Patents by Inventor Yasuharu HAYASAKA

Yasuharu HAYASAKA 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: 20230003430
    Abstract: According to one embodiment, a refrigeration cycle apparatus includes a motor which including a plurality of phase windings in a mutually unconnected state, a first inverter which controls application of electric power to one ends of the phase windings, a second inverter which controls application of electric power to the other ends of the phase windings, switches connected between the other ends of the phase windings, and a motor controller which selectively sets one of an open-windings mode and a star-connection mode. The motor controller sets, at the time of startup of the motor, the open-windings mode.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 5, 2023
    Inventors: Hiroaki MATSUMOTO, Toshiyuki MORIMOTO, Yasuharu HAYASAKA