Optical recording medium, sputtering target, and method for manufacturing the same
US8124211B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Dec 25, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To provide an optical recording medium including a substrate and over the substrate at least a recording layer that can record and reproduce with laser light in a blue wavelength region, wherein the recording layer includes Bi and O as main components, further includes at least any of C and N, and does not include Fe; or an optical recording medium including a substrate and over the substrate at least a recording layer that contains, as main components, Bi oxide, and a simple substance of each of one or more elements M (except Bi, C, and N) that enhance a light absorption function for a recording and reproducing laser light, wherein the optical recording medium can record and reproduce with laser light in a blue wavelength region, is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.