Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2006-05-02
2006-05-02
Dinh, Tan (Department: 2653)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
Reexamination Certificate
active
07038998
ABSTRACT:
An optical recording medium having a wobble desirably arranged in a production process when having wobble at part of interfaces of lands and grooves is provided. An optical recording medium comprising an approximately disk-shaped disk substrate15, formed in its surface with trenches15aand having projections and recesses divided for every track region by the trenches15a, on which are stacked an optical recording layer16having relief shapes corresponding with the trenches15aand a protection film17and of a format where both regions of the projections (lands L) and the recesses (grooves G) are used as recording regions etc., wherein wobble W for providing clock information or address information is formed, between a pair of facing side walls forming each trench15a, in a side wall portion at an inner circumferential side of the disk substrate15when seen from the recess (groove G) and at an outer circumferential side of the disk substrate15when seen from the projection (land L).
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Fujita Goro
Sakamoto Tetsuhiro
Dinh Tan
Sony Corporation
LandOfFree
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