Patents by Inventor Chi H. Hsieh

Chi H. Hsieh 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).

  • Vibration control in NMR magnet structures
    Patent number: 5016638
    Abstract: A medical NMR scanner adapted to be supported on the floor of a building or other structure by vibration limiting supports is disclosed. The scanner includes a frame defining a patient-receiving space adapted to receive a human body. It also includes a pair of opposed polar regions aligned on a polar axis. The polar regions are disposed on opposite sides of the patient-receiving space. Structure is provided in each of the polar regions for producing a magnetic field within the patient-receiving space. Attenuators, positioned intermediate the frame and the building floor, are provided for attenuating transmission of vibrations from the floor to the magnetic field producing structure in order to reduce scanner image degradation.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: May 21, 1991
    Inventor: Chi H. Hsieh
  • Eyeglass case
    Patent number: D352825
    Type: Grant
    Filed: November 26, 1993
    Date of Patent: November 29, 1994
    Inventor: Chi H. Hsieh