Patents by Inventor Alan Hing-Bun Tsang

Alan Hing-Bun Tsang 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: 7262934
    Abstract: A limit stop filter support apparatus for use in controlling fluidic currents and limiting movement of an actuator within a housing, such as in a data storage device. First and second filter retention members extend from a filter support base to confine opposing ends of a filter used to filter fluidic currents within the housing, and a cantilevered limit stop extends from the base to contactingly limit movement of an actuator moveable within the housing. The limit stop preferably comprises a spring member supporting a latch member, the latch member selectively confining the actuator in a parked position. The first and second retention members each preferably include a shroud surface adjacent an outer peripheral edge of a rotatable storage medium to direct the fluidic currents established by rotation of the medium.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: August 28, 2007
    Assignee: Seagate Technology LLC
    Inventors: Carl Fred Adams, Steve Scott Eckerd, Cory Bert Welscher, Alan Hing-Bun Tsang, Jackson Wagner Nichols
  • Patent number: 6987640
    Abstract: A disc drive includes a base, at least one disc rotatably attached to the base, and an actuator assembly rotatably attached to base and supporting a slider and a transducer at a distal end thereof. The slider and transducer are positioned to be in transducing relation with respect to the disc. An air dam is positioned over the disc and near an arc through which the slider and transducer are rotated. The air dam is positioned so as to produce an area of high pressure substantially about an area including a portion of the arc through which the slider and transducer are rotated. Surfaces are aligned with and extend in a coplanar relationship with the disc to transfer an outwardly directed airflow away from the disc without impinging turbulent flow on or at the disc edge.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: January 17, 2006
    Assignee: Seagate Technology LLC
    Inventors: Alan Hing-Bun Tsang, James Eiji Kaneko, Srinivas Tadepalli, Cory Bert Welscher, Narintr Narisaranukul, Blaine Thomas Peterson, Carl Fred Adams
  • Publication number: 20020196581
    Abstract: A disc drive includes a base, at least one disc rotatably attached to the base, and an actuator assembly rotatably attached to base. The actuator assembly also has a suspension assembly having an attached end and a free end. The suspension assembly further includes a slider attached to attached to the free end of the suspension assembly; and a transducer attached to the slider. The slider and transducer are positioned to be in transducing relation with respect to the disc. The slider and transducer are rotated through an arc over the disc. An air dam is positioned over the disc and near the arc through which the slider and transducer are rotated. The air dam is positioned so as to produce an area of high pressure substantially about an area including a portion of the arc through which the slider and transducer are rotated.
    Type: Application
    Filed: August 27, 2002
    Publication date: December 26, 2002
    Inventors: Alan Hing-Bun Tsang, James Eiji Kaneko, Srinivas Tadepalli, Cory Bert Welscher, Narintr Narisaranukul, Blaine Thomas Peterson, Carl Fred Adams
  • Publication number: 20020036862
    Abstract: A disc drive includes a base, at least one disc rotatably attached to the base, and an actuator assembly rotatably attached to base. The actuator assembly also has a suspension assembly having an attached end and a free end. The suspension assembly further includes a slider attached to attached to the free end of the suspension assembly; and a transducer attached to the slider. The slider and transducer are positioned to be in transducing relation with respect to the disc. The slider and transducer are rotated through an arc over the disc. An air dam is positioned over the disc and near the arc through which the slider and transducer are rotated. The air dam is positioned so as to produce an area of high pressure substantially about an area including a portion of the arc through which the slider and transducer are rotated.
    Type: Application
    Filed: July 9, 2001
    Publication date: March 28, 2002
    Applicant: Seagate Technology LLC
    Inventors: Alan Hing-Bun Tsang, Narintr Narisaranukul, James Eiji Kaneko, Blaine Thomas Peterson, Carl Fred Adams