Patents by Inventor Shinichiro Kouhara

Shinichiro Kouhara 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 and apparatus for servo control using spiral servo information in a disk drive
    Patent number: 7423835
    Abstract: According to one embodiment, in a disk drive using a disk medium storing spiral servo information, a CPU generates virtual servo information having assumed virtual track centers corresponding to centers of concentric data tracks. The CPU performs control to position a head to the center of the concentric data track by using the virtual servo information.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: September 9, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Sado, Masahide Yatsu, Masafumi Iwashiro, Shouji Nakajima, Seiji Mizukoshi, Shinichiro Kouhara
  • Method and apparatus for servo control using spiral servo information in a disk drive
    Publication number: 20070097539
    Abstract: According to one embodiment, in a disk drive using a disk medium storing spiral servo information, a CPU generates virtual servo information having assumed virtual track centers corresponding to centers of concentric data tracks. The CPU performs control to position a head to the center of the concentric data track by using the virtual servo information.
    Type: Application
    Filed: November 1, 2006
    Publication date: May 3, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hideo Sado, Masahide Yatsu, Masafumi Iwashiro, Shouji Nakajima, Seiji Mizukoshi, Shinichiro Kouhara