Patents by Inventor Kohei SHINOMIYA

Kohei SHINOMIYA 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).

  • Transistor drive circuit and motor drive control apparatus
    Patent number: 10644689
    Abstract: A transistor drive circuit drives a bipolar-type transistor and a MOSFET that are connected in parallel to each other. A temperature detection element that detects a temperature of a the bipolar-type transistor or the MOSFET. When the temperature is equal to or less than a threshold, the transistor drive circuit turns on both of the MOSFET and the bipolar-type transistor. When the temperature exceeds the threshold, the transistor drive circuit turns on only the bipolar-type transistor.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: May 5, 2020
    Assignee: DENSO CORPORATION
    Inventors: Kohei Shinomiya, Takahiro Iwamura, Akimasa Niwa, Masahiro Yamamoto, Seiji Nishimoto
  • TRANSISTOR DRIVE CIRCUIT AND MOTOR DRIVE CONTROL APPARATUS
    Publication number: 20190363706
    Abstract: A transistor drive circuit drives a bipolar-type transistor and a MOSFET that are connected in parallel to each other. A temperature detection element that detects a temperature of a the bipolar-type transistor or the MOSFET. When the temperature is equal to or less than a threshold, the transistor drive circuit turns on both of the MOSFET and the bipolar-type transistor. When the temperature exceeds the threshold, the transistor drive circuit turns on only the bipolar-type transistor.
    Type: Application
    Filed: July 31, 2017
    Publication date: November 28, 2019
    Applicant: DENSO CORPORATION
    Inventors: Kohei SHINOMIYA, Takahiro IWAMURA, Akimasa NIWA, Masahiro YAMAMOTO, Seiji NISHIMOTO