Patents by Inventor Masaharu KANNO

Masaharu KANNO 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 OF TIMING CONTROL FOR SERVO-DATA DETECTION
    Publication number: 20110102929
    Abstract: A method of timing control for servo-data detection in a disk drive. The method includes retrieving a plurality of servo sectors arranged discretely in a circumferential direction of a disk and measuring time intervals between servo sectors. The method also includes determining in which zone of a plurality of preset zones each of the measured time intervals is included. Moreover, the method also includes determining variations in time intervals from the zones of a plurality of previous time intervals, and modifying timing for servo-sector detection if variations in time intervals are within a preset range.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 5, 2011
    Inventors: Masaharu KANNO, Yosuke Hamada, So Ogiwara, Tatsuya Katoh, Masahiro Shimizu