Laser-assisted in-situ fractionated lubricant and a new process for surface of magnetic recording media
US6468596B1 · kind B1 · utility
3Cited by
32References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | May 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/8408
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium is formed with enhanced tribological performance by applying a raw, unfractionated lubricant having a wide molecular weight distribution over a disk surface and treating the deposited lubricant with a laser light beam to effect in-situ fractionation of the lubricant to a very narrow molecular weight distribution. Embodiments of the present invention also include laser treating a deposited lubricant to increase the thickness of the bonded lube layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.