Patents by Inventor Raymond Leonard Hughes

Raymond Leonard Hughes 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).

  • Gradient drive system for magnetic resonance imaging
    Patent number: 6154031
    Abstract: A gradient drive system for delivering current pulses to an MRI gradient coil, having an input for receiving an relatively high voltage supply for the gradient coil, a relatively low voltage battery supply for the gradient coil and a controller coupled to the input for controlling the high voltage supply dependent on the current supply to the gradient coil.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: November 28, 2000
    Assignee: BTG International Limited
    Inventor: Raymond Leonard Hughes