Optical recording medium
US5026623A · kind A · utility
10Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1990 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Jun 4, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium for performing writing and reading on a pit by use of a light of beam comprises an optical recording layer comprising a porous layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.