Patents by Inventor Wen Jun Huan

Wen Jun Huan 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).

  • Electric motor
    Patent number: 7834491
    Abstract: A small size permanent magnet direct current motor has a housing accommodating a permanent magnet stator and a wound rotor. The rotor has a rotor core with a diameter of 23 mm±3 mm and 12 poles and a cylindrical commutator. The motor has an output power of more than 25 watts.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: November 16, 2010
    Assignee: Johnson Electric S.A.
    Inventors: Wen Jun Huan, Jian Wen Zhang, Wai Shing Ip
  • ELECTRIC MOTOR
    Publication number: 20090091211
    Abstract: A small size permanent magnet direct current motor has a housing accommodating a permanent magnet stator and a wound rotor. The rotor has a rotor core with a diameter of 23 mm±3 mm and 12 poles and a cylindrical commutator. The motor has an output power of more than 25 watts.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 9, 2009
    Inventors: Wen Jun HUAN, Jian Wen Zhang, Wai Shing Ip
  • Electric motor
    Patent number: D601958
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: October 13, 2009
    Assignee: Johnson Electric S.A.
    Inventors: Wen Jun Huan, Jian Wen Zhang, Wai Shing Ip