Patents by Inventor Chang-Ying J. Yang

Chang-Ying J. Yang 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).

  • Bone mineral density assessment using mammography system
    Patent number: 7965813
    Abstract: A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be performed on the image. The system for determining the bone mineral density of a body extremity includes: a support for supporting the body extremity; a detector for capturing an image of the body extremity; and an x-ray source adapted to project an x-ray beam through the body extremity toward the detector, the x-ray source having a voltage of no more than about 45 kVp and having a target/filter combination of rhodium/rhodium, molybdenum/molybdenum, molybdenum/rhodium, or tungsten/rhodium.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: June 21, 2011
    Assignee: Carestream Health, Inc.
    Inventors: Zhimin Huo, Chang-Ying J. Yang, Mark S. Purdum
  • Bone mineral density assessment using mammography system
    Patent number: 7746976
    Abstract: A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be performed on the image. The system for determining the bone mineral density of a body extremity includes: a support for supporting the body extremity; a detector for capturing an image of the body extremity; and an x-ray source adapted to project an x-ray beam through the body extremity toward the detector, the x-ray source having a voltage of no more than about 45 kVp and having a target/filter combination of rhodium/rhodium, molybdenum/molybdenum, molybdenum/rhodium, or tungsten/rhodium. An attenuation filter separate from the target/filter combination may be provided between the source and the body extremity, between the body extremity and the detector, or both.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: June 29, 2010
    Assignee: Carestream Health, Inc.
    Inventors: Zhimin Huo, Chang-Ying J. Yang, Mark S. Purdum
  • BONE MINERAL DENSITY ASSESSMENT USING MAMMOGRAPHY SYSTEM
    Publication number: 20100142675
    Abstract: A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be performed on the image. The system for determining the bone mineral density of a body extremity includes: a support for supporting the body extremity; a detector for capturing an image of the body extremity; and an x-ray source adapted to project an x-ray beam through the body extremity toward the detector, the x-ray source having a voltage of no more than about 45 kVp and having a target/filter combination of rhodium/rhodium, molybdenum/molybdenum, molybdenum/rhodium, or tungsten/rhodium.
    Type: Application
    Filed: January 29, 2010
    Publication date: June 10, 2010
    Inventors: Zhimin Huo, Chang-Ying J. Yang, Mark S. Purdum
  • X-ray beam calibration for bone mineral density assessment using mammography system
    Patent number: 7387439
    Abstract: An apparatus and method calibration method, particularly to determine an x-ray generation technique to acquire a hand x-ray image using a mammography x-ray system for assessing Radiographic Absorptiometry (RA) based BMD (Bone Mineral Density).
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: June 17, 2008
    Assignee: Carestream Health, Inc.
    Inventors: Chang-Ying J. Yang, Zhimin Huo