Patents by Inventor Takashi Imasato

Takashi Imasato 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).

  • Switch device
    Patent number: 11178753
    Abstract: Bus bars are soldered to a wiring pattern of a printed board to which the bus bars are connected, and the bus bars are screwed to the printed board. Tips of bolts passing through holes in the bus bars and holes in the punted board may be tightened using nuts. The holes in the printed board may be electrically connected to the wiring pattern.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: November 16, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Hideyuki Sasao, Takashi Imasato
  • Control device for semiconductor switch, and electrical power system
    Patent number: 10855271
    Abstract: In a control device that drives a semiconductor switch element, a first control switch is connected between a signal line and a source terminal or an emitter terminal of a semiconductor switch element. The signal line supplies a driving signal to a gate terminal or a base terminal of semiconductor switch element. The first control switch is controlled to an ON state when the semiconductor switch element is controlled to an OFF state. A second control switch is connected between the signal line and the source terminal or the emitter terminal in parallel with the first control switch. The second control switch is turned on when a potential of the source terminal or the emitter terminal becomes a negative potential.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: December 1, 2020
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takashi Imasato, Hideyuki Sasao
  • CONTROL DEVICE FOR SEMICONDUCTOR SWITCH, AND ELECTRICAL POWER SYSTEM
    Publication number: 20200083881
    Abstract: In a control device that drives a semiconductor switch element, a first control switch is connected between a signal line and a source terminal or an emitter terminal of a semiconductor switch element. The signal line supplies a driving signal to a gate terminal or a base terminal of semiconductor switch element. The first control switch is controlled to an ON state when the semiconductor switch element is controlled to an OFF state. A second control switch is connected between the signal line and the source terminal or the emitter terminal in parallel with the first control switch. The second control switch is turned on when a potential of the source terminal or the emitter terminal becomes a negative potential.
    Type: Application
    Filed: November 22, 2017
    Publication date: March 12, 2020
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Takashi Imasato, Hideyuki Sasao
  • METHOD FOR CONNECTING BUS BAR, PRINTED BOARD, AND SWITCH DEVICE
    Publication number: 20190191550
    Abstract: Bus bars are soldered to a wiring pattern of a printed board to which the bus bars are connected, and the bus bars ate screwed to the printed board. Tips of bolts passing through holes in the bus bars and holes in the punted board may be tightened using nuts. The holes in the printed board may be electrically connected to the wiring pattern.
    Type: Application
    Filed: May 10, 2017
    Publication date: June 20, 2019
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Hideyuki Sasao, Takashi Imasato