Patents by Inventor Egon Krafczyk

Egon Krafczyk 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).

  • Array of membrane ultrasound transducers
    Patent number: 6548937
    Abstract: The invention relates to an array of ultrasound transducers which each comprise a membrane that is comprised of diamond or diamond-like carbon, a barrier structure, a piezoelectric layer, a first electrode and a second electrode. The barrier structure ensures strong adhesion of the piezoelectric layer to the barrier structure and thus to the device and that the piezoelectric layer only comprises a single phase. In addition, the barrier structure protects the membrane against oxidation/decomposition during the manufacturing process of piezoelectric layer. The invention further relates to an ultrasound transducer.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: April 15, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mareike Katharine Klee, Hans-Wolfgang Brand, Egon Krafczyk, Hans-Peter Loebl, Peter Klaus Bachmann