Patents Assigned to TeraStar Corporation
  • Optical near-field second surface recording
    Patent number: 6839306
    Abstract: A near-filed optical storage technique based on the “second surface” recording, where the optical storage medium is designed to have the recording layer formed between the reflective layer and the optically transparent substrate, and optical head and the medium maintain the near-filed configuration to achieve a numerical aperture greater than unity at the recording layer.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: January 4, 2005
    Assignee: TeraStar Corporation
    Inventor: Roger A. Hajjar
  • Optical recording head having a solid immersion lens
    Patent number: 6827802
    Abstract: An optical recording head is provided which includes a slider body having a leading edge. A void is formed in the slider body to receive a sphere of optically transparent material. The sphere is inserted into the void such that a portion of the sphere protrudes from the slider body. The protruding portion is lapped to be coplanar with a surface of the slider body to form a near-field lens. A mesa may be formed onto the lapped portion and may include a coil. The slider body, mesa, near-field lens, and coil may be formed in one batch process.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: December 7, 2004
    Assignee: TeraStar Corporation
    Inventors: John R. Osborne, Hong Li, John Berg, David Kindler