Patents by Inventor Chao-Chun Wen

Chao-Chun Wen 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).

  • Measuring system for determining the electromechanical coupling characteristics of a PZT vibrator
    Patent number: 7291828
    Abstract: A measuring system for determining the electromechanical coupling characteristics of a piezoceramic (PZT) vibrator, which apply photo-interrupters matrix, glass tube, and metal ball to measure the bouncing motion, wherein the system includes an elastic-bouncing tester, a height measuring circuit, an instantaneous height indicator, a microprocessor, a monitor, and a driving circuit. There is a metal ball in the elastic-bouncing tester. By measuring the bouncing height and flying time, it can determine the electromechanical coupling characteristics of a PZT vibrator or the hardness of other rigid objects.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: November 6, 2007
    Inventors: Chao-Chun Wen, Fuh-Liang Wen
  • Measuring system for determining the electromechanical coupling characteristics of a PZT vibrator
    Publication number: 20070144271
    Abstract: A measuring system for determining the electromechanical coupling characteristics of a piezoceramic (PZT) vibrator, which apply photo-interrupters matrix, glass tube, and metal ball to measure the bouncing motion, wherein the system includes an elastic-bouncing tester, a height measuring circuit, an instantaneous height indicator, a microprocessor, a monitor, and a driving circuit. There is a metal ball in the elastic-bouncing tester. By measuring the bouncing height and flying time, it can determine the electromechanical coupling characteristics of a PZT vibrator or the hardness of other rigid objects.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 28, 2007
    Inventors: Chao-Chun Wen, Fuh-Liang Wen