Patents by Inventor Alfred Hendrik Van Ommen

Alfred Hendrik Van Ommen 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).

  • Noise suppression in an open MR apparatus
    Patent number: 7026815
    Abstract: The invention relates to an MR apparatus (1) having an examination volume (6) of the open type such that the examination volume (6) is also accessible laterally, having main coil devices (2) for producing a main magnetic field that are disposed on two opposite sides of the examination volume (6), having at least one high-frequency coil device (5) for exciting the proton precession and having at least one two-part gradient coil device (4), disposed on opposite sides of the examination volume (6), for the positional coding of the excitation of the proton precession. The dynamic Lorentz forces have hitherto resulted in a high oscillation level. It is an object of the invention to provide an MR apparatus (1) that has only a low oscillation level.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: April 11, 2006
    Assignee: Koninklijke Philps Electronics N.V.
    Inventors: Paul Royston Harvey, Johannes Adrianus Overweg, Alfred Hendrik Van Ommen