Optical information storage medium and method for manufacturing the same
US7163730B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 12, 2004 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Jan 20, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/24324
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical information storage medium includes a first substrate, a first recording layer, a first reflective layer, a spacer layer, a second recording layer, a second reflective layer, and a second substrate. In this case, the first recording layer is disposed above the first substrate. The first reflective layer is disposed above the first recording layer. The spacer layer is disposed above the first reflective layer. The second recording layer is disposed above the spacer layer, and the second recording layer is made of an inorganic material. The second reflective layer is disposed above the second recording layer. The second substrate is disposed above the second reflective layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.