Magnetic recording medium and method of preparing the same
US4247593A · kind A · utility
5Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1977 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Jun 21, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium is produced using a highly purified lecithin which is selectively adsorbed upon magnetic powder particles so as to coat substantially the entire surface of such particles with a monomolecular layer, thereby providing a magnetic record medium of improved magnetic properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.