The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2019
Filed:
Nov. 18, 2015
Applicant:
Sony Corporation, Tokyo, JP;
Inventor:
Hiroshi Tabata, Miyagi, JP;
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2013.01); G11B 7/24038 (2013.01); C23C 14/34 (2006.01); G11B 7/2433 (2013.01); G11B 7/1387 (2012.01); C23C 14/06 (2006.01); G11B 7/243 (2013.01); G11B 7/0045 (2006.01); G11B 7/005 (2006.01); G11B 7/0055 (2006.01); G11B 7/254 (2013.01); G11B 7/257 (2013.01); G11B 7/258 (2013.01);
U.S. Cl.
CPC ...
G11B 7/24038 (2013.01); C23C 14/0623 (2013.01); C23C 14/3464 (2013.01); G11B 7/005 (2013.01); G11B 7/00454 (2013.01); G11B 7/00557 (2013.01); G11B 7/1387 (2013.01); G11B 7/243 (2013.01); G11B 7/2433 (2013.01); G11B 7/254 (2013.01); G11B 7/257 (2013.01); G11B 7/258 (2013.01); G06F 2211/007 (2013.01); G11B 2007/2431 (2013.01); G11B 2007/24304 (2013.01); G11B 2007/24312 (2013.01); G11B 2007/24314 (2013.01); G11B 2007/2571 (2013.01); G11B 2007/25706 (2013.01); G11B 2007/25713 (2013.01);
Abstract
An optical recording medium includes a reflective layer, a first dielectric layer, a phase-change recording layer, and a second dielectric layer. The phase-change recording layer has an average composition represented by SbxInyMz, in which M is at least one of Mo, Ge, Mn, and Al, and x, y, and z are values in the ranges 0.70≤x≤0.92, 0.05≤y≤0.20, and 0.03≤z≤0.10, respectively, provided that x+y+z=1, the first dielectric layer includes a zirconium oxide-containing composite material or tantalum oxide, and the second dielectric layer includes a chromium oxide-containing composite material or silicon nitride.