Optical data storage and recording media having recording surface protection
US4543307A · kind A · utility
4Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1984 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Feb 17, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24612
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for protecting the recording surfaces of optical data storage and recording tape provides the tape edges with protuberances formed by plastic coatings, embossments or thickness gradients of the recording material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.