Patents by Inventor Syunji Saitou

Syunji Saitou 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).

  • Storage apparatus, control method, control device, and program which can control flying height of head accurate
    Patent number: 7468854
    Abstract: An amplitude measurement unit measures an amplitude of a read signal from a preamble unit in a servo area of a predetermined frame number m per one rotation of the recording medium for a predetermined cycle number n while increasing an electric power amount distributed to the heater in the state in which the head is positioned to a track on the recording medium, and a mean amplitude calculating unit calculates a mean amplitude from an amplitude measurement value which is measured by the number which is the frame number m multiplied by the cycle number n.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: December 23, 2008
    Assignee: Fujitsu Limited
    Inventors: Satoshi Yamashita, Syunji Saitou, Yukio Abe, Shigenori Yanagi
  • Storage apparatus, control method, control device, and program
    Publication number: 20080043363
    Abstract: An amplitude measurement unit measures an amplitude of a read signal from a preamble unit in a servo area of a predetermined frame number m per one rotation of the recording medium for a predetermined cycle number n while increasing an electric power amount distributed to the heater in the state in which the head is positioned to a track on the recording medium, and a mean amplitude calculating unit calculates a mean amplitude from an amplitude measurement value which is measured by the number which is the frame number m multiplied by the cycle number n.
    Type: Application
    Filed: December 22, 2006
    Publication date: February 21, 2008
    Inventors: Satoshi Yamashita, Syunji Saitou, Yukio Abe, Shigenori Yanagi