Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
US7037413B1 · kind B1 · utility
5Cited by
53References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2000 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Aug 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides an optical information medium having excellent weather resistance and repeating characteristics. The optical information medium has a barrier layer between a protective layer and a recording layer. The barrier layer includes GeN or GeON, and at least one element selected from the group consisting of Al, B, Ba, Bi, C, Ca, Ce, Cr, Dy, Eu, Ga, H, In, K, La, Mn, N, Nb, Ni, Pb, Pd, S, Si, Sb, Sn, Ta, Te, Ti, V, W, Yb, Zn and Zr.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.