Patents by Inventor Xiao-Dong Sun

Xiao-Dong Sun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20040251420
    Abstract: Method, components, design and fabrication process of a advanced X-ray flat panel detector (FPD), with built-in anti-scattering grid to reduce the X-ray scattering are disclosed. We further disclose two methods in the new X-ray detector: In the first method, the grid is placed on top of X-ray scintillator layer of a FPD, the pixels of X-ray FPD underneath are aligned with the hole structures of anti-scatter grids. The high performance anti-scatter grid applied and aligned to the flat panel detector (FPD) pixel-by-pixel can significantly reduce the noise from the scattered X-rays. The key advantages of the improved art are substantial reduction of grid shadow, improved image contrast-to-noise ratio (CNR) and minimized attenuation of direct X-rays. The new FPD with built-in grid may significantly enhance X-ray imaging system performance for a FPD based digital detection system with high image quality, high throughput and low cost for many X-ray imaging applications.
    Type: Application
    Filed: June 12, 2004
    Publication date: December 16, 2004
    Inventor: Xiao-Dong Sun
  • Publication number: 20040232826
    Abstract: A system and a method of a transparent color image display utilizing fluorescence conversion (FC) of nano-particles and molecules are disclosed. In one preferred embodiment, a color image display system consists of a light source equipped with two-dimensional scanning hardware and a FC display screen board. The FC display screen board consists of a transparent fluorescence display layer, a wavelength filtering coating, and an absorption substrate. In another preferred embodiment, two mechanisms of light excitation are utilized. One of the excitation mechanisms is up-conversion where excitation light wavelength is longer than fluorescence wavelength. The second mechanism is down-conversion where excitation wavelength is shorter than fluorescence wavelength. A host of preferred fluorescence materials for the FC screen are also disclosed. These materials fall into four categories: inorganic nanometer sized phosphors; organic molecules and dyes; semiconductor based nano particles; and organometallic molecules.
    Type: Application
    Filed: May 18, 2004
    Publication date: November 25, 2004
    Inventors: Jianqiang Liu, Xiao-Dong Sun
  • Publication number: 20040227694
    Abstract: A system and a method of a three-dimensional color image display utilizing laser induced fluorescence (LIF) of nano-particles and molecules in a transparent medium are disclosed. In one preferred embodiment, a three-dimensional display volume contains three types (for red, green and blue color) of LIF nano-particles and/or molecules dispersed in a random, uniform fashion in a transparent, fluid like medium. In another preferred embodiment, a color image display system consists of at least two light sources each equipped with two-dimensional scanning hardware and a LIF display volume, a protective coating and at least two light sensors. The protective wavelength filtering coating blocks intense excitation light sources from harming image viewers while passing the LIF display light. The light sensors provide calibration and timing reference signals to maintain stable performance. A host of preferred fluorescence materials are also disclosed.
    Type: Application
    Filed: May 10, 2004
    Publication date: November 18, 2004
    Inventors: Xiao-Dong Sun, Jian-Qiang Liu
  • Patent number: 6794052
    Abstract: Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to predefined regions on a substrate, and simultaneously reacting the components to form at least two materials. Materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, ionic solids and molecular solids. More particularly, materials which can be prepared using the methods and apparatus of the present invention include, for example, inorganic materials, intermetallic materials, metal alloys, ceramic materials, organic materials, organometallic materials, non-biological organic polymers, composite materials (e.g., inorganic composites, organic composites, or combinations thereof), etc.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: September 21, 2004
    Assignees: The Regents of the University of California, Symyx Technologies, Inc.
    Inventors: Peter G. Schultz, Xiao-Dong Xiang, Isy Goldwasser, Gabriel BriceƱo, Xiao-Dong Sun
  • Patent number: 6780648
    Abstract: A method comprises positively displacing a first candidate luminescence material precursor from a dispenser to a first position of an array, displacing a second candidate luminescence material precursor from a dispenser mechanism to a second position of an array and simultaneously reacting the first and second candidates to produce a library of luminescence materials. A combinatorial high throughput screening liquid dispenser assembly comprises a battery of positive displacement driven dispensers for dispensing solutions of precursor luminescence materials, an array plate with wells to receive dispensed solution from the dispenser, a robotic positioning table supporting the array plate to position wells beneath respective dispensers and a controller to control dispensing of the solutions and positioning of the plate.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: August 24, 2004
    Assignee: General Electric Company
    Inventor: Xiao-Dong Sun
  • Publication number: 20040154704
    Abstract: Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to predefined regions on a substrate, and simultaneously reacting the components to form at least two materials. Materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, ionic solids and molecular solids. More particularly, materials which can be prepared using the methods and apparatus of the present invention include, for example, inorganic materials, intermetallic materials, metal alloys, ceramic materials, organic materials, organometallic materials, non-biological organic polymers, composite materials (e.g., inorganic composites, organic composites, or combinations thereof), etc.
    Type: Application
    Filed: February 4, 2004
    Publication date: August 12, 2004
    Applicant: The Regents of the University of California and Symyx Technologies, Inc.
    Inventors: Peter G. Schultz, Xiao-Dong Xiang, Isy Goldwasser, Gabriel Briceno, Xiao-Dong Sun, Kai-An Wang
  • Publication number: 20040062691
    Abstract: Crystallization Photoresist (PR) apparatus and methods which allow for fast screening and determination of protein crystallization conditions with small protein quantities and rapid crystallization. The apparatus comprise a first region comprising a first nucleation catalyst material and a second region comprising a second nucleation catalyst material, with the first and second regions positioned adjacent to each other and configured to support at least one crystal, and with the first region having a variation in a nucleation property of the first nucleation catalyst material in the first region. The crystal may be supported at an interface of the adjacent regions.
    Type: Application
    Filed: October 24, 2003
    Publication date: April 1, 2004
    Inventors: Robert C Haushalter, Xiao-Dong Sun
  • Patent number: 6689613
    Abstract: A combinatorial method is provided for the preparation and screening of heterogeneous catalysts. The method comprises the steps of: (I) providing a library of elemental catalysts; (II) reacting the catalysts with a carbon source to form product directly on the catalyst; and (III) screening the products to evaluate the catalysts.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: February 10, 2004
    Assignee: General Electric Company
    Inventors: Xiao-Dong Sun, Navjot Singh
  • Patent number: 6686311
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: February 3, 2004
    Assignee: General Electric Company
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Publication number: 20040014077
    Abstract: Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to predefined regions on a substrate, and simultaneously reacting the components to form at least two materials. Materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, ionic solids and molecular solids. More particularly, materials which can be prepared using the methods and apparatus of the present invention include, for example, inorganic materials, intermetallic materials, metal alloys, ceramic materials, organic materials, organometallic materials, non-biological organic polymers, composite materials (e.g., inorganic composites, organic composites, or combinations thereof), etc.
    Type: Application
    Filed: January 23, 2003
    Publication date: January 22, 2004
    Inventors: Peter G. Schultz, Xiao-Dong Xiang, Isy Goldwasser, Gabriel Briceno, Xiao-Dong Sun, Kai-An Wang
  • Publication number: 20040007694
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Application
    Filed: December 16, 2002
    Publication date: January 15, 2004
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Publication number: 20030211542
    Abstract: Among other things, assays and methods of diagnosis and treatment of disease (e.g., Alzheimer's disease) based on the surprising observation of an interaction between amyloid &bgr; or its aggregates with the sodium channel are provided. In particular, methods to identify compounds that modulate this interaction are provided, as well as methods of diagnosis and treatment that are based on this interaction.
    Type: Application
    Filed: May 14, 2003
    Publication date: November 13, 2003
    Inventors: Kai S. Lee, Xiao-Dong Sun, Bruce M. Taylor, Dennis E. Epps, Allen E. Buhl
  • Publication number: 20030166263
    Abstract: An improved apparatus for producing microarrays of chemical and biochemical materials. The apparatus includes one or more pins, a holder for the pins and a dispensing tray for holding one or more liquids. The apparatus is microfabricated from semiconductor materials such as silicon, silicone oxides, silicon carbide, silicon nitride, polymers, ceramics, non-ferric alloys using chemical and physical microfabrication and photolithographic techniques.
    Type: Application
    Filed: December 30, 2002
    Publication date: September 4, 2003
    Inventors: Robert C. Haushalter, Xiao-Dong Sun
  • Patent number: 6604971
    Abstract: A method of manufacturing an LED lamp includes dispersing color correction particles throughout a suspension media to a viscosity of substantially 2000 cP. In the case of correcting blue GaN LEDs to white light, the particles to be blended are phosphorus having a diameter of less than 20 microns. An LED die is mounted onto a stage and a nano-liter pipette is arranged such that an interface separation of approximately 1 millimeter is achieved between the tip of the pipette and the surface of the LED die. Once the relatively viscous suspension media covers the LED die, ultraviolet light is directed towards the suspension media to cure it. Heat is then applied to further cure the suspension media until solid as observed under a microscope.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: August 12, 2003
    Assignee: General Electric Company
    Inventors: Xiao-Dong Sun, Robert J. Wojnarowski, Raul E. Ayala, Thomas F. McNulty
  • Patent number: 6605258
    Abstract: A liquid chemical stripping or cleaning solution is selected by combinatorial high throughput screening. A high throughput screening well array assembly includes (A) a metal substrate and (B) a mask that defines an array of wells on the substrate. A combinatorial high throughput screening system includes (A) a metal substrate and (B) a mask that defines an array of wells on the substrate and a reaction vessel to receive the well array assembly.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: August 12, 2003
    Assignee: General Electric Company
    Inventors: John Robert LaGraff, Xiao-Dong Sun, James Anthony Ruud, James Claude Carnahan
  • Publication number: 20030149163
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Application
    Filed: December 16, 2002
    Publication date: August 7, 2003
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Publication number: 20030134089
    Abstract: Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to predefined regions on a substrate, and simultaneously reacting the components to form at least two materials. Materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, ionic solids and molecular solids. More particularly, materials which can be prepared using the methods and apparatus of the present invention include, for example, inorganic materials, intermetallic materials, metal alloys, ceramic materials, organic materials, organometallic materials, non-biological organic polymers, composite materials (e.g., inorganic composites, organic composites, or combinations thereof), etc.
    Type: Application
    Filed: August 22, 2002
    Publication date: July 17, 2003
    Inventors: Peter G. Schultz, Xiao-Dong Xiang, Isy Goldwasser, Gabriel Briceno, Xiao-Dong Sun
  • Patent number: 6589747
    Abstract: Among other things, assays and methods of diagnosis and treatment of disease (e.g., Alzheimer's disease) based on the surprising observation of an interaction between amyloid &bgr; or its aggregates with the sodium channel are provided. In particular, methods to identify compounds that modulate this interaction are provided, as well as methods of diagnosis and treatment that are based on this interaction.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: July 8, 2003
    Assignee: Pharmacia & Upjohn Company
    Inventors: Kai S. Lee, Xiao-Dong Sun, Bruce M. Taylor, Dennis E. Epps, Allen E. Buhl
  • Publication number: 20030104935
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Application
    Filed: December 11, 2002
    Publication date: June 5, 2003
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Publication number: 20030104934
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Application
    Filed: December 11, 2002
    Publication date: June 5, 2003
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson