Dynamic optical information storage or retrieval – Optical storage medium structure – Disk protection
Reexamination Certificate
2004-03-10
2008-12-09
Chen, Tianjie (Department: 2627)
Dynamic optical information storage or retrieval
Optical storage medium structure
Disk protection
C428S064400
Reexamination Certificate
active
07464391
ABSTRACT:
An optical recording medium using Sn as the recording material to improve the jitter is provided, in which on the surface of a disc substrate11where a concave and convex shape dividing a track area is formed, are formed on the surface of the concave and convex shape a first protective layer31for protecting at least an optical recording layer31, an optical recording layer12using a chemical compound at least composed of tin (Sn), nitrogen (N) and oxygen (O), formed on the first protective layer, a second protective layer32for protecting this optical recording layer, formed on this optical recording layer, and a light-transmittable layer13formed on the second protective layer; with this structure, the optical recording layer12under high temperature and high humidity can be stabilized by means of the first and second protective layers31and32.
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Mitsui Norio
Nakano Jun
Oyamada Mitsuaki
Tamada Sakuya
Yasuda Kouichi
Chen Tianjie
Depke Robert J.
Rockey Depke & Lyons, LLC
Sony Corporation
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