Title: Optical information recording medium, and recording method and manufacturing method thereof
Application Number: 200580025412 Application Date: 2005.06.06
Publication Number: 1989462 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G03H1/02;G11B7/0065;G11B7/24;G11B7/26
Applicant(s) Name: Sumitomo Electric Industries Address:
Inventor(s) Name: Ushiro Toshihiko;Oda Kazuhiko;Matsuura Takashi
Attorney & Agent: dingye beng zhangtian shu
Abstract:
    An optical information recording medium, which allows easy recording at a high information density and has excellent durability, is provided at a low cost. The optical information recording medium includes a diamond-like carbon (DLC) layer (2) deposited on a board (1). Information is recorded in the optical information medium by irradiating a recording spot area selected from a plurality of recording spot areas with an energy beam (5) to increase the refraction index of the DLC layer (2) in the selected recording spot area.
Time: 11
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