Patents by Inventor Yutaka Arayashiki

Yutaka Arayashiki 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: 7548191
    Abstract: In order to enable intermittent output of an oscillation signal without essentially producing a leak in response to a pulse signal indicating a transmission timing of a radar wave, a radar oscillator is provided which employs a configuration in which an operation of an oscillating unit itself is alternately changed between an oscillating state and an oscillation stop state by a switch, rather than a configuration in which an output passage of an oscillation signal is switched to be opened and closed as in a conventional radar oscillator.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: June 16, 2009
    Assignees: Anritsu Corporation, Matsushita Electric Industrial Co., Ltd.
    Inventors: Yutaka Arayashiki, Sumio Saito, Masanori Ejima
  • Publication number: 20090027259
    Abstract: In order to enable intermittent output of an oscillation signal without essentially producing a leak in response to a pulse signal indicating a transmission timing of a radar wave, a radar oscillator is provided which employs a configuration in which an operation of an oscillating unit itself is alternately changed between an oscillating state and an oscillation stop state by a switch, rather than a configuration in which an output passage of an oscillation signal is switched to be opened and closed as in a conventional radar oscillator.
    Type: Application
    Filed: September 4, 2008
    Publication date: January 29, 2009
    Applicants: ANRITSU CORPORATION, MATSUSHITA ELECTRIC INDUSTRIAL CO.
    Inventors: Yutaka Arayashiki, Sumio Saito, Masanori Ejima
  • Patent number: 7474164
    Abstract: A radar oscillator has an oscillation unit and first and second switch circuits. The first switch circuit turns off an electric power supply to an amplifier in a non-input period of a pulse signal to set the oscillation unit in a non-oscillation state and turns on the electric power supply to the amplifier in an input period of the pulse signal to set the oscillation unit in an oscillation state. The second switch circuit turns on an electric power supply to an LC resonator in a period immediately before the pulse signal is input in a period in which the pulse signal is not input to supply a current to the LC resonator and turns off the electric power supply to the LC resonator at a timing at which the pulse signal is input, so that activation of an oscillation operation of the oscillation unit is accelerated.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: January 6, 2009
    Assignees: Anritas Corporation, Matsushita Electric Industrial Co. Ltd.
    Inventors: Sumio Saito, Masanori Ejima, Yutaka Arayashiki
  • Patent number: 7450058
    Abstract: The present invention, in order to enable intermittent output of an oscillation signal without essentially producing a leak in response to a pulse signal indicating a transmission timing of a radar wave, employs a configuration in which an operation of an oscillating unit (21) itself of a radar oscillator is alternately changed between an oscillating state and an oscillation stop state by a switch (30), not a configuration in which an output passage of an oscillation signal is switched to be opened and closed as in a conventional radar oscillator.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: November 11, 2008
    Assignees: Anritsu Corporation, Matsushita Electric Industrial Co., Ltd.
    Inventors: Yutaka Arayashiki, Sumio Saito, Masanori Ejima
  • Publication number: 20070182501
    Abstract: A radar oscillator has an oscillation unit and first and second switch circuits to intermittently output an oscillation signal depending on a pulse signal representing a transmission timing of a transmitting radar signal without causing leakage. The first switch circuit turns off an electric power supply to an amplifier in a non-input period of the pulse signal to set the oscillation unit in a non-oscillation state and turns on the electric power supply to the amplifier in an input period of the pulse signal to set the oscillation unit in an oscillation state.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 9, 2007
    Inventors: Sumio Saito, Masanori Ejima, Yutaka Arayashiki
  • Publication number: 20070080854
    Abstract: The present invention, in order to enable intermittent output of an oscillation signal without essentially producing a leak in response to a pulse signal indicating a transmission timing of a radar wave, employs a configuration in which an operation of an oscillating unit (21) itself of a radar oscillator is alternately changed between an oscillating state and an oscillation stop state by a switch (30), not a configuration in which an output passage of an oscillation signal is switched to be opened and closed as in a conventional radar oscillator.
    Type: Application
    Filed: May 23, 2005
    Publication date: April 12, 2007
    Inventors: Yutaka Arayashiki, Sumio Saito, Masanori Ejima