Method of making magnetic recording medium
US4567057A · kind A · utility
5Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1984 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Sep 26, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/845
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic coating composition comprising a binder dissolved in a solvent and magnetic grains dispersed therein is applied onto a surface of a non-magnetic substrate continuously moved. The coating film thus overlaid on the non-magnetic substrate is subjected to a preliminary orientation step for orientating the magnetic grains in the coating film, and then to a preliminary drying step. A final orientation step is then conducted while intermediate drying is carried out. Thereafter, final drying is effected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.