Patents Represented by Attorney Willaim A. Wiggin & Dana Simons

Find this attorney in the Justia Lawyer Directory

  • Stabilized dye compositions for optical recording media
    Patent number: 6077584
    Abstract: A composition suitable for forming an optical information recording layer for carrying out recording and readout with laser beams, which comprises at least one cyanine dye, and at least one leuco compound of formulae (VII) or (VIII); and optionally, at least one aminium compound of formulae (IV) or (V).
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: June 20, 2000
    Assignee: Media Chemical Corp.
    Inventor: Rodney J. Hurditch