Patents Assigned to Nikon Corporation of America
  • High power, high performance pulse width modulation amplifier
    Patent number: 6064259
    Abstract: A high performance pulse width modulation amplifier system employing an H-bridge amplifier connected to a carrier wave output filter produces a pulsed wave signal with high power transfer efficiency and low total harmonic distortion characteristics. A carrier wave output filter used with the pulse width modulation amplifier system produces little peak resonance at low frequencies.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: May 16, 2000
    Assignee: Nikon Corporation of America
    Inventor: Mark K. Takita