Patents by Inventor Motomi WATANABE

Motomi WATANABE 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).

  • Publication number: 20200381376
    Abstract: An electronic circuit to which the present invention is applied has a configuration in which a first substrate and a second substrate are stacked and connected to each other. The electronic circuit includes: a transmission path configured to connect a first wiring line for a signal formed in the first substrate and a second wiring for a signal formed in the second substrate to each other; and a short-circuit stub configured to connect a ground conductor provided in the first substrate and the transmission path to each other through use of three or more types of conductors.
    Type: Application
    Filed: August 19, 2020
    Publication date: December 3, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Motomi WATANABE
  • Publication number: 20200381794
    Abstract: A square waveguide (1) has four ridges (6a, 6b, 7a, 7b). The cross section of the square waveguide (1) perpendicular to a waveguide axial direction is square. Inside the square waveguide (1), two rectangular waveguide terminals (4, 5) are formed by partitioning the inside along the waveguide axial direction. A septum phase plate (2) formed to get narrower stepwisely as its gets closer to a square waveguide terminal (3) opposite to the rectangular waveguide terminals (4, 5) is provided. A projecting portion (8) is provided on a part of a ridge (7b) formed on a ridge-side wall surface opposite to a wall surface, the septum phase plate (2) being joined to the wall surface in a part where the septum phase plate has largest width, the projecting portion (8) being larger than other parts of the ridge (7b) in a cross-sectional shape perpendicular to the waveguide axial direction.
    Type: Application
    Filed: May 26, 2017
    Publication date: December 3, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hidenori YUKAWA, Yu USHIJIMA, Motomi WATANABE, Jun GOTO, Naofumi YONEDA, Shinji ARAI
  • Publication number: 20200274218
    Abstract: A waveguide unit (2) is closed at one end thereof by a short circuit plane (2a) provided with through holes (3-1 to 3-6). Radio wave absorbers (4-1 to 4-6) absorb a frequency signal being a non-reflective target in the state of being inserted through the through holes (3-1 to 3-6) toward the inside of the waveguide unit (2) and contacting inner surfaces (3?-1 to 3?-6) of the through holes (3-1 to 3-6).
    Type: Application
    Filed: May 22, 2017
    Publication date: August 27, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yu USHIJIMA, Hidenori YUKAWA, Takeshi OSHIMA, Motomi WATANABE, Naofumi YONEDA
  • Publication number: 20200259234
    Abstract: A coaxial line is provided which includes: a first columnar conductor disposed inside a multilayer substrate such that one end thereof is coupled to a first stripline and that the other end thereof is coupled to a second stripline; and one or more second columnar conductors penetrating the multilayer substrate such that one end thereof is coupled to a ground layer and that the other end thereof is coupled to a ground layer, the first columnar conductor acting as an inner conductor, and the second columnar conductors acting as outer conductors. Each of the first and second striplines is coupled to an open stub acting as resonators and a matching conductor acting as capacitance matching elements.
    Type: Application
    Filed: September 14, 2018
    Publication date: August 13, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Motomi WATANABE, Takeshi YUASA, Takuma NISHIMURA
  • Patent number: 10680307
    Abstract: A substrate is used as one tube wall of a hollow waveguide, the substrate including a strip line wired in an inner layer, a first ground surface formed on a front surface, and a second ground surface formed on a part of a back surface. As a result of such a configuration, a waveguide strip line transducer having the same dimension as the external dimension of the hollow waveguide can be obtained.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: June 9, 2020
    Assignee: Mitsubishi Electric Coporation
    Inventors: Motomi Watanabe, Shinji Arai, Tomohiro Takahashi, Takeshi Oshima, Takeshi Yuasa, Takuma Nishimura, Hidenori Yukawa
  • Patent number: 10581136
    Abstract: An input waveguide (6) having one end connected between an L-shaped waveguide (1a) and an L-shaped waveguide (1f) and another end connected to the PORT (1); an output waveguide (7) having one end connected between the L-shaped waveguide (1a) and a flat waveguide (1b) and another end connected to the PORT (2); an output waveguide (8) having one end connected between the flat waveguide (1b) and an L-shaped waveguide (1c) and another end connected to the PORT (3); an output waveguide (9) having one end connected between the L-shaped waveguide (1c) and an L-shaped waveguide (1d) and another end connected to the PORT (4); and a plurality of branching waveguides (10) each having one end connected to the output waveguide (7) and another end connected to the output waveguide (8) are provided.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: March 3, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yu Ushijima, Hidenori Yukawa, Motomi Watanabe, Naofumi Yoneda
  • Publication number: 20190157735
    Abstract: A substrate is used as one tube wall of a hollow waveguide, the substrate including a strip line wired in an inner layer, a first ground surface formed on a front surface, and a second ground surface formed on a part of a back surface. As a result of such a configuration, a waveguide strip line transducer having the same dimension as the external dimension of the hollow waveguide can be obtained.
    Type: Application
    Filed: June 5, 2017
    Publication date: May 23, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Motomi WATANABE, Shinji ARAI, Tomohiro TAKAHASHI, Takeshi OSHIMA, Takeshi YUASA, Takuma NISHIMURA, Hidenori YUKAWA
  • Publication number: 20190123414
    Abstract: An input waveguide (6) having one end connected between an L-shaped waveguide (1a) and an L-shaped waveguide (1f) and another end connected to the PORT (1); an output waveguide (7) having one end connected between the L-shaped waveguide (1a) and a flat waveguide (1b) and another end connected to the PORT (2); an output waveguide (8) having one end connected between the flat waveguide (1b) and an L-shaped waveguide (1c) and another end connected to the PORT (3); an output waveguide (9) having one end connected between the L-shaped waveguide (1c) and an L-shaped waveguide (1d) and another end connected to the PORT (4); and a plurality of branching waveguides (10) each having one end connected to the output waveguide (7) and another end connected to the output waveguide (8) are provided.
    Type: Application
    Filed: May 24, 2016
    Publication date: April 25, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yu USHIJIMA, Hidenori YUKAWA, Motomi WATANABE, Naofumi YONEDA
  • Publication number: 20180366826
    Abstract: To achieve a phase shift circuit capable of obtaining good reflection characteristics and a desired phase shift amount at the center frequency without increasing the length in the propagating direction, the phase shift circuit includes: an input waveguide having an input terminal at one end; an output waveguide having an output terminal at one end; a middle waveguide whose thickness is thinner than a thickness of the input waveguide or the output waveguide and whose central position in a thickness direction different from a central position in the thickness direction of the input waveguide or the output waveguide; a first tapered waveguide which connects another end of the input waveguide with one end of the middle waveguide; and a second tapered waveguide which connects another end of the output waveguide with another end of the middle waveguide.
    Type: Application
    Filed: March 18, 2016
    Publication date: December 20, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidenori YUKAWA, Yu USHIJIMA, Motomi WATANABE, Naofumi YONEDA
  • Publication number: 20180358679
    Abstract: A third coupler (3c) outputs a signal outputted from a first coupler (3a) to an input terminal (8-1) of a second septum polarizer (8b), and outputs a signal outputted from a second coupler (3b) to an input terminal (8-2) of a first septum polarizer (8a).
    Type: Application
    Filed: January 12, 2016
    Publication date: December 13, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidenori YUKAWA, Yu USHIJIMA, Motomi WATANABE, Naofumi YONEDA