Patents by Inventor Yongjun Liang

Yongjun Liang 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).

  • Magnetic and encapsulation contamination control for disk drives
    Patent number: 8149535
    Abstract: A disk device with disk contamination control having a spindle for rotating at least one disk. A spindle hub located on the spindle. A disk clamp for clamping the at least one disk on the hub. A magnetic clamp seal magnetically and removably attached to the disk clamp wherein the magnetic clamp seal encapsulates disk contaminants between the clamp and the clamp seal. The magnetic clamp seal magnetically collects metallic contaminants within a sealed housing.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: April 3, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
    Inventors: Na Li, Yongjun Liang, Shaoyong Liu, Yi Zhao Yao
  • MAGNETIC AND ENCAPSULATION CONTAMINATION CONTROL FOR DISK DRIVES
    Publication number: 20100128388
    Abstract: A disk device with disk contamination control having a spindle for rotating at least one disk. A spindle hub located on the spindle. A disk clamp for clamping the at least one disk on the hub. A magnetic clamp seal magnetically and removably attached to the disk clamp wherein the magnetic clamp seal encapsulates disk contaminants between the clamp and the clamp seal. The magnetic clamp seal magnetically collects metallic contaminants within a sealed housing.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 27, 2010
    Inventors: Na Li, Yongjun Liang, Shaoyong Liu, Yi Zhao Yao