Patents by Inventor Xiaotun Qiu

Xiaotun Qiu 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).

  • Film bulk acoustic wave resonator-based ethanol and acetone sensors and methods using the same
    Patent number: 8733149
    Abstract: The present invention relates generally to the detection of alcohol. The present invention relates more particularly to the film bulk acoustic wave resonator-based devices, and their use in the sensing of ethanol and/or acetone. One aspect of the invention is a method for detecting ethanol, acetone or both in a gaseous sample including: providing a film bulk acoustic wave resonator having a zinc oxide piezoelectric layer; exposing the film bulk acoustic wave resonator to the gaseous sample; determining the resonant frequency of the film bulk acoustic wave resonator; and determining the concentration of ethanol, the concentration of acetone, or both in the gaseous sample using the resonant frequency of the film bulk acoustic wave resonator.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: May 27, 2014
    Assignee: Arizona Board of Regents, a body corporate of the State of Arizona, Acting for and on Behalf of Arizona State University
    Inventors: Hongyu Yu, Xiaotun Qiu
  • Film Bulk Acoustic Wave Resonator-Based Ethanol and Acetone Sensors and Methods Using the Same
    Publication number: 20120297859
    Abstract: The present invention relates generally to the detection of alcohol. The present invention relates more particularly to the film bulk acoustic wave resonator-based devices, and their use in the sensing of ethanol and/or acetone. One aspect of the invention is a method for detecting ethanol, acetone or both in a gaseous sample including: providing a film bulk acoustic wave resonator having a zinc oxide piezoelectric layer; exposing the film bulk acoustic wave resonator to the gaseous sample; determining the resonant frequency of the film bulk acoustic wave resonator; and determining the concentration of ethanol, the concentration of acetone, or both in the gaseous sample using the resonant frequency of the film bulk acoustic wave resonator.
    Type: Application
    Filed: January 20, 2011
    Publication date: November 29, 2012
    Applicant: Arizona Board of Regents, a body Corporate of the States of Arizona acting for and on behalf of Ariz
    Inventors: Hongyu Yu, Xiaotun Qiu