Patents by Inventor Baiying Hang

Baiying Hang 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).

  • Self-start synchronous motor with permanent magnets and at least one frictional agitation joint, method for manufacturing the same and compressor comprising the same
    Patent number: 7531934
    Abstract: In a method of manufacturing a self-start synchronous motor for preventing deterioration of permanent magnets used in a rotor, and also for enhancing the efficiency of the self-start synchronous motor, the self-start synchronous motor comprising a stator having a stator core and windings wound around the stator core, and a rotor having an outer diameter slightly smaller than an inner diameter of the stator and arranged inside of the stator. The rotor is provided with a rotor core, a plurality of conductor bars embedded in the outer peripheral portion of the rotor core over an entire periphery thereof, end rings provided on opposite end sides of the conductor bars and constituting a squirrel cage conductor in cooperation with the conductor bars, and a plurality of permanent magnets embedded in the rotor core and arranged at a position inner than that of an inner peripheral surface of the conductor bars.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: May 12, 2009
    Assignee: Hitachi Appliances, Inc.
    Inventors: Baiying Hang, Tomio Yoshikawa, Yasuro Ohishi, Akeshi Takahashi, Haruo Koharagi
  • Self-start synchronous motor, method for manufacturing the same and compressor
    Publication number: 20060267441
    Abstract: In a method of manufacturing a self-start synchronous motor for preventing deterioration of permanent magnets used in a rotor, and also for enhancing the efficiency of the self-start synchronous motor, the self-start synchronous motor comprising a stator having a stator core and windings wound around the stator core, and a rotor having an outer diameter slightly smaller than an inner diameter of the stator and arranged inside of the stator. The rotor is provided with a rotor core, a plurality of conductor bars embedded in the outer peripheral portion of the rotor core over an entire periphery thereof, end rings provided on opposite end sides of the conductor bars and constituting a squirrel cage conductor in cooperation with the conductor bars, and a plurality of permanent magnets embedded in the rotor core and arranged at a position inner than that of an inner peripheral surface of the conductor bars.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 30, 2006
    Inventors: Baiying Hang, Tomio Yoshikawa, Yasuro Ohishi, Akeshi Takahashi, Haruo Koharagi