Patents Assigned to Asulab S.A. - ESA 55
  • Piezoelectric micro-resonateur
    Patent number: 4608510
    Abstract: The micro-resonator comprises, cut from the same quartz crystal, a bar and a suspension frame means. The bar is cut in a substantially Z cut mode. The excitation electrodes are disposed on the sides of the bar. The length of the bar is substantially parallel to the Y axis.This produces a resonator which vibrates in a main mode of extension-compression, at from 0.5 MHz to 4 MHz.
    Type: Grant
    Filed: January 13, 1982
    Date of Patent: August 26, 1986
    Assignee: Asulab S.A. - ESA 55
    Inventors: Rudolf J. Dinger, Jean-Georges Michel