Patents by Inventor Lanzhou Yan

Lanzhou Yan 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).

  • Linear motor and stage apparatus
    Patent number: 9755493
    Abstract: A linear motor includes a magnet unit and a coil unit. The magnet unit includes two magnet arrays oppositely parallel and symmetrically located on a magnetic yoke: a first and a second magnet array. The coil unit is disposed in a magnetic gap between the two magnet arrays. In a spatial rectangular coordinate system defined by X, Y and Z axes, the coil unit includes a first and a second coil array arranged in a stacked manner in the Z-axis direction and staggered from each other by a distance of ?P in the Y-axis direction.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: September 5, 2017
    Assignee: SHANGHAI MICRO ELECTRONICS EQUIPMENT (GROUP) CO., LTD.
    Inventors: Liwei Wu, Qingsheng Chen, Lanzhou Yan
  • LINEAR MOTOR AND STAGE APPARATUS
    Publication number: 20150137624
    Abstract: A linear motor includes a magnet unit and a coil unit. The magnet unit includes two magnet arrays oppositely parallel and symmetrically located on a magnetic yoke: a first and a second magnet array. The coil unit is disposed in a magnetic gap between the two magnet arrays. In a spatial rectangular coordinate system defined by X, Y and Z axes, the coil unit includes a first and a second coil array arranged in a stacked manner in the Z-axis direction and staggered from each other by a distance of ?P in the Y-axis direction.
    Type: Application
    Filed: July 2, 2013
    Publication date: May 21, 2015
    Inventors: Liwei Wu, Qingsheng Chen, Lanzhou Yan