Patents by Inventor Yuusuke Matsuda

Yuusuke Matsuda 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).

  • Disk drive and method for adjusting common-mode voltage of an element on a head-slider
    Patent number: 8125727
    Abstract: A disk drive. The disk drive includes a disk configured to store data, a motor configured to rotate the disk, a head-slider and a controller. The head-slider includes a slider configured to fly in proximity to a recording surface of the disk, and an element on the slider. The controller is configured to measure a fly height between the head-slider and the disk at different common-mode voltages of the element to determine an operational common-mode voltage from a measurement result.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: February 28, 2012
    Assignee: Hitachi Global Storgae Technologies, Netherlands B.V.
    Inventors: Kazushi Tsuwako, Yuusuke Matsuda, Masashi Murai, Toshiya Shiramatsu
  • DISK DRIVE AND METHOD FOR ADJUSTING COMMON-MODE VOLTAGE OF AN ELEMENT ON A HEAD-SLIDER
    Publication number: 20110090586
    Abstract: A disk drive. The disk drive includes a disk configured to store data, a motor configured to rotate the disk, a head-slider and a controller. The head-slider includes a slider configured to fly in proximity to a recording surface of the disk, and an element on the slider. The controller is configured to measure a fly height between the head-slider and the disk at different common-mode voltages of the element to determine an operational common-mode voltage from a measurement result.
    Type: Application
    Filed: September 18, 2009
    Publication date: April 21, 2011
    Inventors: Kazushi Tsuwako, Yuusuke Matsuda, Masashi Murai, Toshiya Shiramatsu