Dynamic optical information storage or retrieval – Optical storage medium structure
Reexamination Certificate
2007-06-12
2007-06-12
Davis, David (Department: 2627)
Dynamic optical information storage or retrieval
Optical storage medium structure
Reexamination Certificate
active
10444172
ABSTRACT:
An optical recording medium includes a substrate, a first recording layer formed on the substrate and containing an element selected from the group consisting of Si, Sn and Ge as a primary component, and a second recording layer located in the vicinity of the first recording layer and containing Ag as a primary component, the optical recording medium being constituted to be irradiated by a laser beam projected onto the side opposite from the substrate. According to the thus constituted optical recording medium, it is possible to decrease a noise level and improve a C/N ratio in a reproduced signal.
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Aoshima Masaki
Hirata Hideki
Inoue Hiroyasu
Mishima Koji
Utsunomiya Hajime
Davis David
Seed IP Law Group PLLC
TDK Corporation
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