Method for treating a plurality of magnetic recording media with ultraviolet rays
US8598548B2 · kind B2 · utility
0Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2012 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Aug 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/8408
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for treating a plurality of magnetic recording media with ultraviolet radiation. Each of the magnetic recording media has a magnetic film, a protective film, and a lubricant film on a non-magnetic substrate. The method includes first irradiating all of the magnetic recording media with ultraviolet radiation and then irradiating a group of the magnetic recording media with ultraviolet radiation, which includes less than all of the magnetic recording media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.