Patents Assigned to USC Co., Limited
  • Piezoelectric generating apparatus
    Patent number: 6411016
    Abstract: A structure comprises a piezoelectric ceramics plate formed by two plate-shaped piezoelectric ceramics elements which are layered and joined to each other with inverse polarization, in which electricity is generated by beating one or both surface of the piezoelectric ceramics plate. Therefore, an excellent generating efficiency is obtained.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: June 25, 2002
    Assignee: USC Co., Limited
    Inventors: Mikio Umeda, Yasuhiro Sakai