Patents by Inventor Yap Pow Ming

Yap Pow Ming 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).

  • Humidity control system for heat-assisted magnetic recording hard disk drive
    Patent number: 10734035
    Abstract: A hard disk drive comprises a sensor configured to detect a mixing ratio within the hard disk drive and a membrane electrode assembly. The membrane electrode assembly comprises a gas flow path that couples an inside of the hard disk drive to an outside of the hard disk drive, and the gas flow path includes a cathode and anode that electrolytically remove water vapor from the inside of the hard disk drive. The drive further includes an energy source coupled to the membrane electrode assembly and a controller coupled to the sensor and the energy source. The controller is configured to activate the energy source in response to the sensor detecting a mixing ratio greater than a threshold mixing ratio and to deactivate the energy source in response to the sensor detecting a mixing ratio less than the threshold mixing ratio.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: August 4, 2020
    Assignee: Seagate Technology LLC
    Inventors: Hao Sun, Noppavit Yongrattana, Lionel Young, Yap Pow Ming
  • Disk clamping mechanism including annular ring member
    Patent number: 10460758
    Abstract: A disk drive assembly including a spindle motor including a hub and a central axis, at least one disk disk having a central opening positioned on the hub and concentric about the central axis, an annular ring member concentric about the central axis, wherein a first portion of the annular ring member is in contact with an outer surface of a top disk of the disk stack, and a disk clamp ring screw adjacent to and in contact with a second portion of the annular ring member, wherein the disk clamp ring screw provides a clamping force to at least partially compress the annular ring member toward the top disk of the disk stack.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 29, 2019
    Assignee: Seagate Technology LLC
    Inventors: Yap Pow Ming, Su Ying, Cho Kok Liang, Lee Chee Xian, Lim Jun Long
  • DISK CLAMPING MECHANISM INCLUDING ANNULAR RING MEMBER
    Publication number: 20190279677
    Abstract: A disk drive assembly including a spindle motor including a hub and a central axis, at least one disk disk having a central opening positioned on the hub and concentric about the central axis, an annular ring member concentric about the central axis, wherein a first portion of the annular ring member is in contact with an outer surface of a top disk of the disk stack, and a disk clamp ring screw adjacent to and in contact with a second portion of the annular ring member, wherein the disk clamp ring screw provides a clamping force to at least partially compress the annular ring member toward the top disk of the disk stack.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 12, 2019
    Inventors: Yap Pow Ming, Su Ying, Cho Kok Liang, Lee Chee Xian, Lim Jun Long