Patents by Inventor Thomas R. Poulin

Thomas R. Poulin 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).

  • Ultrasonic transducer array
    Patent number: 5311095
    Abstract: Disclosed is a ultrasonic transducer array comprising a ceramic connector having an array of connector pads, a mismatching layer of electrically conducting material connected to the upper surface of the ceramic connector, a piezoelectric transducer chip connected to the mismatching layer, separation means for dividing the piezoelectric chip into a plurality of transducer elements positioned in a two-dimensional array, wherein each one of the plurality of transducer elements is selectively connected to a corresponding one of the connector pads. Also disclosed in a two-dimensional ultrasound transducer array and transducer array for ultrasound imaging.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: May 10, 1994
    Assignee: Duke University
    Inventors: Stephen W. Smith, Olaf T. von Ramm, Paul J. Roeder, Thomas R. Poulin
  • Chip carrier package and method of manufacture
    Patent number: 4965702
    Abstract: An improved integrated chip carrier package contains closely spaced electrical leads which facilitates contact with leads from the chip.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: October 23, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John W. Lott, Thomas R. Poulin, Patrick W. Wallace