Patents by Inventor Chin-Hao Liu

Chin-Hao Liu 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).

  • Micro-motor with low cogging torque
    Patent number: 6781277
    Abstract: A micro-motor with low cogging torque. The micro-motor includes a stator, a rotor, first and second magnetically conductive assemblies, and a bobbin. The first and second magnetically conductive assemblies are respectively comprised of a plurality of magnetically conductive sheets stacked together. The magnetically conductive sheets are each formed with a plurality of asymmetrical salient teeth. Furthermore, at least one of the magnetically conductive sheets is disposed reversely relative to the other magnetically conductive sheets. The rotor is coupled to the stator.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: August 24, 2004
    Assignee: Delta Electronics Inc.
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Shou Te Yu, Chin-Hao Liu
  • Micro-motor with low cogging torque
    Publication number: 20020171316
    Abstract: A micro-motor with low cogging torque. The micro-motor includes a stator, a rotor, first and second magnetically conductive assemblies, and a bobbin. The first and second magnetically conductive assemblies are respectively comprised of a plurality of magnetically conductive sheets stacked together. The magnetically conductive sheets are each formed with a plurality of asymmetrical salient teeth. Furthermore, at least one of the magnetically conductive sheets is disposed reversely relative to the other magnetically conductive sheets. The rotor is coupled to the stator.
    Type: Application
    Filed: May 6, 2002
    Publication date: November 21, 2002
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Shou Te Yu, Chin-Hao Liu