Patents Represented by Attorney Andrews Kurth LLP
  • Patent number: 7790616
    Abstract: A method for producing a silicide contact. The method comprises the steps of depositing a metal on a SiC substrate; forming an encapsulating layer on deposited metal; and annealing said deposited metal to form a silicide contact. The encapsulating layer prevents agglomeration and formation of stringers during the annealing process.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: September 7, 2010
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Steven Mark Buchoff, Andrew Christian Loyd, Robert S. Howell
  • Patent number: 7785636
    Abstract: A first subject of the present invention is an insoluble powder characterized in that a zeta-potential is a negative value. It is preferable that barium sulfate is a main ingredient in the insoluble powder. It is preferable that an average primary particle diameter is 3 to 100 ?m, and an aspect ratio is 3 to 250 in the insoluble powder. It is preferable that the insoluble powder is a metal-doped barium sulfate powder obtained by reacting a barium ion and a sulfate ion in the presence of a metal ion. It is preferable that the metal ion is one or more selected from the group consisting of a lithium ion, a sodium ion and a zinc ion in the insoluble powder. A second subject of the present invention is a skin barrier function recovering powder, or a skin roughening preventing and improving powder, which comprises the aforementioned powder. A third subject of the present invention is a skin external composition characterized in that a content of the aforementioned powder is 1 to 40% by weight.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: August 31, 2010
    Assignee: Shiseido Co., Ltd.
    Inventors: Shigeyoshi Fujiwara, Mitsuhiro Denda, Katsuki Ogawa, Tsuyoshi Miyamoto, Sadaki Takata
  • Patent number: 7782118
    Abstract: A gate drive circuit for a wide bandgap semiconductor junction gated transistor includes a gate current limit resistor. The gate current limit resistor is coupled to a gate input of the wide bandgap semiconductor junction gated transistor when in use and limits a gate current provided to the gate input of the junction gated transistor. An AC-coupled charging capacitor is also included in the gate drive circuit. The AC-coupled charging capacitor is coupled to the gate input of the wide bandgap semiconductor junction gated transistor when in use and is positioned parallel to the gate current limit resistor. A diode is coupled to the gate current limit resistor and the AC-coupled charging capacitor on one end and an output of a gate drive chip on the other end When in use, the diode lowers a gate voltage output from the gate drive chip applied to the gate input of the wide bandgap semiconductor junction gated transistor through the gate current limit resistor.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: August 24, 2010
    Assignee: Northrop Grumman Systems Corporation
    Inventors: John Vincent Reichl, David Everett Bulgher, Ty R. McNutt
  • Patent number: 7783994
    Abstract: A system and a method for providing secure and trusted application specific integrated circuits (ASICs) using three-dimensional (3D) integrated circuit (IC) integration. The method includes fabricating a plurality of sub-circuits and assembling an overall 3D ASIC device from the plurality of sub-circuits. Each sub-circuit includes a plurality of input-output (IO) pads, is fabricated with a orientation point that indicates a compass orientation of the sub-circuit, and is rotationally symmetrical. The assembling includes determining the designed sub-circuit integration order, determining the designed orientation for each sub-circuit, stacking each sub-circuit per the determined integration order, and orienting each sub-circuit per the determined orientation, and wherein function and operation of the overall 3D ASIC device is determinable only from the assembled 3D ASIC stack and not the sub-circuits.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: August 24, 2010
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Harold Hasely Ball, Michael Robert Lucas, Anastasios P. Goutzoulis
  • Patent number: 7770898
    Abstract: A hydrodynamic sealing assembly including a first component having first and second walls and a peripheral wall defining a seal groove, a second component having a rotatable surface relative to said first component, and a hydrodynamic seal comprising a seal body of generally ring-shaped configuration having a circumference. The seal body includes hydrodynamic and static sealing lips each having a cross-sectional area that substantially vary in time with each other about the circumference. In an uninstalled condition, the seal body has a length defined between first and second seal body ends which varies in time with the hydrodynamic sealing lip cross-sectional area. The first and second ends generally face the first and second walls, respectively. In the uninstalled condition, the first end is angulated relative to the first wall and the second end is angulated relative to the second wall. The seal body has a twist-limiting surface adjacent the static sealing lip.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: August 10, 2010
    Assignee: Kalsi Engineering, Inc.
    Inventors: Lannie L. Dietle, John E. Schroeder
  • Patent number: 7765747
    Abstract: A method and apparatus for producing a downward, wind-induced lift force on a structure including attaching one or more omni-directional mushroom-shaped airfoil assemblies to the top of the structure which create a downward lift force as they are subjected to wind flow.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: August 3, 2010
    Inventor: Arthur L. Smalley, III
  • Patent number: 7767959
    Abstract: Analysis of solid chemical and biological particles is achieved by a miniature mass spectrometer and apparatus attached thereto for vaporizing or ablating a stream of chemical and biological particles by a pulsed laser and/or pyrolysis heater sub-assembly at atmospheric pressure or, when desirable, in a vacuum. The mass spectrometer includes a collimation chamber, a repeller assembly, an internal ionization chamber, a mass filter and ion separation chamber, a drift space region, and a multi-channel ion detection array so as to permit the collection and analysis of ions formed over a wide mass range simultaneously. The apparatus for vaporizing or ablating includes an output port adjacent the input to the collimation and vaporization chamber so as to maximize the amount of vaporized material being fed into the mass spectrometer.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: August 3, 2010
    Assignee: Northrop Grumman Corporation
    Inventor: Carl B. Freidhoff
  • Patent number: 7762361
    Abstract: A powered omni-directional aircraft and ordinance handling vehicle which, in one embodiment, includes a circular frame and two drive wheels capable of independent powered forward and rearward rotation about a horizontal axis. The drive wheels are adapted to allow the vehicle to spin in place about a vertical axis which intersects the horizontal axis midway between the drive wheels and which is generally centered in the circular frame. A turret is rotatively mounted to the frame such that it is capable of rotation about the vertical axis, and an articulated ordinance handling arm is mounted to the turret. A castor is mounted to the frame for supporting the frame on the ground. A control system enables the vehicle to rotate in place to change headings while maintaining ordinance carried by the arm motionless with respect to the ground and to perform repetitive precise multi-axis motion control of the vehicle.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: July 27, 2010
    Assignee: Hammonds Technical Services, Inc.
    Inventor: Carl L. Hammonds
  • Patent number: 7759112
    Abstract: Methods and devices for isolating nucleic acids from a mixture containing such nucleic acids and extraneous matter are provided. In one embodiment, the method of the invention comprises passing the mixture through a glass frit under conditions effective to separate the nucleic acids from the extraneous matter. In a more specific embodiment, the glass frit is a sintered glass frit.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 20, 2010
    Assignee: Akonni Biosystems, Inc.
    Inventor: Philip Belgrader
  • Patent number: 7723044
    Abstract: This invention generally relates to apparatus and methods for high-throughput, reproducible and inexpensive detection of virus infection using multiplexing technologies such as slide-based, microtiter plate-based and membrane-based microarrays and beads technologies. The apparatus and methods allow simultaneous detection of multiple viral infections in a plurality of test samples.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: May 25, 2010
    Assignee: Allied Biotech, Inc.
    Inventors: Yongyi Yu, Lina Li, Zhuangwu Li, Jun Bao
  • Patent number: 7725501
    Abstract: A system and a method for rapid database application deployment and use. A system includes a host server that includes a database and a database application framework. The database stores a virtual relational database structure and a virtual relational database implementation. The database may store the virtual relational database structure and virtual relational database implementation in an existing relational database structure. The virtual relational database structure includes one or more object types and one or more object properties. Object types are definitions of types of objects for which data may be stored in the database and object properties are definitions of types of data that may be stored for objects and are associated with the one or more object types.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: May 25, 2010
    Assignee: Northrop Grumman Corporation
    Inventors: Jerry M. Stillman, David J. Mettenburg, Dayle S. Yamatani, Patrick E. Hinnershitz, John E. Essing
  • Patent number: 7718256
    Abstract: Thermal interface materials are essential for proper operation of electronic assemblies. They are used between surface mount components and printed wiring boards and between printed wiring boards and metal heat sinks. Their function is to bond the components together and allow good heat transfer between the parts being bonded. The approach disclosed in this invention is a fully-cured, flexible, filled elastomer that is coated on both sides with a partially cured, filled adhesive, which can be conveniently made by a low cost tape casting process. This unique approach offers a combination of good adhesion to both bonding surfaces, good heat transfer, compliance to accommodate mismatched coefficient of thermal expansion, rework capability, control of flow of the adhesive during cure, and easy handling of uncured material.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: May 18, 2010
    Assignee: Northrop Grumman Corporation
    Inventors: Paul P. Frank, Kenneth C. Radford, Karl F. Schoch, Jr., Eileen M. Wojtal, Philip A. Panackal
  • Patent number: 7720243
    Abstract: A device and method for tailoring the audio frequency response of a hearing instrument, such as a hearing aid, by altering the physical characteristics of the device to more accurately compensate for a user's specific hearing loss attributes. The device has a bore formed within its housing which provides a passage for the transmission of sound from the receiver of the hearing instrument toward the user's eardrum. The bore has a custom-designed geometric shape to emphasize desired sound frequencies and therefore produce a predetermined frequency response of sound in combination with any frequency response changes directed by the hearing instrument's circuitry.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: May 18, 2010
    Assignee: Synygis, LLC
    Inventors: Mark A. Brumback, Dustin L. Potter, John S. Freeman
  • Patent number: 7719055
    Abstract: A normally-off cascode power switch circuit is disclosed fabricated in wide bandgap semiconductor material such as silicon carbide or gallium nitride and which is capable of conducting current in the forward and reverse direction under the influence of a positive gate bias. The switch includes cascoded junction field effect transistors (JFETs) that enable increased gain, and hence blocking voltage, while minimizing specific on-resistance.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: May 18, 2010
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Ty R. McNutt, John V. Reichl, Harold C. Heame, III, Eric J. Stewart, Stephen D. Van Campen, Victor D. Veliadis
  • Patent number: 7717762
    Abstract: A mooring system comprising a submerged buoy releasably connectable to a vessel keel having a combined axial/radial bearing. A segmented ring, fastened to the buoy, forms the bearing outer ring. An inner bearing hub slidingly carried on the bearing outer ring is connectable to a vessel structural connector. In a first embodiment, the structural connector includes an inner cylindrical sleeve coaxially movable within an outer cylindrical housing by circumferential actuators. The lower ends of the connector sleeve and connector housing capture plural collet segments circumpositioned therebetween that radially move in and out as the connector sleeve is moved axially within the connector housing. The lower ends of the collet segments extend downward into the bearing hub and releasably engage an interior groove therein, thereby dogging the bearing hub against the vessel. In a second embodiment, the bearing hub is simply bolted directly to a cylindrical connector member of the vessel.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: May 18, 2010
    Assignee: SOFEC, Inc.
    Inventors: L. Terry Boatman, Stephen P. Lindblade
  • Patent number: 7714386
    Abstract: A carbon nanotube field effect transistor includes a substrate, a source electrode, a drain electrode and a carbon nanotube. The carbon nanotube forms a channel between the source electrode and the drain electrode. The carbon nanotube field effect transistor also includes a gate dielectric and a gate electrode. The gate electrode is separated from the carbon nanotube by the gate dielectric, and an input radio frequency voltage is applied to the gate electrode.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: May 11, 2010
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Aaron Anthony Pesetski, Hong Zhang, John Douglas Adam, John Przybysz, Jim Murduck, Norman Goldstein, James Baumgardner
  • Patent number: 7712556
    Abstract: An omni direction vehicle with a frame having a round surface about its perimeter with no apparatus mounted on the frame extending beyond the perimeter. Two independent drive wheels located on an axis through the center of the frame are mounted at the same distance from a central vertical axis through the frame. Each wheel is powered independently of the other and can rotate at variable speeds in either direction. The vehicle is capable of movement in any direction by rotating the axis of the drive wheels to a position which is perpendicular to the desired direction of travel. The vehicle can spin about its vertical axis such that the axis of the drive wheels can be oriented at any direction without changing the original footprint of the space that the frame occupies over the ground. Thus, the vehicle requires a zero turning radius and requires only the space it occupies to change its forward orientation.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: May 11, 2010
    Assignee: Hammonds Technical Services, inc.
    Inventor: Carl L. Hammonds
  • Patent number: 7715010
    Abstract: A flow-through gas cell and a method for passing a sample gas through a flow-through gas cell for spectroscopy are disclosed. In an embodiment, a flow-through gas cell is disclosed. The gas cell includes a substantially cylindrical interior cavity. The interior cavity comprises an inner surface that is reflective. In addition, the gas cell includes a gas inlet and a gas outlet. In the gas cell, a source is disposed on a side of the gas cell, and a detector is disposed on the same side of the gas cell as the source. The source emits electromagnetic radiation, and the detector detects electromagnetic radiation. The gas cell further includes mirrors disposed on opposing ends of the interior cavity.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: May 11, 2010
    Assignee: O.I. Corporation
    Inventors: Nathan C. Rawls, Armando Solar, Kevin D. Morris
  • Patent number: 7711791
    Abstract: A method, apparatus and article of manufacture for processing a content stream at a client computer, the method comprising displaying a tagged content stream that was received from a media source by using a first media player, wherein the first media player is embedded in a Web page; and, when the first media player receives notification that a tag was found, muting the first media player; and displaying an untagged content stream by using a second media player, wherein the second media player is embedded in the Web page.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: May 4, 2010
    Assignee: Clear Channel Management Services, Inc.
    Inventors: Mark DuVall, Alan Gilbert
  • Patent number: 7710235
    Abstract: Novel applications of nanocoil technology and novel methods of fabricating nanocoils for use in such applications and others. Such applications include inductors or traveling wave tubes fabricated from spiral nanocoils. Such applications includes inductors or traveling wave tubes fabricated from a method for fabricating nanocoils with a desired pitch. Such a method includes determining a desired pitch for fabricated nanocoil, selecting coiling arm orientation in which coiling arm orientation is arm angle between coiling arm an crystalline orientation of underlying substrate, whereby coiling arm orientation affects pitch of fabricated nanocoil, patterning coiling arm structure with selected coiling arm orientation, and, releasing coiling arm, whereby fabricated nanocoil is formed.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: May 4, 2010
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Garrett A. Storaska, Robert S. Howell