Patents by Inventor Tatsuhiro Shimura

Tatsuhiro Shimura 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: 11456525
    Abstract: An antenna module 4 includes one antenna base 25 having a radiation surface 25a inclined relative to an opening plane 23 at which a radome 22 is attached, and another antenna base 25 having a radiation surface 25a inclined in a direction different from the one antenna base 25.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: September 27, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Isao Katsura, Tatsuhiro Shimura
  • Patent number: 11296745
    Abstract: A mobile station includes: a baseband processor; and an RF front-end module connected to the baseband processor and including a plurality of antenna modules and a controller. The plurality of antenna modules each include an antenna element and a variable phase shifter connected to the antenna element. The baseband processor is configured to output a beam control signal indicating a direction of an antenna beam formed by the plurality of antenna elements. The controller is configured to receive the beam control signal from the baseband processor, determine a phase control amount for each variable phase shifter on the basis of the beam control signal, and control each variable phase shifter on the basis of the determined phase control amount.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 5, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Tatsuhiro Shimura
  • Publication number: 20220006178
    Abstract: An antenna module to be provided to a vehicle includes: an array antenna configured to form a beam directed from an aperture provided in an exterior body panel of the vehicle, toward a vehicle outside; and a housing holding the array antenna in a vehicle inside.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 6, 2022
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Tatsuhiro SHIMURA, Isao KATSURA, Masahiko ONISHI
  • Publication number: 20210336330
    Abstract: A planar antenna includes: a radiating element; a flexible dielectric film portion; a power feeder line provided for the dielectric film portion, and configured to feed power to the radiating element; a first ground conductor facing against the radiating element; and an antenna base having a dielectric layer disposed between the radiating element and the first ground conductor. The dielectric film portion extends from a side surface of the antenna base. The dielectric layer is thicker than the dielectric film portion.
    Type: Application
    Filed: July 8, 2021
    Publication date: October 28, 2021
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tatsuhiro SHIMURA, Isao KATSURA
  • Patent number: 11095022
    Abstract: A planar antenna includes: a radiating element; a flexible dielectric film portion; a power feeder line provided for the dielectric film portion, and configured to feed power to the radiating element; a first ground conductor facing against the radiating element; and an antenna base having a dielectric layer disposed between the radiating element and the first ground conductor. The dielectric film portion extends from a side surface of the antenna base. The dielectric layer is thicker than the dielectric film portion.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: August 17, 2021
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tatsuhiro Shimura, Isao Katsura
  • Publication number: 20210057806
    Abstract: An antenna module 4 includes one antenna base 25 having a radiation surface 25a inclined relative to an opening plane 23 at which a radome 22 is attached, and another antenna base 25 having a radiation surface 25a inclined in a direction different from the one antenna base 25.
    Type: Application
    Filed: October 18, 2018
    Publication date: February 25, 2021
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Isao KATSURA, Tatsuhiro SHIMURA
  • Publication number: 20200028251
    Abstract: A planar antenna includes: a radiating element; a flexible dielectric film portion; a power feeder line provided for the dielectric film portion, and configured to feed power to the radiating element; a first ground conductor facing against the radiating element; and an antenna base having a dielectric layer disposed between the radiating element and the first ground conductor. The dielectric film portion extends from a side surface of the antenna base. The dielectric layer is thicker than the dielectric film portion.
    Type: Application
    Filed: February 21, 2018
    Publication date: January 23, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tatsuhiro SHIMURA, Isao KATSURA
  • Publication number: 20190319663
    Abstract: A mobile station includes: a baseband processor; and an RF front-end module connected to the baseband processor and including a plurality of antenna modules and a controller. The plurality of antenna modules each include an antenna element and a variable phase shifter connected to the antenna element. The baseband processor is configured to output a beam control signal indicating a direction of an antenna beam formed by the plurality of antenna elements. The controller is configured to receive the beam control signal from the baseband processor, determine a phase control amount for each variable phase shifter on the basis of the beam control signal, and control each variable phase shifter on the basis of the determined phase control amount.
    Type: Application
    Filed: October 20, 2017
    Publication date: October 17, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Tatsuhiro SHIMURA
  • Patent number: 9083290
    Abstract: There is provided an amplifier apparatus and a signal processing apparatus that reduce a delay or distortion of a power supply voltage used for drain modulation. An amplifier apparatus is an amplifier apparatus that performs drain modulation, and includes a printed circuit board having a first surface and a second surface; an amplifier circuit disposed on the first surface; and a modulation power supply circuit that supplies a variable power supply voltage for performing drain modulation, to the amplifier circuit The modulation power supply circuit has an output portion that outputs the power supply voltage. The amplifier circuit has an input portion to which the power supply voltage is supplied. The output portion is located on the side of the second principal surface of the printed circuit board and is connected to the input portion through a conductor penetrating through the printed circuit board.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: July 14, 2015
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yorinao Kurokawa, Tatsuhiro Shimura
  • Patent number: 8587271
    Abstract: An envelope tracking power supply circuit is a power supply circuit for generating an output voltage according to the envelope of a high frequency signal and includes a voltage follower circuit for receiving an envelope signal and outputting a voltage according to the envelope signal; two parallel resistors connected in parallel between the output of the voltage follower circuit and an output terminal; hysteresis comparators for detecting respective voltage drops in the parallel resistors and generating voltages according to the voltage drops; and switching converters for performing switching according to the respective voltages outputted from the hysteresis comparators and outputting a voltage to the output terminal.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: November 19, 2013
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Akihiro Kanbe, Masato Kaneta, Haruo Kobayashi, Hitoshi Hirata, Tatsuhiro Shimura
  • Publication number: 20120294201
    Abstract: There is provided an amplifier apparatus and a signal processing apparatus that reduce a delay or distortion of a power supply voltage used for drain modulation. An amplifier apparatus is an amplifier apparatus that performs drain modulation, and includes a printed circuit board having a first surface and a second surface; an amplifier circuit disposed on the first surface; and a modulation power supply circuit that supplies a variable power supply voltage for performing drain modulation, to the amplifier circuit. The modulation power supply circuit has an output portion that outputs the power supply voltage. The amplifier circuit has an input portion to which the power supply voltage is supplied. The output portion is located on the side of the second principal surface of the printed circuit board and is connected to the input portion through a conductor penetrating through the printed circuit board.
    Type: Application
    Filed: February 22, 2011
    Publication date: November 22, 2012
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Yorinao Kurokawa, Tatsuhiro Shimura
  • Publication number: 20110031953
    Abstract: The invention aims to maintain a high efficiency even for a high-frequency signal having a wideband envelope. The envelope tracking power supply circuit 5 is a power supply circuit for generating an output voltage according to the envelope of a high frequency signal and comprises a voltage follower circuit 7 for receiving an envelope signal and outputting a voltage according to the envelope signal SE; two parallel resistors Rsense connected in parallel between the output of the voltage follower circuit 7 and an output terminal PO; hysteresis comparators 9a, 9b for detecting respective voltage drops in the parallel resistors Rsense and generating voltages according to the voltage drops; and switching converters 11a, 11b for performing switching according to the respective voltages outputted from the hysteresis comparators 9a, 9b and outputting a voltage to the output terminal PO.
    Type: Application
    Filed: February 3, 2009
    Publication date: February 10, 2011
    Inventors: Akihiro Kanbe, Masato Kaneta, Haruo Kobayashi, Hitoshi Hirata, Tatsuhiro Shimura