Patents by Inventor Huidong Li

Huidong Li 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).

  • Self-powering headset, devices and related methods
    Patent number: 8143765
    Abstract: In one aspect, the invention relates to a headset that includes an element that generates energy in response to forces. The headset includes at least one vibratable piezoelectric element; a first circuit element in electrical communication with the at least one vibratable piezoelectric element; and a signal processing element, the signal processing element disposed within the headset and at least partially energized by mechanical changes in the vibratable piezoelectric element.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: March 27, 2012
    Assignee: TBT Group, Inc.
    Inventors: Hakki Yegingil, John-Paul McGovern, Sabine Ohler, Daniel DeClement, Christian L. Martorano, Huidong Li, Joseph Capobianco, Matthew H. Foster, Richard Martorano
  • LEAD-FREE PIEZOELECTRIC CERAMIC FILMS AND A METHOD FOR MAKING THEREOF
    Publication number: 20100239463
    Abstract: This invention relates to lead-free piezoelectric ceramic films and a method of making thereof. Specifically, the invention is directed to a method for fabricating lead-free piezoelectric free standing films having enhanced piezoelectric properties. The films may be used for a number of applications including incorporation in microelectronic devices such as energy harvesting devices and sensor technologies.
    Type: Application
    Filed: November 20, 2008
    Publication date: September 23, 2010
    Applicant: DREXEL UNIVERSITY
    Inventors: Wei-Heng Shih, Wan Y. Shih, Huidong Li
  • SOL-GEL PRECURSORS AND METHODS FOR MAKING LEAD-BASED PEROVSKITE FILMS
    Publication number: 20100051447
    Abstract: A simple, economical sol-gel method was invented to produce thick and dense lead zirconate titanate (PZT) thin films that exhibit the stoichiometric chemical composition and unprecedented electrical and dielectric properties. The PZT films are the foundation of many microelectromechanical systems (MEMS) and nanoelectromechanical systems (NEMS) for micro/nano sensors and actuators applications.
    Type: Application
    Filed: November 6, 2007
    Publication date: March 4, 2010
    Applicant: DREXEL UNIVERSITY
    Inventors: Wei-Heng Shih, Wan Y. Shih, Zuyan Shen, Huidong Li, Xiaotong Gao