Patents by Inventor Shin?apos;ichi Kugou

Shin?apos;ichi Kugou 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).

  • Power splitter/combiner circuit, high power amplifier and balun circuit
    Publication number: 20040061568
    Abstract: A high power amplifier has a first balun propagating a half of an input signal to an in-phase output terminal, and also propagating a fourth of the input signal to first and second opposite-phase output terminals, the signal propagated to the first and second opposite-phase output terminals lagging 180 degrees behind the signal propagated to the in-phase output terminal; first and second power amplifier circuits connected to the first and second opposite-phase output terminals of the first balun and having the same characteristics;a third power amplifier circuit connected to the in-phase output terminal of the first balun and having output power substantially twice as much as the output power of the first or second power amplifier circuit; and a second balun having first and second opposite-phase input terminals for receiving the outputs of the first and second power amplifier circuits, having an in-phase input terminal for receiving the output of the third power amplifier circuit, combining the outputs of th
    Type: Application
    Filed: August 22, 2003
    Publication date: April 1, 2004
    Inventors: Kaoru Ishida, Masayuki Miyaji, Hiroaki Kosugi, Shin?apos;ichi Kugou
  • Power splitter/combiner circuit, high power amplifier and balun circuit
    Publication number: 20030197574
    Abstract: A balun design incorporating the functions of a splitter (combiner) which can be employed in a high power amplifier circuit configuration. The balun is formed of a dielectric multilayer board with conductor patterns on each conductor pattern layer. The balun includes the propagation of a half of an input signal to an in-phase output terminal, and also propagating a fourth of the input signal to first and second opposite-phase output terminals, the signal propagated to the first and second opposite-phase output terminals lagging 180 degrees behind the signal propagated to the in-phase output terminal. The balun provides the output signals at the first and second opposite-phase output terminals 180° out of phase employing through holes in the main line and coupling lines for promoting electromagnetic coupling therebetween.
    Type: Application
    Filed: May 15, 2003
    Publication date: October 23, 2003
    Inventors: Kaoru Ishida, Masayuki Miyaji, Hiroaki Kosugi, Shin?apos;ichi Kugou
  • Power splitter/combiner circuit, high power amplifier and balun circuit
    Publication number: 20020097088
    Abstract: A high power amplifier has a first balun propagating a half of an input signal to an in-phase output terminal, and also propagating a fourth of the input signal to first and second opposite-phase output terminals, the signal propagated to the first and second opposite-phase output terminals lagging 180 degrees behind the signal propagated to the in-phase output terminal; first and second power amplifier circuits connected to the first and second opposite-phase output terminals of the first balun and having the same characteristics;a third power amplifier circuit connected to the in-phase output terminal of the first balun and having output power substantially twice as much as the output power of the first or second power amplifier circuit; and a second balun having first and second opposite-phase input terminals for receiving the outputs of the first and second power amplifier circuits, having an in-phase input terminal for receiving the output of the third power amplifier circuit, combining the outputs of th
    Type: Application
    Filed: March 22, 2002
    Publication date: July 25, 2002
    Inventors: Kaoru Ishida, Masayuki Miyaji, Hiroaki Kosugi, Shin?apos;Ichi Kugou
  • Multicarrier transmitting method and multicarrier transmitter circuit
    Publication number: 20010005401
    Abstract: A multicarrier transmitting method has the steps of:
    Type: Application
    Filed: December 11, 2000
    Publication date: June 28, 2001
    Inventors: Kaoru Ishida, Shin?apos;ichi Kugou
  • Power splitter/combiner circuit, high power amplifier and balun circuit
    Publication number: 20010001548
    Abstract: A high power amplifier has a first balun propagating a half of an input signal to an in-phase output terminal, and also propagating a fourth of the input signal to first and second opposite-phase output terminals, the signal propagated to the first and second opposite-phase output terminals lagging 180 degrees behind the signal propagated to the in-phase output terminal; first and second power amplifier circuits connected to the first and second opposite-phase output terminals of the first balun and having the same characteristics; a third power amplifier circuit connected to the in-phase output terminal of the first balun and having output power substantially twice as much as the output power of the first or second power amplifier circuit; and a second balun having first and second opposite-phase input terminals for receiving the outputs of the first and second power amplifier circuits, having an in-phase input terminal for receiving the output of the third power amplifier circuit, combining the outputs of t
    Type: Application
    Filed: January 12, 2001
    Publication date: May 24, 2001
    Inventors: Kaoru Ishida, Masayuki Miyaji, Hiroaki Kosugi, Shin?apos;ichi Kugou