Optical recording medium, manufacturing method thereof,...

Details Optical recording medium, manufacturing method thereof,... Optical recording medium, manufacturing method thereof,...

2007-02-13

2007-02-13

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Specified material

C369S275400, C369S283000, C428S064400

Reexamination Certificate

active

10481518

ABSTRACT:
An optical recording medium, with a construction and a manufacturing method thereof corresponding to those of a read-only optical recording medium and which can be manufactured inexpensively, which enables additional recording of the above-described codes, marks, and other new information, which can be recorded reliably and has satisfactory characteristics, is provided. A construction is adopted in which the optical recording medium S has an information layer2including a portion in which information is recorded by physical shape changes in, at least, the thickness direction or the track width direction, and which comprises a reflective film3; the reflective film is formed of Al alloy or Cu alloy with an electrical resistivity of 20 μΩ·cm or more and 90 μΩ·cm or less, and information can be additionally recorded on the reflective film3by thermal recording.

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International Search Report dated Aug. 26, 2003.

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