Optical information recording medium and method for...

Details Optical information recording medium and method for... Optical information recording medium and method for...

2006-03-21

2006-03-21

Mulvaney, Elizabeth (Department: 1774)

Stock material or miscellaneous articles

Circular sheet or circular blank

C428S064400, C428S064500, C428S064600, C430S270130

Reexamination Certificate

active

07014904

ABSTRACT:
An optical information recording medium of the invention has at least two information layers. A first information layer (100) disposed at the front side (viewed from a laser incident side) includes at least a reflection layer (3), a recording layer (6) disposed at the laser incident side with respect to the reflection layer (3), for generating a reversible change between an amorphous phase and a crystalline phase that can be detected optically by applying a laser beam, and a dielectric layer (50) disposed between the reflection layer (3) and the recording layer (6). The dielectric layer (50) contains at least Zr, Si and Cr, a ratio of Zr, Si and Cr of the dielectric layer (50) at the reflection layer side is expressed as Zr:Si:Cr=p:q:r (p+q+r=100), a ratio of Zr, Si and Cr of the dielectric layer (50) in the vicinity of the interface at the recording layer side is expressed as Zr:Si:Cr=s:t:u (s+t+u=100), and r<u or t<q.

REFERENCES:
patent: 5492794 (1996-02-01), Kawanishi et al.
patent: 5652036 (1997-07-01), Kobayashi
patent: 6761950 (2004-07-01), Kojima et al.
patent: 6841217 (2005-01-01), Nishihara et al.
patent: 6858278 (2005-02-01), Kojima et al.
patent: 6881466 (2005-04-01), Kojima et al.
patent: 2001/0016242 (2001-08-01), Miyamoto et al.
patent: 2001/0023006 (2001-09-01), Miyamoto et al.
patent: 2000-36130 (2000-02-01), None
patent: 2003-85824 (2003-03-01), None

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