Optical information recording medium, method of recording information and azo metal complex dye
US8808824B2 · kind B2 · utility
0Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2009 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Oct 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/24612
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An aspect of the present invention relates to an optical information recording medium comprising a recording layer on a surface of a support, wherein the surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye being a complex of six azo dyes and seven transition metal ions. A further aspect of the present invention relates to a method of recording information onto the optical information recording medium and a novel azo metal complex dye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.