Method of preparing perpendicularly oriented magnetic recording media
US4859495A · kind A · utility
14Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Mar 15, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of making a magnetic recording film having magnetic particles aligned in a given direction by subjecting an unfixed magnetic paint on a substrate to a rotating magnetic field having magnetic components only in a plane perpendicular to the given direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.