Apparatus for differential zone lubrication of magnetic recording media and related methods
US6168831A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1998 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | May 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/82
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for producing dual-zone lubricated magnetic disks. An absorbent medium is held against a selected portion of the surface of a lubricated disk. The disk is rotated in relation to the absorbent medium, and the absorbent medium removes mobile lubricant from the selected portion of the disk, leaving bonded lubricant in addition to a selected amount of mobile lubricant. In an specific embodiment, an absorbent tape is supplied to a roller that holds the tape against a surface of the disk, and solvent is applied to the tape and/or disk to facilitate the removal of mobile lubricant. Differential lubricant thicknesses are thus obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.