Patents Examined by Mark J. Budd
  • Patent number: 6278226
    Abstract: A piezo ceramic transformer working at a full wave length mode, &lgr;-mode, in accordance with the present invention has a driving region divided into two sections in the center and two generating regions at the end regions of a thin rectangular bar. Two input sections are built into multi-layered structure with multiple internal-electrodes and poled along the thickness direction with polarization in the neighboring layers opposite to each other. Alternating internal electrodes are connected in parallel through two external electrodes in each input section. Polarization in the same layer of two input sections are disposed in the same direction, and two external electrodes of two input sections in the same side of driving region are connected 180 degree out of phase to each other to a driving circuit. Two CCFLs are connected directly to two output electrodes at the end of the piezo ceramic transformer, respectively.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: August 21, 2001
    Assignee: Dong Il Technology Ltd.
    Inventors: Henry Danov, Young Min Kim, Moon Ho Choi, Byung Hoon Lee, Soon Kil Hong
  • Patent number: 5568005
    Abstract: The Acoustic Magnetic Field Power Generator uses an acoustic signal focused into a permanent magnet to stimulate the nuclear structure of the magnet to cause the magnetic field of the permanent magnet to move or oscillate. This effect can be used to tap power from the oscillating magnetic field by putting a coil of wire in the oscillating field. When an alternating current signal generator is connected simultaneously to an acoustic transducer and a stimulating coil; whereby, both the acoustic transducer and the stimulating coil are located within the magnetic field of the magnet, the acoustic signal enhances the stimulating effect to the permanent magnet transformer. The acoustic transducer can be any acoustic generation device such as a piezoelectric, magnetostictive, or other acoustic transducer. The combined effect of the acoustic signal and the stimulating coil increases the efficiency of permanent magnet induction transformers.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: October 22, 1996
    Inventor: Dan A. Davidson
  • Patent number: 5332941
    Abstract: The present invention is directed to an ultrasonic driving member comprising a rotor having slide projections in contact with an edge face of a piezoelectric vibrator.
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: July 26, 1994
    Assignee: Honda Electronics Co., Ltd.
    Inventor: Keisuke Honda