Optical information recording medium and optical disk drive

Details Optical information recording medium and optical disk drive Optical information recording medium and optical disk drive

2005-01-11

2005-01-11

Huber, Paul W. (Department: 2653)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S275100, C369S284000

Reexamination Certificate

active

06842419

ABSTRACT:
An optical information recording medium includes a substrate, first information recording layer, and second information recording layer. The first information recording layer includes a recording film, first dielectric film whose complex index has a real part n1, second dielectric film whose complex index has a real part n2, and third dielectric film whose complex index has a real part n3. Relationships n1>n2and n3>n2are satisfied.

REFERENCES:
patent: 6240060 (2001-05-01), Kikitsu et al.
patent: 6751184 (2004-06-01), Kojima et al.
patent: 2000-322770 (2000-11-01), None
patent: 2001-243655 (2001-09-01), None
patent: 2002-230828 (2002-08-01), None
Akiyama, et al., “Rewritable Dual-Layer Phase-Change Optical Disk Utilizing Blue-Violet Laser”, Optical Disk Systems Development Center, pp. 16-17.
Japanese Patent Office Action dated Mar. 2, 2004.

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