Patents by Inventor Andreas H. W. Wichern

Andreas H. W. Wichern 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).

  • MR examination apparatus comprising a circuit for decoupling the two coil systems of a quadrature coil arrangement
    Patent number: 4998066
    Abstract: An MR examination apparatus has a quadrature coil arrangement which consists of two coil systems and a circuit for decoupling the two coil systems. In such an MR examination apparatus the decoupling between the coil systems is improved in that the circuit comprises a variable capacitor which connects one coil system to the other.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: March 5, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Andreas H. W. Wichern, Christoph G. Leussler