Patents Issued in February 19, 2008
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Patent number: 7332823Abstract: In one embodiment, the present invention includes a semiconductor package having a substrate, a semiconductor die with a first surface opposing the substrate and a second surface, a metal layer formed on the second surface of the semiconductor die, and a mold layer formed on the substrate. In some embodiments, the mold layer is substantially coplanar with the metal layer to improve package performance. Other embodiments are described and claimed.Type: GrantFiled: December 15, 2005Date of Patent: February 19, 2008Assignee: Intel CorporationInventors: Lee Peng Khaw, Chee Koang Chen, Wooi Aun Tan, Tze Yang Hin
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Patent number: 7332825Abstract: This invention overcomes the disadvantages of the prior art by providing a power generating system particularly suitable for field use in remote locations, which is fuel-efficient, relatively quiet, tolerant of dust, capable of operating on low grade logistics and diesel-like fuels and capable of generating between 500 W and 2 KW of continuous electrical power. This generating system employs a two-cycle MICE generator having a piston that operates within a cylinder, and an interconnected, axially moving piston shaft that oscillates an alternator coil within a magnetic core. The piston shaft is attached to, and resisted by, the free end of a strong spring with a second, opposing end fixed to the MICE casing. To control operation of the MICE generator a dual clipper circuit is operatively connected with the alternator coil.Type: GrantFiled: January 6, 2006Date of Patent: February 19, 2008Assignee: Aerodyne Research, Inc.Inventors: Kurt D. Annen, Jaime Woodroffe, Roger Putnam
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Patent number: 7332826Abstract: An automated provider of predesigned mechanical motion to self powered cell phones is disclosed which avoids the need for users thereof to perform manual manipulations of the phones for power restorative purposes. An optimized kinetic generator of electrical currents for such phones is also disclosed based upon use of a linear wire coil-wrapped tubular raceway through which a permanent magnetic member moves in substantially perpendicular orientation of its magnetic flux relative to the wire coils.Type: GrantFiled: March 2, 2007Date of Patent: February 19, 2008Assignee: Incelex, LLCInventors: Berj A. Terzian, Robert Alfred Brodmann
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Patent number: 7332827Abstract: The present invention relates to a method and an apparatus for controlling a power-grid connected wind turbine generator during grid faults. During grid faults, the stator windings of the wind turbine generator are disconnected from the power grid and impedances for dissipating at least part of the power generated by the wind turbine during grid fault condition are connected to the stator windings. In this way, a certain magnetisation of the generator can be maintained and after removal of the grid fault condition, the generator is synchronised to the power grid and the impedances are disconnected and the stator windings are reconnected to the power grid. In this way, it is possible to keep the wind turbine generator at least partly magnetised during grid faults and thus ready for delivering power to the power grid, as soon as the grid voltage is re-established after the fault.Type: GrantFiled: February 7, 2003Date of Patent: February 19, 2008Assignee: Vestas Wind Systems A/SInventor: John Godsk Nielsen
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Patent number: 7332828Abstract: A system of one embodiment is disclosed that includes a load, a power supply, and a mechanism. The load is operable in a default mode and an alternate mode. The load has better performance in the default mode than in the alternate mode, and consumes less peak power in the alternate mode than in the default mode. The power supply is connectable to an external power source to provide voltage to at least the load. The mechanism causes the load to operate in the alternate mode upon detecting the voltage provided by the power supply dropping below a predetermined threshold level than a predetermined threshold number of times.Type: GrantFiled: May 30, 2007Date of Patent: February 19, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventor: Thomas G. Radley
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Patent number: 7332829Abstract: In a condition monitor system for controlling a power supply in a vehicle, a charge/discharge circuit has a capacitor which is discharged in response to each of speed pulses of a speed sensor and periodic pulses of a microcomputer. When none of the pulses are generated due to abnormality, the capacitor is continuously charged without being discharged. When the charge voltage of the capacitor reaches a switching voltage, a relay is turned off to shut off the power supply to various parts in the vehicle. The charge/discharge circuit is commonly used to check generation of the speed pulses and the periodic pulses by setting the switching voltage in accordance with a possible maximum time interval of the speed pulses.Type: GrantFiled: July 29, 2004Date of Patent: February 19, 2008Assignee: DENSO CORPORATIONInventors: Nobutomo Takagi, Makoto Kawatsu, Yasuhiro Tanaka
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Patent number: 7332830Abstract: A rainfall determination apparatus for determining rainfall based on data relating to a wiping operation of a wiper. The apparatus includes a detection device for detecting the wiping operation every time this operation is performed; a timer for starting to clock a predetermined period of time for each wiping operation; a counter for counting the number of times of the wiping operation performed before the predetermined period of time has elapsed; and a determination device for determining that rainfall occurs when the counter counts a predetermined number of times of the wiping operation which is successively performed. The timing of lighting the headlight of a vehicle can be changed in accordance with the result of the determination about the rainfall situation based on the wiping operation of the existing wiper. The apparatus is inexpensive and can be easily built in an automatic lighting system for vehicles, which is relatively expensive.Type: GrantFiled: March 22, 2005Date of Patent: February 19, 2008Assignee: Honda Motor Co., Ltd.Inventors: Masayuki Yamazaki, Koji Yamaoka
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Patent number: 7332831Abstract: A power supply apparatus includes a plurality of power supply circuits, switches connected to the power supply circuits, a common soft start circuit and an individual soft start circuit commonly connected to the plurality of power supply circuits via the switches. The power supply circuits are commonly connected to the common soft start circuit at power-on or power-off so as to perform common soft start by the common soft start circuit. When a voltage from any of the plurality of power supply circuits is caused to make a transition individually, the associated power supply circuit is connected to the individual soft start circuit so as to perform soft start by the individual soft start circuit.Type: GrantFiled: March 23, 2006Date of Patent: February 19, 2008Assignee: Rohm Co., Ltd.Inventor: Yasuhiro Miyagoe
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Patent number: 7332832Abstract: Circuitry in a hard disk drive (HDD) senses the supply voltage, normally at power-on, and applies appropriate DC-to-DC conversion (pass-through, step-down, or boost regulation) according to the design requirements of the HDD.Type: GrantFiled: February 27, 2004Date of Patent: February 19, 2008Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventor: Bryan S. Rowan
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Patent number: 7332833Abstract: The present invention provides a switching circuit for the master-slave feeding mode of the low voltage power supply. The switching circuit utilizes the active switches as the switching devices, so that it can increase the switching speed, decrease the voltage drop and loss, being suitable to the low voltage circuits, and can judge or determine the master power supply and the back-up power supply, realizing the switching between the master and slave power supplies without interruption. The switching circuit of the invention improves the reliability of the system and has the simple structure and easy operation.Type: GrantFiled: December 3, 2004Date of Patent: February 19, 2008Assignee: AlcatelInventors: JunKui Pan, HongBing Cheng, YuJian Qian, Lan Zhang
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Patent number: 7332834Abstract: A power outlet device for a charger comprises an input port, a DC power supply unit, a control unit, a current sensor, a switch, and an output port. The input port of the power outlet device for a charger is used to receive an AC power, and the current sensor and the switch are controlled by the control unit to output the AC power from the output port. Wherein the control unit monitors and controls the current value according to the current sensor and the switch to determine transmission of the AC power so as to effectively manage power and save energy.Type: GrantFiled: September 11, 2006Date of Patent: February 19, 2008Assignee: Powertech Industrial Co., Ltd.Inventor: Yu-Lung Lee
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Patent number: 7332835Abstract: MEMS-based switching module, as may be electrically connected to other such modules in a series circuit, to achieve a desired voltage rating is provided. A switching array may be made up of a plurality of such switching modules (e.g., used as building blocks of the switching array) with circuitry configured so that any number of modules can be connected in series to achieve the desired voltage rating (e.g., voltage scalability).Type: GrantFiled: November 28, 2006Date of Patent: February 19, 2008Assignee: General Electric CompanyInventors: Joshua Isaac Wright, Kanakasabapathi Subramanian, William James Premerlani, John Norton Park, Kuna Venkat Satya Rama Kishore
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Patent number: 7332836Abstract: Guide bar drive in a knitting machine and method of driving guide bar. The drive includes a linear motor composed of a stator and a rotor, in which the linear motor is greater in height than width. The stator has a length in a longitudinal direction and includes at least one narrow side, and the rotor is structured and arranged in the stator for translational movement in the longitudinal direction. A guide rod is positioned adjacent the at least one narrow side and extending in the longitudinal direction to support the rotor. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.Type: GrantFiled: April 27, 2005Date of Patent: February 19, 2008Assignee: Karl Mayer Testilmaschinenfabrik GmbHInventor: Kresimir Mista
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Patent number: 7332837Abstract: Methods and apparatus are provided for an axial electric motor. The apparatus comprises, a stator having coils thereon for producing a magnetic field, a rotor rotated by the magnetic field, an output shaft coupled to the rotor, and a ring incorporating a coolant channel circumferentially engaging the stator for absorbing heat and reaction torque from the stator. It is preferable that that the ring have inwardly extending teeth that mesh with the coils on the stator. The space between the teeth and the coils is preferably filled with a substantially solid thermally conductive material to transmit stator reaction torque to the teeth and cool the stator. The coils are preferably formed from a flat ribbon a portion of whose principal surface is perpendicular to the teeth. A supporting frame is desirably fixedly coupled to the ring and rotatably coupled to the output shaft.Type: GrantFiled: July 29, 2004Date of Patent: February 19, 2008Assignee: General Motors CorporationInventors: Terence G. Ward, Khwaja M. Rahman, James M. Nagashima, Fabio Crescimbini, Federico Caricchi, Giorgio Lucchi
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Patent number: 7332838Abstract: To connect a motor shaft to a fan, a connection rod is used that is symmetrical in shape with respect to a longitudinal axis of the connection rod. The connection rod includes a first part formed with a hole in coaxial with the longitudinal axis, and a second part formed at least partially with a threaded portion. The motor shaft is attached to the connection rod by inserting the motor shaft into the hole of the first part of the connection rod. The fan is attached to the connection rod by inserting the second part of the connection rod into the center hole of the hub portion and supports the fan with a pair of nuts, one at one side of the hub portion and another at another side of the hub portion wherein the nuts are moved toward each other with the hub portion interposed therebetween.Type: GrantFiled: April 11, 2005Date of Patent: February 19, 2008Assignee: Hitachi Koki Co., Ltd.Inventor: Yoshitaka Akiba
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Patent number: 7332839Abstract: An electric machine includes a stator and a rotor interacting with the stator, wherein the stator and/or the rotor has/have a conducting device for guiding a magnetic flux. The conducting device includes a gap which is provided in a path of the magnetic flux, and a sensor which is received in the gap for measuring the magnetic flux.Type: GrantFiled: June 24, 2004Date of Patent: February 19, 2008Assignee: Siemens AktiengesellschaftInventors: Zeljko Jajtic, Gerhard Matscheko, Stefan Schiele
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Patent number: 7332840Abstract: A fan motor includes a printed circuit board (200), an IC (100) and an insulating frame (50) mounted on the printed circuit board. The insulating frame includes an annular main body (44) with a number of arms (11) extending radially from an outer-periphery thereof, and a retaining member (14) formed thereon corresponding to the IC. The retaining member includes a pressing portion (12) pressing the IC to prevent slant thereof.Type: GrantFiled: December 21, 2004Date of Patent: February 19, 2008Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Chin-Long Ku, Chin-Wen Yeh
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Patent number: 7332841Abstract: Provided is a cooler mounted in computer having a transparent case comprising a frame including a coil section including windings, a conductive first bearing on an upper center of the coil section, a conductive second bearing on a lower center of the coil section, and a rectification member electrically interconnected an AC power source and the coil section; a rotating assembly including blades, a conductive shaft passed the first and the second bearings, and a magnet spaced around the coil section, the magnet being magnetized by applying DC current from the rectification member to the coil section for rotating the rotating assembly; and a load placed on the rotating assembly and including LEDs and a conductive ring put on the shaft and biased against the first bearing. Applying AC to the rectification member will rotate the rotating assembly and cause LEDs to emit light.Type: GrantFiled: July 5, 2005Date of Patent: February 19, 2008Inventor: Sam Hsu
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Patent number: 7332842Abstract: A fan motor includes: a stepping motor for rotating a rotating shaft; an impeller rotated by the rotating shaft; and a connecting member for rotatably connecting the impeller relative to the rotating shaft. The connecting member absorbs an inertia force of the impeller while idly rotating the rotating shaft relative to the impeller in starting the motor and rotating the impeller to follow the rotating shaft as a revolution number of the rotating shaft increases.Type: GrantFiled: September 9, 2004Date of Patent: February 19, 2008Assignee: Nidec Copal CorporationInventors: Takashi Kasahara, Masaaki Takagi
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Patent number: 7332843Abstract: A pump apparatus includes a motor unit and a pump unit. The motor unit includes a cylindrical yoke housing and a rotor accommodated in the yoke housing. A rotary shaft of the rotor is supported by a first bearing and a second bearing. In a direction from a bottom wall of the yoke housing toward an opening of the yoke housing, the first bearing, an armature, a commutator, and a second bearing are arranged in this order on the rotary shaft. A base plate is attached to the opening of the yoke housing. The base plate has a through hole for receiving the second bearing. The commutator has an outer diameter greater than the inner diameter of the through hole. A disc spring is located between the bottom wall and the first bearing. The disc spring urges the rotor in a direction from the bottom wall toward the opening.Type: GrantFiled: October 14, 2005Date of Patent: February 19, 2008Assignee: ASMO Co., Ltd.Inventor: Naoyuki Tsukamoto
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Patent number: 7332844Abstract: An alternator comprises a housing including a first portion, and a second portion having a plurality of electrical connectors and having an aperture; a stator supported in the first portion of the housing; a rotor supported for rotation relative to the stator and configured to have a force current applied thereto; and a resistor coupled to the rotor and configured to reduce the current through the rotor, the resistor being removable and replaceable. Other apparatus and methods are provided.Type: GrantFiled: October 10, 2006Date of Patent: February 19, 2008Assignee: Lamar Technologies LLCInventors: Daniel L. Moore, George W. Panagotacos
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Patent number: 7332845Abstract: A rotor includes a shalt that defines a rotor axis, a first end portion coupled to the shaft, and a pole piece that defines an enclosed aperture therethrough. A second end portion is positioned to dispose the pole piece between the first end portion and the second end portion. A portion of one of the first end portion and the second end portion extends through the aperture and bonds with the other of the first end portion and the second end portion. The portion is integrally-formed as a single piece with one of the first end portion and the second end portion.Type: GrantFiled: November 20, 2006Date of Patent: February 19, 2008Assignee: A. O. Smith CoporationInventors: Robert J. Heideman, Dan M. Ionel
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Patent number: 7332846Abstract: A damping device for damping speed irregularities of a rotating shaft includes an armature having at least one armature part made of a non-ferromagnetic, electrically conductive material. An exciter configured to permeate the armature part in at least some regions with a magnetic flux. The armature, together with the at least one armature part, is movably supported relative to the exciter, transversely to the direction of the magnetic flux. In one region permeated by the magnetic flux in a position of normal use, the armature part has at least one opening in which a ferromagnetic flux-guide member is located.Type: GrantFiled: December 6, 2004Date of Patent: February 19, 2008Assignee: LuK Lamellen Kupplungsbau Beteiligungs KGInventor: Wolfgang Hill
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Patent number: 7332847Abstract: An electret actuator comprising a fixed substrate having driving electrodes of a plurality of phases arranged therein, a movable element arranged on the fixed substrate and made electret in similar polarity at predetermined pitches in portions which face the driving electrodes, and a driving control section configured to generate driving voltage patterns of a plurality of phases set at stages to move the movable element relative to the fixed substrate and a floating voltage pattern of a plurality of phases to float the movable element from the fixed substrate, and to apply the voltage patterns to the driving electrodes. The floating voltage pattern output from the driving control section has voltages similar to the electret charged polarity of the movable element.Type: GrantFiled: June 28, 2005Date of Patent: February 19, 2008Assignee: Olympus CorporationInventor: Kaoru Matsuki
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Patent number: 7332848Abstract: An actuator includes a piezoelectric element, and a displacement enlargement mechanism which has a movable portion configured to be displaced as the piezoelectric element is displaced and enlarges an amount of displacement of the piezoelectric element. A restraint member is fixed to the movable portion with an elastic or viscoelastic body therebetween and convert vibrational energy of the movable portion into thermal energy based on deformation of the elastic or viscoelastic body, thereby lowering a resonance peak amplitude of the actuator.Type: GrantFiled: March 24, 2006Date of Patent: February 19, 2008Assignee: Akita PrefectureInventor: Shigeki Mori
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Patent number: 7332849Abstract: A transducer for dynamic testing of specimen is disclosed. The transducer comprises at least two equally-spaced actuators, and a supporting block for supporting the at least two equally-spaced actuators and for mounting the transducer to the specimen. Each of the at least two equally-spaced actuators is an electrically powerable for providing to the specimen: a force or a moment. The actuators may be bimorphs and the transducer may be able to operate as an actuator, a sensor, and simultaneously as an actuator and a sensor. This may be for the transducer being able to operate as a sensor, for measurement of at least one selected from the group consisting of: an excitation force exerted on the specimen, an excitation moment exerts on the specimen, a resultant translational velocity of the specimen at an excitation point, and a rotational velocity of the specimen at the excitation point.Type: GrantFiled: May 19, 2006Date of Patent: February 19, 2008Assignee: Nanyang Technological UniversityInventors: Shih Fu Ling, Xiaoyan Hou
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Patent number: 7332850Abstract: The present invention provides a microfabricated ultrasonic transducers with curvature. The curvature is made possible by thinning the substrate such that it is flexible enough to be mounted on an assembly with the desired curvature. In one aspect of the invention, the substrate can contain electronic circuits. In another aspect, the assembly mounting can incorporate curved damping materials that serve to remove undesirable substrate modes.Type: GrantFiled: February 10, 2003Date of Patent: February 19, 2008Assignee: Siemens Medical Solutions USA, Inc.Inventors: Igal Ladabaum, Samuel H. Maslak
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Patent number: 7332851Abstract: A piezoelectric/electrostrictive film device is provided including a thin ceramic substrate and a piezoelectric/electrostrictive operating portion disposed on the substrate. The piezoelectric/electrostrictive operating portion includes a lower electrode film, a piezoelectric/electrostrictive film including a large number of crystal particles having a piezoelectric/electrostrictive composition, and an upper electrode film successively laminated on the substrate. The piezoelectric/electrostrictive composition excludes lead and contains one or more alkali metal elements selected from the group consisting of lithium, potassium, and sodium, and one or more metal elements selected from the group consisting of niobium, tantalum, antimony, and silver. Circle equivalent diameters of at least 90% of the crystal particles in the piezoelectric/electrostrictive film are in a range of 0.3 to 50 ?m.Type: GrantFiled: September 22, 2005Date of Patent: February 19, 2008Assignee: NGK Insulators, Ltd.Inventors: Tsutomu Nanataki, Hirofumi Yamaguchi, Toshikatsu Kashiwaya, Takaaki Koizumi
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Patent number: 7332852Abstract: An apparatus and method for microstructures of a display device which focus external light toward light-absorption regions to enhance brightness and contrast of the display device. The display device includes a light absorption layer disposed to one side of a light emission layer. The light absorption layer includes light refracting structures and light absorption elements, wherein each of the light absorption elements is positioned in the light refracting structures. The light directing structures substantially direct incident light toward one of the plurality of light absorption elements positioned therein to reduce the reflection of external light.Type: GrantFiled: July 2, 2004Date of Patent: February 19, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Gu Jin, Byoung-Ho Cheong, Hansol Cho, Joon-Yong Park, Jongsun Lim
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Patent number: 7332853Abstract: The invention relates to a lamp-reflector unit (3) provided with a first (15) and a second light source (17) axially disposed on a lamp axis (1), and a reflector (7) with a reflecting part (13). A modification of the reflecting part of the reflector to a shape somewhere in between a parabolic shape and a shape of a straight cone achieves that light of a narrow beam, i.e. a beam with a beam angle less than 15°, is obtained from the first light source, while the light beam as obtained from the second light source does not show any “optical hole” in its center.Type: GrantFiled: March 22, 2004Date of Patent: February 19, 2008Assignee: Koninklijke Philips Electronics, N.V.Inventors: Mathias Hubertus Johannes Van Rijswick, Denis Joseph Carel Van Oers, Andreas Martinus Theodorus Paulus Van Der Putten
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Patent number: 7332854Abstract: In an organic EL display device comprising a substrate, a plurality of pixel regions in each of which a first electrode, a light emitting material layer, and a second electrode are laminated in this order above the substrate, and a bank film formed above the substrate to separate respective one of the pixel regions from another of the pixel regions adjacent thereto, wherein the bank film has a plurality of openings exposing upper surfaces of the first electrodes to the light emitting material layers in the respective pixel regions, and the second electrode is formed over the a plurality of openings of the bank film in common with the pixel regions, the present invention forms the bank film of an inorganic material and shapes a side wall thereof lying around each of the openings thereof to be sloped at an angle less than 85 degrees (°) with respect to a principal surface of the substrate in order to prevent the deterioration of the light emitting material layer and disconnection of the second electrode at stepType: GrantFiled: March 20, 2006Date of Patent: February 19, 2008Assignee: Hitachi Displays, Ltd.Inventors: Kazuhiko Kai, Masaaki Okunaka, Naoyuki Ito
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Patent number: 7332855Abstract: The present invention provides a phosphor blend for wavelength conversion and a white light emitting device using the phosphor blend. Further disclosed is a white light emitting phosphor blend comprising 0.5˜18 wt % of A5(PO4)3Cl:Eu2+ (where A is at least one element selected from Sr, Ca, Ba and Mg), 0.7˜14 wt of D2SiO4:Eu (where D is at least one element selected from Ba, Sr and Ca), and 68˜98.5 wt % of G5EuS(WO4)2.5+1.5S:Sm (where G is at least one element selected from Li, Na and K; and s is a number between 1 and 5), based on the total weight of the phosphor blend.Type: GrantFiled: February 18, 2005Date of Patent: February 19, 2008Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jong Rak Sohn, Chul Soo Yoon, Joon Ho Yoon
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Patent number: 7332856Abstract: An image display device has a front substrate having an anode and phosphors, a rear substrate having electron sources and opposing the front substrate with a specified spacing therebetween, a support member which is sandwiched between the front and rear substrates, surrounds a display region, and maintains the specified spacing, and plural spacing-maintaining members which are sandwiched between the front and rear substrates in the display region, and are fixed at at least one of end faces of each of the spacing-maintaining members to a corresponding one of the front and rear substrates. Both end faces of the support member is hermetically sealed to the rear and front substrates, respectively. A height of the spacing-maintaining members is greater than that of the support member.Type: GrantFiled: October 21, 2005Date of Patent: February 19, 2008Assignee: Hitachi Displays, Ltd.Inventors: Yuuichi Kijima, Shigemi Hirasawa, Kenji Kato, Akira Hatori
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Patent number: 7332857Abstract: A region in which the concentration of a first organic compound and the concentration of a second organic compound change gradually (namely, a concentration change region 204b) exists within an organic compound film, and therefore a clear organic boundary does not exist. However, a region in which the first organic compound is capable of expressing its function (a first functional region) and a region in which the second organic compound is capable of expressing its function (a second functional region) exist, and therefore the function of each material can be expressed.Type: GrantFiled: January 10, 2002Date of Patent: February 19, 2008Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Shunpei Yamazaki
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Patent number: 7332858Abstract: A light emitting element containing an organic compound has a defect that the light emitting element is easily deteriorated by various factors; therefore, it is the biggest issue of the light emitting element that the light emitting element is formed with high reliability (longer lifetime). An objective of the present invention is to reduce or eliminate generation of the above described various defective modes of the light emitting element containing an organic compound. According to the present invention, current efficiency-luminance characteristics can be improved by orienting organic compound molecules in an applying direction of current. In addition, deterioration can be prevented by using a crystallization inhibitor.Type: GrantFiled: May 6, 2004Date of Patent: February 19, 2008Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Ryoji Nomura, Hiroko Abe, Shunpei Yamazaki
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Patent number: 7332859Abstract: For realizing an organic luminescence device of a high efficiency, the present invention provides an organic luminescence device having an anti-reflection film on a transparent electrode or on a moisture prevention layer.Type: GrantFiled: September 22, 2005Date of Patent: February 19, 2008Assignee: Canon Kabushiki KaishaInventors: Toshinori Hasegawa, Shuichi Kobayashi, Hikaru Hoshi
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Patent number: 7332860Abstract: A white light-emitting OLED device comprising: an anode and a cathode; at least four light-emitting layers provided between the anode and the cathode, wherein each of the four light-emitting layers produces a different emission spectrum when current passes between the anode and cathode, and such spectra combine to form white light; and wherein the four light-emitting layers include a red light-emitting layer, a yellow light-emitting layer, a blue light-emitting layer, and a green light-emitting layer, arranged such that: i) each of the light-emitting layers is in contact with at least one other light-emitting layer, ii) the blue light-emitting layer is in contact with the green light-emitting layer, and iii) the red light-emitting layer is in contact with only one other light-emitting layer.Type: GrantFiled: March 30, 2006Date of Patent: February 19, 2008Assignee: Eastman Kodak CompanyInventors: Tukaram K. Hatwar, Jeffrey P. Spindler
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Patent number: 7332861Abstract: Light-emitting structures of reduced size are realized with combinations of light-emitting diodes, resistive and conductive films, and interconnect members. Other embodiments are provided which simplify fabrication and assembly.Type: GrantFiled: February 5, 2004Date of Patent: February 19, 2008Assignee: Agilight, Inc.Inventor: William R. Ratcliffe
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Patent number: 7332862Abstract: In an LED lamp, a copper film is first formed on a substrate by plating. A resist is then bonded onto the copper film so that shaped like a ring viewed from the whole of the LED lamp. A nickel and a gold film are formed on a portion of the copper film where the resist is not bonded. Next, an adhesive agent is applied onto a bottom of the lamp house so that the lamp house is bonded onto the substrate through the adhesive agent. A transparent epoxy resin is packed in the frame of the lamp house and hardened by heating to perform resin sealing. Since the resist is bonded onto the surface of copper having a large number of fine irregularities sufficient to ensure a large contact area and excellent in adhesion, separation can be prevented from being caused by thermal stress.Type: GrantFiled: April 13, 2004Date of Patent: February 19, 2008Assignees: Toyoda Gosei Co., Ltd., Stanley Electric Co., Ltd.Inventors: Hiroko Tsukamoto, Hideki Mori, Atsushi Tsuzuki, Hisao Yamaguchi, Mahito Hamada, Toshimi Kamikawa
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Patent number: 7332863Abstract: A Plasma Display Panel (PDP) includes: an upper substrate; a lower substrate facing the upper substrate; upper barrier ribs disposed between the upper and lower substrates to define a plurality of discharge cells together with the upper substrate; discharge electrodes adapted to generate a discharge in the plurality of discharge cells; lower barrier ribs formed between the upper barrier rib and lower substrate along a row of the plurality of discharge cells to define a plurality of flow paths by which the discharge cells communicate with each other; a phosphor layer applied at the same level as the lower barrier ribs; and a discharge gas contained within the plurality of discharge cells. Flow resistance is reduced when an impure gas is exhausted and when the discharge gas is injected into the panel, and the product yield and quality of the display are improved, and light emission efficiency is improved and degradation of the phosphor material is avoided.Type: GrantFiled: October 21, 2005Date of Patent: February 19, 2008Assignee: Samsung SDI Co., Ltd.Inventor: Seung-Uk Kwon
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Patent number: 7332864Abstract: A plasma display panel is able to contrast thereof by increasing a color temperature of the plasma display panel, which comprises a dielectric layer controlling a light transmittance for visible light of a certain wavelength emitted from a phosphor in the plasma display panel.Type: GrantFiled: January 24, 2007Date of Patent: February 19, 2008Assignee: LG Electronics Inc.Inventor: Myeong Soo Chang
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Patent number: 7332865Abstract: A display panel device includes a front sheet that is glued on a front face of a plasma display panel. The front sheet includes a mesh made of a light shield member that has a blackened front surface and a plane size larger than a screen. A length between diagonal lattice points of the mesh is shorter than a cell pitch that is longer one of the cell pitches in the vertical direction and the horizontal direction of the screen. An arrangement direction of the mesh is inclined with respect to an arrangement direction of the cells in the screen.Type: GrantFiled: October 3, 2006Date of Patent: February 19, 2008Assignee: Fujitsu Hitachi Plasma Display LimitedInventors: Nobuyuki Hori, Yoshimi Kawanami, Atsuo Ohsawa, Fumihiro Namiki
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Patent number: 7332866Abstract: An arc tube includes an arc tube body and a pair of electrodes. The arc tube body is formed from a glass tube which is double-spirally wound from a middle portion to both ends around a spiral axis. The pair of electrodes are sealed at both ends of the arc tube body. Mercury is enclosed in the arc tube substantially in a single form. Each of the electrodes includes a multiple-coiled filament which is wound substantially one turn in a last coiling stage.Type: GrantFiled: May 27, 2004Date of Patent: February 19, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akiko Nakanishi, Kohhei Iwase, Kenji Nakano, Kenji Itaya, Seidou Tani, Noriyuki Uchida
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Patent number: 7332867Abstract: A lamp driving apparatus of a liquid crystal display device and method of driving lamps in a liquid crystal display are described. The lamp driving apparatus includes lamps that irradiate a liquid crystal display panel with light. An inverter receives a DC voltage from an exterior voltage source, converts the DC voltage into an AC signal and supplies the converted AC signal to the lamps. A feedback circuit is arranged between the inverter and the lamps. The feedback circuit detects currents from the lamps. An inspecting part is disposed between the feedback circuit and the lamps. The inspecting part contains light emitting devices to determine if each of the lamps is operating normally or has an abnormality.Type: GrantFiled: May 31, 2005Date of Patent: February 19, 2008Assignee: LG.Philips LCD. Co., LtdInventor: Guang Sup Cho
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Patent number: 7332868Abstract: The present discharge lamp lighting device is capable of rapid modulation in which a lamp current is rapidly reduced and rapidly restored. The current control circuit is provided to perform specific current control such that the brightness of a lamp is reduced by a predetermined percentage without being affected by a variation or change in lamp voltage over time, thereby reducing a lamp current.Type: GrantFiled: February 8, 2006Date of Patent: February 19, 2008Assignee: Ushio Denki Kabushiki KaishaInventors: Masashi Okamoto, Takanori Samejima
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Patent number: 7332869Abstract: A power supply apparatus includes an inverter controller, a power transforming part and a connecting part. The power transforming part converts a direct current supplied from the inverter controller into an alternating current to output first and second polarity currents. The connecting part outputs the first and second polarity currents to first and second end portions of a load through first and second terminals, respectively and has a third terminal to receive a sensed signal in response to the first or second polarity currents so as to output the sensed signal. The first terminal is spaced apart from the second terminal by a first insulating distance, and the third terminal is spaced apart from the first or second terminals adjacent to the third terminal by a second insulating distance. Therefore, the sensed signal is independent of the output power, thereby increasing the sensing efficiency.Type: GrantFiled: November 28, 2003Date of Patent: February 19, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Hyeong-Suk Yoo, Moon-Shik Kang
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Patent number: 7332870Abstract: An initial driving voltage fixing a desired luminance of a light-emitting source is set at a voltage lower than that of a power supply; the light-emitting source is driven by applying a light-emitting source driving voltage at the initial driving voltage; and then, a CPU determines whether or not the power supply voltage has dropped down the initial driving voltage. When the power supply voltage has become lower than the initial driving voltage, the CPU applies the light-emitting source driving voltage to the source at the power supply voltage, and holds an undervoltage information of the power supply that the power supply voltage has dropped. When the CPU detennined that the power supply voltage had returned higher than or equal to the initial driving voltage after holding the undervoltage information, the CPU gradually returns the light-emitting source driving voltage to the initial driving voltage.Type: GrantFiled: April 27, 2005Date of Patent: February 19, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kazuhito Funae, Takuya Shibata
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Patent number: 7332871Abstract: A precision voltage control circuit applicable to a PWM (Pulse Width Modulation) circuit can offer CCFL (Cold Cathode Fluorescent Lamp) or EEFL (External Electrode Fluorescent Lamp) tubes a stable high frequency voltage or current, so that each CCFL or EEFL tube can get an appropriate compensation current and an optimal emitting efficiency and enhance its emitting quality. The circuit also has an overload current, low current, and overload voltage and low voltage protective circuit to protect the CCFL or EEFL tubes from being injured. The circuit can also be applied to the TFT LCD TV or other large LCD panels, and develops the best display effect of each LCD tube.Type: GrantFiled: April 4, 2005Date of Patent: February 19, 2008Inventor: Chao-Cheng Lu
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Patent number: 7332872Abstract: An external electronic control type electrodeless lamp includes a lighting device. The lighting device includes a body having at least a first conductive plate and a second conductive plate. Each conductive plate is electrically connected to an electronic control system external to the lighting device. The body has a plurality of even-numbered sides. The number of the sides of the body is at least four. The conductive plates are mounted on at least two opposite sides of the body. The electronic control system includes a magnetic core that, when energized, creates a magnetic field, and current generated due to change in the magnetic field is supplied to the conductive plates to light the lighting device.Type: GrantFiled: October 23, 2006Date of Patent: February 19, 2008Assignee: Wujy Lighting Co., Ltd.Inventor: Chao-Lin Wu
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Patent number: 7332873Abstract: A portable fluorescent task lamp comprising at least two fluorescent bulbs of any wattage up to forty Watts and of either a non-starting type or a self-starting type; and an electronic ballast circuit for use therewith including an SPST function switch disposed in series with each fluorescent bulb, wherein the fluorescent bulbs may be ignited and sustained in illumination in parallel, simultaneously or individually, as determined by the respective SPST switches.Type: GrantFiled: February 6, 2006Date of Patent: February 19, 2008Assignee: Bayco Products, Ltd.Inventor: James Newton