Dynamic information storage or retrieval – Storage medium structure – Layered
Reexamination Certificate
2006-02-07
2006-02-07
Castro, Angel (Department: 2653)
Dynamic information storage or retrieval
Storage medium structure
Layered
C430S270120
Reexamination Certificate
active
06996055
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, Ge, C and Al as a primary component, and a second recording layer located in the vicinity of the first recording layer and containing Zn 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 and the total thickness of the first recording layer and the second recording layer being equal to or thinner than 30 nm. 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
Castro Angel
SEED IP Law Group PLLC
TDK Corporation
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