Optical recording medium
US4737443A · kind A · utility
6Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1986 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | May 5, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium in which recording and/or reproducing is made by the state changes of material owing to laser beams, comprising an indophenol-group dye supported on a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.