Recording medium having a track and electrode layer provided and recording and reproducing device and system using same
US5396483A · kind A · utility
44Cited by
11References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1992 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Nov 18, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/947
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording medium is prepared by irradiating an electron beam on a substrate following a certain pattern, then vapor depositing a metal onto the substrate to form a track comprising ultra-fine particles of the metal, further providing a metal layer on the substrate, and providing a recording layer on the metal layer. Recording is effected on a track having a preferable width of 40 .ANG. to 400 .ANG. formed on the recording surface of the medium by applying a pulse voltage or current between the medium and a probe arranged approximate thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.