Patents by Inventor Junfeng Duan

Junfeng Duan 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).

  • Angular motion control system and method
    Patent number: 9239101
    Abstract: An apparatus and method for imparting an angularly rotational movement. The apparatus includes a cylinder having an internal portion, a rod operatively positioned within the internal portion of the cylinder, a first bearing operatively positioned about rod; a second unidirectional bearing operatively positioned about the rod and a motion program for selectively inputting incremental radial motion to the rod. The apparatus may also include a force generator for linearly moving the rod in a linear axial motion along an axis of the cylinder.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: January 19, 2016
    Assignee: Zedi Canada Inc.
    Inventors: Junfeng Duan, Tokunosuke Ito
  • Angular Motion Control System and Method
    Publication number: 20140373651
    Abstract: An apparatus and method for imparting an angularly rotational movement. The apparatus includes a cylinder having an internal portion, a rod operatively positioned within the internal portion of the cylinder, a first bearing operatively positioned about rod; a second unidirectional bearing operatively positioned about the rod and a motion program for selectively inputting incremental radial motion to the rod. The apparatus may also include a force generator for linearly moving the rod in a linear axial motion along an axis of the cylinder.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 25, 2014
    Inventors: Junfeng Duan, Tokunosuke Ito