Invention Grant
US08119216B2 Optical information recording medium and manufacturing method thereof 有权
光信息记录介质及其制造方法

Optical information recording medium and manufacturing method thereof
Abstract:
An optical information recording medium has at least an optical reflective layer, an optical recording layer, an protective layer, and an optical transparency layer formed in that order on the main surface of a disc-shaped substrate. An area in which the protective layer is formed is made wider than an area in which the reflective layer is formed, and made narrower than an area in which the optical transparency layer is formed.
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