[n: For Mixed Data, I.e. Continuous And Discontinuous Data] [n9607] {g11b 20/12d8} Patents (Class G9B/20.031)
  • Magnetic recording medium formatted with ROM and RAM regions
    Patent number: 8077416
    Abstract: A magnetic recording medium has a RAM region and a ROM region. The RAM region includes a plurality of first tracks each having a first magnetic portion. The first magnetic portions in adjacent tracks are separated from each other. The ROM region includes a plurality of second tracks each having a second magnetic portion. A width of the second magnetic portions in a direction perpendicular to a track direction of the first tracks is larger than that of the first magnetic portions in the perpendicular direction.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: December 13, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masatoshi Sakurai, Seiji Morita, Akira Kikitsu, Yoshiyuki Kamata
  • Magnetic recording medium Formatted with ROM and RAM regions
    Patent number: 7738203
    Abstract: A magnetic recording medium has a RAM region and a ROM region. The RAM region includes a plurality of first tracks each having a first magnetic portion. The first magnetic portions in adjacent tracks are separated from each other. The ROM region includes a plurality of second tracks each having a second magnetic portion. A width of the second magnetic portions in a direction perpendicular to a track direction of the first tracks is larger than that of the first magnetic portions in the perpendicular direction.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: June 15, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masatoshi Sakurai, Seiji Morita, Akira Kikitsu, Yoshiyuki Kamata