air flow generator urges the combined air from the enclosure through the second end thereof.Type: GrantFiled: March 1, 2001Date of Patent: August 31, 2004Assignee: Generac Power Systems, Inc.Inventors: Chris Turner, Christine Richardson, Robert D. Kern, Gerald C. Ruehlow
-
Patent number: 6784575Abstract: A motor/generator housed in an annular space formed between an engine side wall and a crank pulley fixed to an end of a crank shaft includes a stator supported on the engine side wall and a rotor supported on the inner surface of a peripheral wall of the pulley. Air is introduced into the annular space via an air inlet passage by means of cooling fan blades formed on a side wall of the crank pulley, and coils are cooled by passing the air through air passages formed between adjacent coils. The entrance of an air gap between the stator and the rotor is shielded by means of shields provided on bobbins so as to prevent any foreign matter from entering the air gap.Type: GrantFiled: May 29, 2001Date of Patent: August 31, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Kazuma Okuda
-
Patent number: 6784576Abstract: A rectifier and method for forming the rectifier for an internal alternator regulator (IAR) style alternator includes an integrally formed rectifier body having a ground engaging surface that mounts within the alternator and is grounded through an automotive grounding system. A diode receiving cavity is opposite the ground engaging surface A plurality of negative diodes are secured within the diode receiving cavity and grounded thereto. An insulated conductor substrate is positioned in the diode receiving cavity and has a conductive surface that is insulated from the rectifier body and negative diodes. Positive diodes are secured on the insulated conductive substrate. A terminal connector interconnects negative and positive diodes in a preferred bridge rectifier configuration.Type: GrantFiled: August 26, 2002Date of Patent: August 31, 2004Assignee: Wetherill Associates, Inc.Inventor: An Huu Nguyen
-
Patent number: 6784577Abstract: In a rotor for a vehicular alternating current generator, a field coil is wound around an insulating bobbin. A flange of the bobbin is formed with the first, second and third hook portions. A coil winding finishing end is wound around the first hook portion and is opposed to a winding direction of the field coil. The finishing end is then directed in a radially inward direction with the second hook portion, and extended further in the radially inward direction along the axial end surface of the flange. Then, the finishing end is directed in the axial direction with the third hook portion, radially inside of the outer peripheral end of the field coil. The finishing end forms an angle with itself of less than 90 degrees around the first hook portion when being viewed along an axial direction of the first hook portion.Type: GrantFiled: May 8, 2002Date of Patent: August 31, 2004Assignee: Denso CorporationInventor: Koji Kondo
-
Patent number: 6784578Abstract: A self-energizing brake for a motor has a moving brake section, including a brake friction material located on a portion of a face thereof perpendicular to its axis of rotation which is automatically urged toward a brake mating surface upon the motor coming to a stop, thereby automatically energizing the brake, and which is automatically urged away from the brake mating surface upon the motor beginning its rotation, thereby automatically de-energizing the brake.Type: GrantFiled: July 3, 2002Date of Patent: August 31, 2004Assignee: Moog Components Group Inc.Inventor: Robert Gene Zambelli
-
Patent number: 6784580Abstract: A compact turbo-molecular pump having a high depressurizing capability. A motor driving the pump includes a rotary shaft, the distal and basal ends of which are supported by magnetic bearings. Each magnetic bearing has a rotated magnet, which is rotated integrally with the rotary shaft, and a fixed magnet, which is opposed to the rotated magnet. The rotated and fixed magnets repel each other. The diameter of the magnetic bearing at the distal end of the rotary shaft is greater than that of the magnetic bearing at the basal end. This decreases movement of the rotary shaft toward its distal end when the pump operates.Type: GrantFiled: November 5, 2002Date of Patent: August 31, 2004Assignee: Ibiden Co., Ltd.Inventors: Hirokazu Yashiro, Youichi Kuwayama
-
Patent number: 6784581Abstract: A magnetic floating bearing of a fan includes an outer magnetic ring formed with a central axial through hole and an upper and a lower ends of the wall of the through hole having a magnetic strength greater than that of a center of the wall. An inner magnetic ring formed with a central axial fitting hole in which a rotary shaft is snugly fitted. The polarity of an outer circumferential wall of the inner magnetic ring is identical to the polarity of the wall of the through hole of the outer magnetic ring and an upper and a lower ends of the outer circumferential wall of the inner magnetic ring having a magnetic strength less than that of a center of the outer circumferential wall. Therefore, the inner magnetic ring is rotatably restricted and located within the outer magnetic ring without upward or downward detaching therefrom.Type: GrantFiled: March 19, 2003Date of Patent: August 31, 2004Inventors: Cheng-Kang Chen, Chien-Chun Yu
-
Patent number: 6784582Abstract: A rotor for a permanent magnet motor with a rotor yoke and a permanent magnet ring mounted on the rotor yoke, the magnet ring having a plurality of circumferentially spaced poles. One of the rotor yoke and the permanent magnet ring is an annular member including depressed portions along a peripheral edge located around a midpoint between each pole. The depressed portions are shaped so the motor produces a sinusoidal flux density. The other of the rotor yoke and the permanent magnet ring is an annular ring. In another aspect, the rotor has a rotor yoke and a permanent magnet ring mounted on the rotor yoke. The permanent magnet ring includes a plurality of circumferentially spaced poles. One of the rotor yoke and the permanent magnet ring includes a plurality of depressions along an outer peripheral edge shaped so the motor produces a sinusoidal flux density during operation. Each of the plurality of depressions is located around a junction defined by two poles.Type: GrantFiled: November 19, 2001Date of Patent: August 31, 2004Assignee: Valeo Electrical Systems, Inc.Inventors: Sergei F. Kolomeitsev, John R. Suriano
-
Patent number: 6784583Abstract: A rotary electric machine having an armature winding that includes three first phase-windings that form a &Dgr;-connection winding having output ends and three second phase-windings that are respectively connected in series to the output ends to form a star-connection three-phase winding having output ends connected to a rectifier unit.Type: GrantFiled: February 14, 2002Date of Patent: August 31, 2004Assignee: Denso CorporationInventor: Atsushi Umeda
-
Patent number: 6784584Abstract: The electric motor comprises an internal rotor and an external stator with stator windings. The rotor comprises several permanently magnetic pole shoes. The stator windings are supported by stator pole shanks comprising, radially inside, stator pole shoes facing the rotor pole shoes. Via a short circuit bridge, the stator pole shoes are connected with the adjacent stator pole shoes so that all the stator pole shanks are integrally formed with each other. Radially outside, the stator pole shanks and stator pole shoes are connected with each other only by a separate yoke ring set thereon. All the windings are wound from radially outside with one single continuous winding wire when the yoke ring has been removed.Type: GrantFiled: October 23, 2002Date of Patent: August 31, 2004Assignee: Pierburg GmbHInventors: Andreas Knoll, Wolfgang Zacher, Michael Weinert
-
Patent number: 6784585Abstract: A hybrid synchronous machine includes a cylindrical element having slots; excitation windings situated in at least some of the slots; and permanent magnets situated in at least some of the slots. For a hybrid salient pole machine 16 a cylindrical element has salient poles with excitation windings situated around the salient poles and permanent magnets supported by the salient poles.Type: GrantFiled: November 18, 2002Date of Patent: August 31, 2004Assignee: General Electric CompanyInventors: Manoj Ramprasad Shah, Gerald Burt Kliman, Madabushi Venkata Krishnama Chari
-
Patent number: 6784586Abstract: The invention relates to a rotating electric machine, especially an alternator or alternator/starter for motor vehicles, including a stator surrounding a rotor (10) equipped with a pack of metal plates, a gap between the stator and the rotor, permanent magnets integrated into the rotor and excitation coils (14) integrated into the rotor, in which the excitation coils are wound around salient poles (1310) cut out in the pack of metal plates of the rotor, and the permanent magnets are accommodated in housings (13110) formed in the pack of plates of the rotor and open towards the periphery of the rotor, characterized in that the housings (13110) are closed axially at each of their ends by a non-magnetic retaining piece (13) equipped with a part intended to come into abutment with the magnets, and in that the retaining piece features recesses for accommodations [sic] of the buns of the excitation coils (14).Type: GrantFiled: August 22, 2002Date of Patent: August 31, 2004Assignee: Valeo Equipments Electriques MoteurInventor: Antoine Dokou Akemakou
-
Patent number: 6784587Abstract: The present invention relates to a structure of a stacked stator core formed when rotary motors are manufactured and to a method of manufacturing the stacked stator core. It is possible to improve the workability in the winding process and the productivity of the stator and the rotary motor because the stacked stator core includes a plurality of stator cores 300, each of which is made up of a prescribed number of stacked sheet magnetic materials, a plurality of yoke members 301 forming each stator core, a bendable bent portion 304 provided between the yoke members, and an interconnecting portion 401 for connecting the plurality of stator cores 300 one another while providing a difference in level, by connecting the top end of one stator core with the bottom end of the other stator core.Type: GrantFiled: April 29, 2002Date of Patent: August 31, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Nobuaki Miyake, Akio Matsui, Yuji Nakahara, Yasuyuki Nakanishi, Akira Hashimoto, Masaya Motohashi
-
Patent number: 6784588Abstract: A high efficiency electric motor has a generally polyhedrally shaped bulk amorphous metal magnetic component in which a plurality of layers of amorphous metal strips are laminated together adhesively to form a generally three-dimensional part having the shape of a polyhedron. The bulk amorphous metal magnetic component may include an arcuate surface, and preferably includes two arcuate surfaces that are disposed opposite to each other. The magnetic component is operable at frequencies ranging from about 50 Hz to about 20,000 Hz. When the motor is operated at an excitation frequency “f” to a peak induction level Bmax, the component exhibits a core-loss less than about “L” wherein L is given by the formula L=0.005 f (Bmax)1.5+0.000012 f1.5 (Bmax)1.6, said core loss, said excitation frequency and said peak induction level being measured in watts per kilogram, hertz, and teslas, respectively.Type: GrantFiled: February 3, 2003Date of Patent: August 31, 2004Assignee: Metglas, Inc.Inventors: Nicholas J. DeCristofaro, Gordon E. Fish, Scott M. Lindquist, Carl E. Kroger
-
Patent number: 6784589Abstract: A plane commutator in which it is easy to integrally form carbon and segment, connecting strength between the carbon and mold resin is enhanced, and conductivity is enhanced. The plane carbon commutator comprises a plurality of metal segments fixed to a commutator body made of resin, engaging projections provided on a carbon which was previously burnt at a high temperature, the engaging projections being engaged with engaging holes provided in the segments functioning to allow insertion of the engaging projections into the engaging holes but prevent the engaging projections from being pulled out from the engaging holes are projected from peripheral edges of the engaging holes, and the cut-rising pieces are brought into contact under pressure with peripheral faces of the engaging projections. Peripheral faces of tip end side engaging projections are formed into coarse faces, and conductive paste is interposed between the segments and the carbon.Type: GrantFiled: May 25, 2000Date of Patent: August 31, 2004Assignee: Sugiyama Seisakusyo Co. Ltd.Inventor: Kenichi Sugiyama
-
Patent number: 6784590Abstract: A permanent magnet motor comprising a permanent magnet and an armature having a plurality of winding grooves facing the permanent magnet with an air gap therebetween. The armature has a plurality of auxiliary grooves on a magnetic pole surface thereof, wherein a composite of two vectors of cogging torque generated by the auxiliary grooves is deviated by 180° or 120° from a vector of cogging torque generated by the winding grooves in the sixth harmonic plane, and wherein a width of a portion of an air gap magnetic flux density waveform that includes a value that is more than 90% of a peak value of the air gap magnetic flux density waveform is less than 80% or 86% of a width of a pole pitch portion of the air gap magnetic flux density waveform.Type: GrantFiled: March 28, 2002Date of Patent: August 31, 2004Assignee: Japan Servo Co., Ltd.Inventors: Kazuo Ohnishi, Toshimi Abukawa, Tokio Sekiguchi
-
Patent number: 6784591Abstract: A gravitational wave generating device comprising an energizing means which act upon energizable elements such as molecules, atoms, nuclei or nuclear particles in order to create nuclear reactions or collisions, the products of which can move in a single preferred direction with an attendant impulse (jerk or harmonic oscillation) of an ensemble of target nuclei or other energizable elements over a very brief time period. The target nuclei or energizable elements acting in concert generate a gravitational wave. A preferred embodiment involves the use of a pulsed particle beam moving at the local gravitational wave speed in a target mass, which is comprised of target nuclei, to trigger a nuclear reaction and build up a coherent gravitational wave as the particles of the beam move through the target mass and impact target nuclei over very short time spans.Type: GrantFiled: December 27, 2000Date of Patent: August 31, 2004Inventor: Robert M. L. Baker, Jr.
-
Patent number: 6784592Abstract: A micro-machined actuator for use in, among other things, sensors and data storage devices. The actuator includes a stator wafer and a micro-mover positioned adjacent to the stator wafer. Between the stator wafer and the micro-mover are electrodes that are set to specified voltages and that emanate electric fields that position the micro-mover relative to the stator wafer. Also between stator wafer and the micro-mover are bumpers that prevent the electrodes from coming into contact with each other.Type: GrantFiled: May 15, 2001Date of Patent: August 31, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventor: Peter G. Hartwell
-
Patent number: 6784593Abstract: A micro-machined actuator for use in, among other things, sensors and data storage devices. The actuator includes a stator wafer and a micro-mover positioned adjacent to the stator wafer. Between the stator wafer and the micro-mover are electrodes that are set to specified voltages and that emanate electric fields that position the micro-mover relative to the stator wafer. Also between stator wafer and the micro-mover are bumpers that prevent the electrodes from coming into contact with each other.Type: GrantFiled: November 6, 2002Date of Patent: August 31, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventor: Peter G. Hartwell
-
Patent number: 6784594Abstract: A first stator is provided with stator electrodes sequentially arranged in a predetermined direction. An extended electrode is mounted on a second stator arranged to face the first stator. A slider is movably arranged between the first and second stators. The slider is provided with a large number of slider electrodes arranged to face the stator electrodes and a second slider electrode facing the extended electrode. The slider electrodes are maintained at the ground potential. A first and second driving voltage are periodically applied to the stator electrodes and to the extended electrode, respectively, which are opposite to each other in phase and are periodically switched between the ground potential and the positive driving voltage. Thus, the slider is moved in a direction while being vibrated.Type: GrantFiled: July 16, 2003Date of Patent: August 31, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Akihiro Kasahara, Masayuki Sekimura, Akihiro Koga
-
Patent number: 6784595Abstract: The invention provides a method for adjusting the temperature-dependent property of a surface acoustic wave device is provided,, The method is appropriate for a temperature-dependent property that is expressed by a cubic function of a surface acoustic wave device using an in-plane rotated ST cut quartz crystal plate. The invention therefore provides a method for adjusting the temperature-dependent property of a surface acoustic wave device using an in-plane rotated ST cut quartz crystal plate having Euler angles of (0°, 113-135°, ±(40-49°)). The range of Euler angles is defined so that the temperature-dependent property of the surface acoustic wave device, using an in-plane rotated ST cut quartz crystal plate having the temperature-dependent property expressed by a cubic function, has an extreme value within the temperature range of −40 to +85° C.Type: GrantFiled: August 28, 2002Date of Patent: August 31, 2004Assignee: Seiko Epson CorporationInventors: Keigo Iizawa, Takashi Yamazaki, Shigeo Kanna
-
Patent number: 6784596Abstract: A method of charging or discharging a piezoelectric element, in which electric charge carriers are transported back and forth between a supply voltage of a direct voltage source and a piezoelectric element in order to transmit an elastic deflection of the piezoelectric element to an actuator. An actuating movement of the actuator is modified as a function of the level of a voltage being applied to the piezoelectric element, a reduction of the level of the applied voltage being compensated for by at least one additional transmission of electric charge carriers during a holding phase of the piezoelectric element.Type: GrantFiled: November 8, 2002Date of Patent: August 31, 2004Assignee: Robert Bosch GmbHInventors: Johannes-Joerg Rueger, Udo Schulz
-
Patent number: 6784597Abstract: Stacked wheels of the rotor of a rotary machine are axially coupled to one another by tie bolt assemblies. Each tie bolt assembly includes a stud having forward and aft ends. The aft end of the stud includes a self-locking nut to thereby lock the stud/nut assembly against rotation relative to the rotor.Type: GrantFiled: April 15, 2003Date of Patent: August 31, 2004Assignee: General Electric CompanyInventors: John Raymond Hess, Roger Clayton Walker, Gabriel E. Robledo, Paul Jeffrey Meyer
-
Patent number: 6784598Abstract: An electronic component includes a case substrate. Substrate electrodes having a substantially spherical outer surface are disposed on at least a first principal surface of the case substrate. A piezoelectric resonator is mounted on the case substrate such that the piezoelectric resonator is bonded to the outer surfaces of the substrate electrodes by a conductive bonding material and is supported by the substrate electrodes in a point-contact manner. Also, the formula, Lk−2We<Lp<Lk−We, is satisfied where Lp is the length of the piezoelectric resonator, Lk is the length of the case substrate, and We is the length of the substrate electrode.Type: GrantFiled: June 13, 2003Date of Patent: August 31, 2004Assignee: Murata Manufacturing Co., Ltd.Inventor: Hiroaki Kaida
-
Patent number: 6784599Abstract: A piezoelectric actuator for actuating a mechanical component includes a piezoelectric element, for subjecting an actuating element to a tensile force or compressive force, and a compensating element, with the piezoelectric element and the compensating element having essentially the same coefficients of temperature expansion. The compensating element is mechanically coupled to the piezoelectric element in such a way that the temperature-caused expansions of the piezoelectric element and of the compensating element cancel one another out in the effective direction in such a way that the actuating element remains in its position.Type: GrantFiled: March 12, 2002Date of Patent: August 31, 2004Assignee: Robert Bosch GmbHInventors: Wolfgang Stoecklein, Friedrich Boecking
-
Patent number: 6784600Abstract: The invention is directed towards structures for use with micro-formed membrane ultrasonic transducers, and methods for fabricating the structures. In one embodiment, the transducer includes a planar member having a piezoelectric material and spaced apart electrodes disposed on the planar member and coupled to the piezoelectric material for applying an electric field to the layer, and an acoustic backing member joined to the electrodes. In another embodiment, the transducer includes a planar member having a piezoelectric material that adjoins a semiconductor material, the semiconductor material having monolithically formed active circuits formed in the layer and coupled to the piezoelectric material. In still another embodiment, the transducer includes a planar member having a piezoelectric material, and an acoustic backing member having an adjoining layer of a semiconductor material having monolithically formed active circuits, the active circuits being coupled to the electrodes.Type: GrantFiled: May 1, 2002Date of Patent: August 31, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Mareike Katharine Klee, Georg Schmitz, John D. Fraser
-
Patent number: 6784601Abstract: The present invention relates to a lamp device using a high-pressure vapor discharge lamp, particularly to an improvement for controlling the influence of the generation of heat, which accompanies an increase in lamp power and a reduction in the size of a reflector. A lamp device of the present invention comprises a discharge lamp having an arc tube enclosing luminescent materials and having a pair of opposing electrodes disposed therein and a pair of sealed portions extending from the arc tube; a reflector which reflects light radiated by the discharge lamp; a transparent member covering an open end of the reflector and accommodating the discharge lamp in a space between the transparent member and the reflector; and means for preventing an excessive temperature rise wherein the temperature rise of welded parts of wiring members electrically connected to the electrodes of the discharge lamp is restricted.Type: GrantFiled: July 27, 2001Date of Patent: August 31, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Makoto Kai, Makoto Horiuchi, Mamoru Takeda, Tomoyuki Seki, Tsuyoshi Ichibakase
-
Patent number: 6784602Abstract: The present invention provides a novel organic electroluminescent device having an optical interference member which reduces the overall reflectance from the device. The invention is particularly suited to current-driven organic displays having an anode, an electroluminescent layer and a cathode, where at least one optical interference member is placed between two of the layers and thus forms part of the electrical circuit required to excite the display. The optical interference member is chosen to have a thickness which causes at least some destructive optical interference of ambient light incident on the display. In addition, the material(s) of the optical interference member are chosen to have a work function which is compatible with the highest occupied molecular orbital, or the lowest unoccupied molecular orbital of the electroluminescent layer, depending on the location of the optical interference member in relation to the anode, cathode and electroluminescent layer.Type: GrantFiled: October 25, 2001Date of Patent: August 31, 2004Assignee: Luxell Technologies Inc.Inventors: Peter G. Hofstra, Alexey Krasnov