Patents by Inventor Hakki Yengingil

Hakki Yengingil 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).

  • All-electric piezoelectric finger sensor (PEFS) for soft material stiffness measurement
    Patent number: 7779707
    Abstract: A PEFS (Piezoelectric Finger Sensor) acts as an “electronic finger” capable of accurately and non-destructively measuring both the Young's compression modulus and shear modulus of tissues with gentle touches to the surface. The PEFS measures both the Young's compression modulus and shear modulus variations in tissue generating a less than one-millimeter spatial resolution up to a depth of several centimeters. This offers great potential for in-vivo early detection of diseases. A portable hand-held device is also disclosed. The PEF offers superior sensitivity.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: August 24, 2010
    Assignee: Drexel University
    Inventors: Wan Y. Shih, Wei-Heng Shih, Anna Markidou, Steven T. Sweczyk, Hakki Yengingil
  • ALL-ELECTRIC PIEZOELECTRIC FINGER SENSOR (PEFS) FOR SOFT MATERIAL STIFFNESS MEASUREMENT
    Publication number: 20090145246
    Abstract: A PEFS (Piezoelectric Finger Sensor) acts as an “electronic finger” capable of accurately and non-destructively measuring both the Young's compression modulus and shear modulus of tissues with gentle touches to the surface. The PEFS measures both the Young's compression modulus and shear modulus variations in tissue generating a less than one-millimeter spatial resolution up to a depth of several centimeters. This offers great potential for in-vivo early detection of diseases. A portable hand-held device is also disclosed. The PEF offers superior sensitivity.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 11, 2009
    Applicant: DREXEL UNIVERSITY
    Inventors: WAN Y. SHIH, WEI-HENG SHIH, ANNA MARKIDOU, STEVEN T. SZWECZYK, HAKKI YENGINGIL