Patents by Inventor Takuya FURUYAMA

Takuya FURUYAMA 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: 20210050811
    Abstract: A motor drive device includes a single-phase inverter which is an inverter including a plurality of switching elements. The inverter converts a direct-current voltage output from a direct-current power supply into an alternating-current voltage, by operation of the plurality of switching elements operating, and applies the alternating-current voltage to a motor. The motor drive device includes a control power supply outputting power having a voltage lower than the direct-current voltage, by using the direct-current voltage. The motor drive device includes a drive signal generation unit driven by the power. The drive signal generation unit generates drive signals driving the plurality of switching elements, and outputs the generated drive signals to the plurality of switching elements. The motor drive device includes a power supply switch operating so as to allow supply of the power from the control power supply to the drive signal generation unit when a rotation speed of the motor is higher than a threshold.
    Type: Application
    Filed: March 23, 2018
    Publication date: February 18, 2021
    Inventors: Yuji TAKAYAMA, Haruka MATSUO, Kazunori HATAKEYAMA, Tomoyuki KAMIYAMA, Takuya FURUYAMA, Masami YORITA, Takanobu KONDO