Method for manufacturing magnetic recording medium
US6194025A · kind A · utility
1Cited by
0References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2000 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Jan 28, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D3/0486
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A lubricant film is formed on the surface of a substrate of a magnetic recording medium. The substrate consists of a non-magnetic base layer, a magnetic layer and a protective film, in that order. The substrate is immersed in a lubricant solution in a sealed container. The sealed container is pressurized with an inert gas introduced in the sealed container. The lubricant solution is then discharged, thereby forming a lubricant film on the surface of the protective film. Lubricant film thickness is varied by controlling a discharge rate, either by controlling the gas pressure, or the outflow rate of the lubricant solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.