Patents by Inventor Wuxing Gan

Wuxing Gan 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).

  • Patent number: 8456643
    Abstract: A method and system for determining a shape of a portion of an air-bearing surface (ABS) of a head residing on a slider are described. The ABS is configured to fly at a fly height from and with a velocity with respect to a disk during normal operating conditions. The method and system include driving at least one heater residing in the head while the slider is substantially at the normal operating conditions with respect to the disk and the fly height. The shape of the portion of the ABS changes in response to the heater(s) being driven. The method and system also include performing Doppler measurements on the slider while the heater is driven. The shape may then be determined based on the Doppler measurements.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: June 4, 2013
    Assignee: Western Digital (Fremont), LLC
    Inventors: Vijay Prabhakaran, Wuxing Gan, Ladislav R. Pust, David E. Fowler, Lanshi Zheng
  • Publication number: 20110286129
    Abstract: A method and system for determining a shape of a portion of an air-bearing surface (ABS) of a head residing on a slider are described. The ABS is configured to fly at a fly height from and with a velocity with respect to a disk during normal operating conditions. The method and system include driving at least one heater residing in the head while the slider is substantially at the normal operating conditions with respect to the disk and the fly height. The shape of the portion of the ABS changes in response to the heater(s) being driven. The method and system also include performing Doppler measurements on the slider while the heater is driven. The shape may then be determined based on the Doppler measurements.
    Type: Application
    Filed: September 20, 2010
    Publication date: November 24, 2011
    Applicant: WESTERN DIGITAL (FREMONT), LLC
    Inventors: VIJAY PRABHAKARAN, WUXING GAN, LADISLAV R. PUST, DAVID E. FOWLER, LANSHI ZHENG
  • Patent number: 6583961
    Abstract: An air bearing surface for use on a magnetic read/write head. The air bearing surface provides a stable flight profile while exhibiting exception load/unload characteristics through the use of a plurality of pads providing high pressure areas as well as a central cavity providing a sub-ambient pressure to counter the high pressure areas. The channel is set a predetermined distance from the leading edge of the air bearing, the predetermined distance being greater than with prior art designs. A channel extends from the leading edge to the cavity to allow airflow into the cavity. The channel and the set back of the cavity both act in conjunction to facilitate unloading of the air bearing by preventing excessive sub ambient pressures.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: June 24, 2003
    Assignee: Read-Rite Corporation
    Inventors: Pablo G. Levi, Manuel Anaya-Dufresne, Wuxing Gan, Jesse Jianxian Dong
  • Publication number: 20030011937
    Abstract: A ramp assembly for loading and unloading of one or more sliders at the inner diameter of a disk drive. The disk drive has a base casting and one or more disk surfaces. The ramp assembly includes one or more projecting members, each projecting member including a disk-facing surface, a ramp which itself includes an inclined surface, a base member, which fastens to the base casting of the disk drive, and an upright member which connects the projecting member to the base member.
    Type: Application
    Filed: June 20, 2001
    Publication date: January 16, 2003
    Inventors: Wuxing Gan, Venkat Ramesh Koka
  • Patent number: 6356412
    Abstract: An air bearing surface for use on a magnetic read/write head. The air bearing surface provides a stable flight profile while exhibiting exception load/unload characteristics through the use of a plurality of pads providing high pressure areas as well as a central cavity providing a sub-ambient pressure to counter the high pressure areas. The channel is set a predetermined distance from the leading edge of the air bearing, the predetermined distance being greater than with prior art designs. A channel extends from the leading edge to the cavity to allow airflow into the cavity. The channel and the set back of the cavity both act in conjunction to facilitate unloading of the air bearing by preventing excessive sub ambient pressures.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: March 12, 2002
    Assignee: Read-Rite Corporation
    Inventors: Pablo G. Levi, Manuel Anaya-Dufresne, Wuxing Gan, Jesse Jianxian Dong
  • Publication number: 20020018320
    Abstract: An air bearing surface for use on a magnetic read/write head. The air bearing surface provides a stable flight profile while exhibiting exception load/unload characteristics through the use of a plurality of pads providing high pressure areas as well as a central cavity providing a sub-ambient pressure to counter the high pressure areas. The channel is set a predetermined distance from the leading edge of the air bearing, the predetermined distance being greater than with prior art designs. A channel extends from the leading edge to the cavity to allow airflow into the cavity. The channel and the set back of the cavity both act in conjunction to facilitate unloading of the air bearing by preventing excessive sub ambient pressures.
    Type: Application
    Filed: September 19, 2001
    Publication date: February 14, 2002
    Inventors: Pablo G. Levi, Manuel Anaya-Dufresne, Wuxing Gan, Jesse Jianxian Dong