Patents by Inventor Johji Kane

Johji Kane 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).

  • Patent number: 4619001
    Abstract: A tuning system employs a specific resonant circuit which includes two electrodes confronting each other through a dielectric interposed therebetween. Each of the two electrodes has at least one bent portion to present a lumped-constant inductance and has a desired equivalent electrical length. The two electrodes respectively have common terminals located out of mutually confronting positions so that voltage signals induced by mutual inductance between the electrodes will be opposite in phase so as to thereby produce a parasitic distributed-constant capacitance. The two electrodes form a two-terminal circuit network having a first terminal disposed at a desired position on one of the two electrodes and the common terminals as a second terminal. The first terminal of the resonant circuit is connected to a feedback amplifier, an amplifier, or a mixer so as to form a tuning oscillator, a tuning amplifier or a mixer.
    Type: Grant
    Filed: August 1, 1984
    Date of Patent: October 21, 1986
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Johji Kane
  • Patent number: 4614925
    Abstract: A resonator filter has electrodes disposed in a confronting relationship to each other and has a dielectric base plate interposed therebetween. The filter has ground or common terminals on the electrode portions in different positions which do not include mutually confronting electrode portions. The electrodes have spiral configurations or configurations having at least one bent portion such that the electrodes have a lumped-constant inductance. Voltage signals induced in the electrodes due to mutual induction therebetween are opposite in phase with respect to each other and a parasitic distributed-constant capacitance is produced due to a potential difference between the electrodes and a dielectric constant of the dielectric base plate. As a consequence thereof, a two-terminal parallel resonance band pass filter circuit is formed on an equivalent basis which is composed of the lumped-constant inductance of one of the electrodes and the distributed-constant capacitance between the electrodes.
    Type: Grant
    Filed: July 3, 1984
    Date of Patent: September 30, 1986
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Johji Kane
  • Patent number: 4334230
    Abstract: A variable tuning unit, including voltage variable-reactance circuits and a reactance element for adjusting the impedance, is electrically connected to the feed side of an antenna element which is formed of transmission lines in a zigzag configuration and having a distributed inductance, thereby constituting an antenna circuit. A plurality of reference dipole antennas forming such antenna circuits are provided to form an antenna configuration of the phased array type or Yagi type. Voltage variable-capacitors are interconnected within the voltage variable-reactance circuits and the feed terminal of the antenna configuration is connected to the input terminal of a remote radio receiver through a coaxial cable, so that RF signals received by the antenna are supplied to the receiver. A D.C. tuning control voltage, generated by the radio receiver, is fed to a voltage variable-capacitor within the voltage variable-reactance circuit by way of the coaxial cable.A slightly different D.C.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: June 8, 1982
    Assignee: Matsushita Electric Industrial Co. Ltd.
    Inventor: Johji Kane