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  • Inventor(s):
    Allen H. Simpson, Mark L. La Forest, Alexander Mukasyan
    Patent Number:
    US 8574470 B2
    Description:

    Method of joining a carbon-carbon composite piece 30 together with a metal insert 20, e.g. in the manufacture of aircraft brake discs 10. The method includes the steps of: providing a carbon-carbon composite piece 30 and a metal insert 20, wherein the metal insert 20 has a surface that is complementary to a surface of said carbon-carbon composite piece 30; providing a layer of a mixture of titanium powder and carbon powder on the first complementary mating surface; arranging the powder layer …

    Date Issued:
    2013-11-05
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    John Simon, Debdeep Jena, Huili (Grace) Xing
    Patent Number:
    US 8835998 B2
    Description:

    A compositionally graded semiconductor device and a method of making same are disclosed that provides an efficient p-type doping for wide bandgap semiconductors by exploiting electronic polarization within the crystalline lattice. The compositional graded semiconductor graded device includes a graded heterojunction interface that exhibits a 3D bound polarization-induced sheet charge that spreads in accordance with .rho..sub..pi.(z)=-.gradient.P(z), where .rho..sub..pi.(z) is a volume charge d…

    Date Issued:
    2014-09-16
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Shramik Sengupta, Hsueh-Chia Chang
    Patent Number:
    US 8635028 B2
    Description:

    An improved system and method is provided for detecting viable bacteria in a suspension sample. A sample of a suspension in which bacterial presence is suspected is collected from a source and a portion of the sample transferred to a microfluidic unit. A series of analysis signals at different frequencies are applied to the sample portion. An impedance is measured via a signal analyzer for the sample portion for each of the analysis signals to define an impedance data set. An initial bulk cap…

    Date Issued:
    2014-01-21
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Berardi Sensale-Rodriguez, Huili (Grace) Xing, Rusen Yan, Michelle M. Kelly, Tian Fang, Debdeep Jena, Lei Liu
    Patent Number:
    US 8836446 B2
    Description:

    A wave amplitude modulator for modulating a transmitted electromagnetic wave includes one or multiple self-gated capacitively coupled pair(s) of electron layers such as semiconductor or semimetal layers. Two electrical contacts are placed to each layer of electrons of the self-gated pair(s), and a power source is electrically connected to them. The power source, by varying the voltage applied between layers of electrons, tunes the electron density thereof, thereby adjusting the optical conduc…

    Date Issued:
    2014-09-16
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Timothy C. Ovaert
    Patent Number:
    US 8919066 B2
    Description:

    An apparatus including an impact surface and a plurality of spaced apart stiffening columns extending from an underside of the flooring plate. The columns remain substantially rigid up to a predetermined critical pressure and then buckle as the pressure increases. The columns are at least partially surrounded by a resilient underlayment. Deflection stops may extend from the flooring plate to prevent over-buckling and/or permanent deformation of the stiffening columns. In some examples, the de…

    Date Issued:
    2014-12-30
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Zhou Yu, Evgeny Drapkin, Bruno Kristiaan Bernard De Man, Jean-Baptiste Thibault, Kai Zeng, Jiang Hsieh, Brian E. Nett, Debashish Pal, Lin Fu, Guangzhi Cao, Charles A. Bouman, Ken D. Sauer
    Patent Number:
    US 9020230 B2
    Description:

    A method for reconstructing an image of an object that includes a plurality of image elements. The method includes accessing image data associated with a plurality of image elements, and reconstructing an image of the object by optimizing an objective function, where the objective function is optimized by iteratively solving a nested sequence of approximate optimization problems. The algorithm is composed of nested iterative loops, in which an inner loop iteratively optimizes an objective fun…

    Date Issued:
    2015-04-28
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Jason C. Hicks, Gregory T. Neumann
    Patent Number:
    US 8969599 B2
    Description:

    The invention provides a catalyst system for catalytic fast pyrolysis comprising a cerium-incorporated HZSM-5 zeolite (Catalyst 1), and methods of making and using the same. The invention also provides a process for reducing coke formation during catalytic fast pyrolysis of biomass using HZSM-5, wherein the process can include incorporating cerium into the HZSM-5 zeolite to produce Catalyst 1 prior to the catalytic fast pyrolysis.

    Date Issued:
    2015-03-03
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Jean-Baptiste Thibault, Xue Rui, Somesh Srivastava, Ken D. Sauer, Lin Fu, Charles A. Bouman
    Patent Number:
    US 9261467 B2
    Description:

    A system and method include acquisition of projection data from a scanned object, the set of projection data comprising a plurality of projection measurements. The system and method also include calculation of a set of modified statistical weights from the projection data, wherein a respective modified statistical weight of the set of modified statistical weights comprises a deviation from an inverse variance of a corresponding projection measurement of the projection data. The system and met…

    Date Issued:
    2016-02-16
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Wolfgang Porod, Gary H. Bernstein, Alexei Orlov, Gergo P. Szakmany
    Patent Number:
    US 9577173 B2
    Description:

    Nanoscale thermocouples are made of a single material and are shape-engineered to contain one or more variations in their width along their length. The mono-metallic nanowire junctions resulting from the width variation(s) exploit a difference in the Seebeck coefficient that is present at these size scales. Such devices have a wide variety of uses and can be coupled with an antenna in order to serve as an infrared detector.

    Date Issued:
    2017-02-21
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Douglas C. Hall, Scott Howard, Anthony Hoffman, Gary H. Bernstein, Jason M. Kulick
    Patent Number:
    US 9620473 B1
    Description:

    First and second integrated devices each have an optical component and a plurality of interconnect structures disposed one edge thereon. The first edge surface of the second integrated device is positioned contiguous to the first edge surface of the first integrated device. The interconnect structures disposed on the first integrated device are in physical contact with the interconnect structures disposed on the edge surface of the second integrated device so as to provide alignment for conve…

    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Mark L. La Forest, Allen H. Simpson, Slawomir T. Fryska, Alexander Mukasyan
    Patent Number:
    US 8383197 B2
    Description:

    A metal powder is applied to the surface of the area of a carbon-carbon composite brake disc to be protected against migration of antioxidant. The metal powder may be titanium powder or tungsten powder. A chemical reaction between the metal powder and carbon is then initiated by heating the powder-coated brake to the ignition temperature via application of electric current (Joule preheating) or by heating it in a furnace. Upon combustion, the metal particles react with carbon in the composite…

    Date Issued:
    2013-02-26
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Allen H. Simpson, Slawomir T. Fryska, Mark L. La Forest, Roger L. Klinedinst, Alexander Mukasyan, Charles D. D'Amico
    Patent Number:
    US 8448685 B2
    Description:

    An apparatus for bonding a first carbon composite to a second carbon composite through a reactant layer includes a housing, and a pair of conductive press plates electrically isolated from the housing. The press plates are adapted to position the two parts to be bonded with a reactant layer therebetween. The press plates are subjected to an electrical potential and a clamping force, sufficient to initiate a combustion reaction that creates a molten ceramic to bond together the carbon-carbon c…

    Date Issued:
    2013-05-28
    Record Visibility:
    Public
    Resource Type
    Patent