Patents by Inventor Fang Yu-Yueh

Fang Yu-Yueh 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).

  • Laser-induced breakdown spectroscopy for specimen analysis
    Patent number: 7092087
    Abstract: The present invention is directed to an apparatus, a system and a method for detecting the presence or absence of trace elements in a biological sample using Laser-Induced Breakdown Spectroscopy. The trace elements are used to develop a signature profile which is analyzed directly or compared with the known profile of a standard. In one aspect of the invention, the apparatus, system and method are used to detect malignant cancer cells in vivo.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: August 15, 2006
    Assignee: Mississippi State University
    Inventors: Akshaya Kumar, Fang Yu-Yueh, Shane C. Burgess, Jagdish P. Singh
  • Fiber optic laser-induced breakdown spectroscopy device and methods of use
    Publication number: 20050200843
    Abstract: The present invention is directed to an apparatus, a system and a method for detecting the presence or absence of trace elements in a biological sample using Laser-Induced Breakdown Spectroscopy. The trace elements are used to develop a signature profile which is analyzed directly or compared with the known profile of a standard. In one aspect of the invention, the apparatus, system and method are used to detect malignant cancer cells in vivo.
    Type: Application
    Filed: September 16, 2003
    Publication date: September 15, 2005
    Inventors: Akshaya Kumar, Fang Yu-Yueh, Shane Burgess, Jagdish Singh
  • Fiber optic laser-induced breakdown spectroscopy sensor for molten material analysis
    Patent number: 6762835
    Abstract: A fiber optic laser-induced breakdown spectroscopy (LIBS) sensor, including a laser light source, a harmonic separator for directing the laser light, a dichroic mirror for reflecting the laser light, a coupling lens for coupling the laser light at an input of a multimode optical fiber, a connector for coupling the laser light from an output of the multimode optical fiber to an input of a high temperature holder, such as a holder made of stainless steel, and a detector portion for receiving emission signal and analyzing LIBS intensities. In one variation, the multimode optical fiber has silica core and silica cladding. The holder includes optical lenses for collimating and focusing the laser light in a molten alloy to produce a plasma, and for collecting and transmitting an emission signal to the multimode optical fiber.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: July 13, 2004
    Assignee: Mississippi State University
    Inventors: Hansheng Zhang, Awadesh K. Rai, Jagdish P. Singh, Fang-Yu Yueh
  • Fiber optic laser-induced breakdown spectroscopy sensor for molten material analysis
    Publication number: 20030174325
    Abstract: A fiber optic laser-induced breakdown spectroscopy (LIBS) sensor, including a laser light source, a harmonic separator for directing the laser light, a dichroic mirror for reflecting the laser light, a coupling lens for coupling the laser light at an input of a multimode optical fiber, a connector for coupling the laser light from an output of the multimode optical fiber to an input of a high temperature holder, such as a holder made of stainless steel, and a detector portion for receiving emission signal and analyzing LIBS intensities. In one variation, the multimode optical fiber has silica core and silica cladding. The holder includes optical lenses for collimating and focusing the laser light in a molten alloy to produce a plasma, and for collecting and transmitting an emission signal to the multimode optical fiber.
    Type: Application
    Filed: March 18, 2002
    Publication date: September 18, 2003
    Inventors: Hansheng Zhang, Awadesh K. Rai, Jagdish P. Singh, Fang-Yu Yueh
  • Analytical method using laser-induced breakdown spectroscopy
    Patent number: 5751416
    Abstract: The invention relates to an analytical method using laser-induced breakdown spectroscopy.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: May 12, 1998
    Assignee: Mississippi State University
    Inventors: Jagdish P. Singh, Fang-Yu Yueh, Robert L. Cook, Hansheng Zhang