Phase-change optical information recording medium and...

Details Phase-change optical information recording medium and... Phase-change optical information recording medium and...

2006-05-23

2006-05-23

Mulvaney, Elizabeth (Department: 1774)

Stock material or miscellaneous articles

Circular sheet or circular blank

C428S064400, C428S064500, C430S270130

Reexamination Certificate

active

07048983

ABSTRACT:
A phase-change optical information recording medium in which information can be recorded, erased, and read includes a substrate and a recording layer overlying the substrate. The recording layer achieves a crystal phase and an amorphous phase. The absorptance Ac of the recording layer in the crystal phase against light having a wavelength of from 370 nm to 450 nm is lower than the absorptance Aa of the recording layer in the amorphous phase against the light. Information is recorded on the recording medium with a recording wavelength of from 370 nm to 450 nm at a recording pitch of 0.3 μm to 0.52 μm.

REFERENCES:
patent: 6416837 (2002-07-01), Kojima
patent: 6469977 (2002-10-01), Kitaura
patent: 6652948 (2003-11-01), Shinotsuka
patent: 6790504 (2004-09-01), Shinotsuka
patent: 2001/0005350 (2001-06-01), Kitaura
patent: 8124218 (1996-05-01), None
patent: 11039716 (1999-02-01), None

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