Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2011-03-15
2011-03-15
Tran, Thang V (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S094000
Reexamination Certificate
active
07907502
ABSTRACT:
An optical information recording medium includes a substrate, n information recording layers provided on the substrate, and spacer layers, each of which is provided so as to be interposed between the information recording layers, wherein each of (n−1) or more of the information recording layers has a layer number information part that is formed in correspondence with one or more recording marks X and contains layer number information, where n represents an integer of not less than 2, and the layer number information is information used for determining which a given information recording layer is among the n information recording layers. Each recording mark X has a length in a circumferential direction longer than a length of a recording mark Y used for recording another information in the information recording layers.
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Japanese Office Action from the correspondence JP No. 2006-542469. mailed Aug. 24, 2010.
Nishikiori Keiji
Ohno Eiji
Tomiyama Morio
Danielsen Nathan A
Hamre Schumann Mueller & Larson P.C.
Panasonic Corporation
Tran Thang V
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