Patents by Inventor Ram Hatangadi

Ram Hatangadi 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).

  • Patent number: 6759791
    Abstract: According to various aspects of the invention, a transducer is manufactured by providing a substrate assembly, making major element cuts in the substrate assembly in a first direction, making minor element cuts in the substrate assembly in a second direction, positioning a plurality of signal lines (such as a flex circuit) on the substrate assembly such that the plurality of signal lines is aligned with said minor element cuts, and making major element cuts in the substrate assembly in the second direction after said plurality of signal lines is positioned.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: July 6, 2004
    Inventors: Ram Hatangadi, Sanjay Chandran, Dave Chartrand
  • Patent number: 6726631
    Abstract: A method and apparatus for apodization is exemplified in an ultrasound transducer used, for example, in medical applications. The method and apparatus of the present invention provides an ultrasonic transducer with frequency and amplitude apodization, thus improving signal quality and producing improved ultrasonic images. The manufacture of this apparatus is improved by the making of composite cuts into piezoelectric material according to a predetermined pattern which generally varies the concentration of piezoelectric material across the surface of the transducer. Concentration of piezoelectric material can be varied across the surface of the piezoelectric transducer by varying the spacing between the cuts in the piezoelectric material, or by varying the width of the cuts in the piezoelectric material, or a combination of both.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: April 27, 2004
    Assignee: GE Parallel Designs, Inc.
    Inventors: Ram Hatangadi, Patrick Pesque, Sanjay Chandran
  • Publication number: 20030009873
    Abstract: According to various aspects of the invention, a transducer is manufactured by providing a substrate assembly, making major element cuts in the substrate assembly in a first direction, making minor element cuts in the substrate assembly in a second direction, positioning a plurality of signal lines (such as a flex circuit) on the substrate assembly such that the plurality of signal lines is aligned with said minor element cuts, and making major element cuts in the substrate assembly in the second direction after said plurality of signal lines is positioned.
    Type: Application
    Filed: December 21, 2000
    Publication date: January 16, 2003
    Inventors: Ram Hatangadi, Sanjay Chandran, Dave Chartrand
  • Publication number: 20020042577
    Abstract: A method and apparatus for apodization is exemplified in an ultrasound transducer used, for example, in medical applications. The method and apparatus of the present invention provides an ultrasonic transducer with frequency and amplitude apodization, thus improving signal quality and producing improved ultrasonic images. The manufacture of this apparatus is improved by the making of composite cuts into piezoelectric material according to a predetermined pattern which generally varies the concentration of piezoelectric material across the surface of the transducer. Concentration of piezoelectric material can be varied across the surface of the piezoelectric transducer by varying the spacing between the cuts in the piezoelectric material, or by varying the width of the cuts in the piezoelectric material, or a combination of both.
    Type: Application
    Filed: September 17, 2001
    Publication date: April 11, 2002
    Inventors: Ram Hatangadi, Patrick Pesque, Sanjay Chandran