Patents by Inventor Yousuke SUMI

Yousuke SUMI 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: 20160036283
    Abstract: The present invention provides a coil for a low-voltage inverter drive motor having insulation performance preventing the insulation breakdown even when partial discharge occurs within the warranty period of the motor. The coil is used for a low-voltage inverter drive motor that is driven at a low voltage of less than AC 700 V by an inverter power supply, the coil is formed of an insulated wire, and a total discharged charge amount discharged until an expiration of the warranty period is less than 10 C/mm2. The insulated wire is provided with a conductive wire and an insulation coating layer, the insulation coating layer being disposed covering the periphery of the conductive wire.
    Type: Application
    Filed: March 26, 2014
    Publication date: February 4, 2016
    Applicant: HITACHI METALS, LTD.
    Inventors: Masashi ARAI, Yousuke SUMI, Hidehito HANAWA, Hideyuki KIKUCHI