Patents by Inventor Luke Hung Leung Chung

Luke Hung Leung Chung 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).

  • Method of determining flying height of magnetic head
    Patent number: 8085491
    Abstract: For obtaining a flying height of a magnetic head from a magnetic disk, the magnetic head being placed in a slider arranged at an interval with the magnetic disk, an initial setting process and a flying height detecting process are performed. In the initial setting process, driving power to a heater is increased gradually, from a state where the heater arranged at a position in proximity to the magnetic head in the slider is not driven, until the magnetic head makes contact with the magnetic disk. Then, in each stage, an electrical resistance value of the sensor arranged at a position in proximity to the magnetic head in the slider, which is increased due to the heat from heater, and either an approach distance of the magnetic head toward the magnetic disk or the flying height of the magnetic head from the magnetic disk are acquired.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: December 27, 2011
    Assignees: TDK Corporation, SAE Magnetics (H.K.) Ltd.
    Inventors: Yosuke Antoku, Noboru Yamanaka, Masashi Sano, Kosuke Tanaka, Man Tse, Eric Cheuk Wing Leung, Luke Hung Leung Chung
  • Method of determining flying height of magnetic head
    Publication number: 20110211275
    Abstract: For obtaining a flying height of a magnetic head from a magnetic disk, the magnetic head being placed in a slider arranged at an interval with the magnetic disk, an initial setting process and a flying height detecting process are performed. In the initial setting process, driving power to a heater is increased gradually, from a state where the heater arranged at a position in proximity to the magnetic head in the slider is not driven, until the magnetic head makes contact with the magnetic disk. Then, in each stage, an electrical resistance value of the sensor arranged at a position in proximity to the magnetic head in the slider, which is increased due to the heat from heater, and either an approach distance of the magnetic head toward the magnetic disk or the flying height of the magnetic head from the magnetic disk are acquired.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Applicants: TDK Corporation, SAE Magnetics (H.K.) Ltd.
    Inventors: Yosuke Antoku, Noboru Yamanaka, Masashi Sano, Kosuke Tanaka, Man Tse, Eric Cheuk Wing Leung, Luke Hung Leung Chung