[n: Collimation, Shaping Or Circularisation Of The Source Beam, E.g. Use Of Slits Or Filters To Modify The Source Beam] {g11b 7/125d} Patents (Class G9B/7.102)
  • RECORDING METHOD, RECORDING DEVICE AND INFORMATION RECORDING MEDIUM
    Publication number: 20120057448
    Abstract: A writing method according to the present invention is a method for writing a data sequence as a combination of marks and spaces on an information recording medium by condensing a laser beam through a lens. The writing method is characterized in that a cooling pulse for recording a mark that is even shorter than the limit of optical resolution of the laser beam and another cooling pulse for recording a mark that is still longer than the limit of the optical resolution of the laser beam are applied under mutually different conditions.
    Type: Application
    Filed: March 7, 2011
    Publication date: March 8, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Kiyotaka Ito, Yasumori Hino, Naoyasu Miyagawa, Atsushi Nakamura