Optical information recording medium and method for...

Details Optical information recording medium and method for... Optical information recording medium and method for...

2007-01-30

2007-01-30

Hess, Bruce H. (Department: 1774)

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

C428S064500, C430S270130

Reexamination Certificate

active

10947192

ABSTRACT:
An optical information recording medium on which information can be recorded and reproduced by using a laser beam is provided. The medium includes a substrate with a guide groove and a multilayered metal film including at least a first metal layer, a barrier layer and a second metal layer that are deposited on the substrate in this order, or a single layer metal film including at least a metal layer and a recording layer are deposited on the substrate in this order. The second metal layer and the metal layer of the single layer metal film are a material containing Al and a metal element (an additive) as main components.

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