Patents by Inventor Tetsuya Hatta

Tetsuya Hatta 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).

  • Inspecting method of elastic body, inspecting apparatus thereof, and dimension predicting program thereof
    Publication number: 20050284224
    Abstract: In an inspecting method of a piezoelectric/electrostrictive actuator having a piezoelectric/electrostrictive element and two or more electrodes, the frequency response characteristics is picked up when a vibration is given to the piezoelectric/electrostrictive actuator, and the amount of displacement of the piezoelectric/electrostrictive actuator is predicted by the frequency response characteristics. The piezoelectric/electrostrictive actuator is precisely inspected without dissolution and destruction and without actual driving as a product.
    Type: Application
    Filed: April 27, 2005
    Publication date: December 29, 2005
    Applicant: NGK Insulators, Ltd.
    Inventors: Tomohiro Yamada, Masato Komazawa, Tetsuya Hatta, Takatoshi Nehagi