Patents by Inventor Frederick M.C. Cheng

Frederick M.C. Cheng 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).

  • High temperature superconductor tape RF coil for magnetic resonance imaging
    Patent number: 6943550
    Abstract: A HTS RF coil is disclosed having at least a factor of three improvement in the SNR over a comparable copper coil and at least a factor of six improvement in Q over a comparable copper coil. A commercially available HTS tape is formed into a loop. High-Q capacitors are soldered across the loop ends. The silver sheath covering the tape is removed through chemical etching. The coil is placed in a holder for mechanical support and protection and covered with a cover having through holes enabling the coolant to directly contact the HTS coil.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: September 13, 2005
    Assignee: The University of Hong Kong
    Inventors: Frederick M.C. Cheng, Francis K.H. Lee, Edward S. Yang
  • High temperature superconductor tape RF coil for magnetic resonance imaging
    Publication number: 20040222186
    Abstract: A HTS RF coil is disclosed having at least a factor of three improvement in the SNR over a comparable copper coil and at least a factor of six improvement in Q over a comparable copper coil. A commercially available HTS tape is formed into a loop. High-Q capacitors are soldered across the loop ends. The silver sheath covering the tape is removed through chemical etching. The coil is placed in a holder for mechanical support and protection and covered with a cover having through holes enabling the coolant to directly contact the HTS coil.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 11, 2004
    Inventors: Frederick M.C. Cheng, Francis K.H. Lee, Edward S. Yang