Optical recording medium IR-ray absorptive compound and optical recording medium by use thereof
US4923390A · kind A · utility
17Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1988 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Aug 2, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium comprises at least one of polymethine type dyes represented by the formulae [1-I] through [2-IV] shown below, and a compound selected from an aminium salt compound and a diimonium salt compound in a recording layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.