Patents by Inventor Tomoko USUKURA

Tomoko USUKURA 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).

  • Switching power supply device and semiconductor device
    Patent number: 11171480
    Abstract: In a switching power supply device including an overload protection circuit, when a load state turns into an overload state due to a decrease in an input voltage, an overload protection signal is activated in response to activation of an overload detection signal, and the overload protection signal is deactivated when an input low voltage detection signal is in an inactive state.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: November 9, 2021
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Takashi Saji, Tomoko Usukura
  • SWITCHING POWER SUPPLY DEVICE AND SEMICONDUCTOR DEVICE
    Publication number: 20190181634
    Abstract: In a switching power supply device including an overload protection circuit, when a load state turns into an overload state due to a decrease in an input voltage, an overload protection signal is activated in response to activation of an overload detection signal, and the overload protection signal is deactivated when an input low voltage detection signal is in an inactive state.
    Type: Application
    Filed: February 19, 2019
    Publication date: June 13, 2019
    Inventors: Takashi SAJI, Tomoko USUKURA