Magnetic recording device with improved reliability
US6643093B2 · kind B2 · utility
10Cited by
13References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Apr 12, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/028
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The magnetic surfaces of the magnetoresistive or magnetic tunnel junction and inductive write head and magnetic recording disk of a hard disk drive are protected from corrosion by inserting a vapor phase corrosion inhibitor (VPCI) package into the disk drive for providing additives in the vapor phase of the disk drive enclosure to maintain an equilibrium and renewable adsorbed film of metal passivators on the head and disk surfaces. The VPCI package includes at least one vapor phase corrosion inhibitor (VPCI) embedded in a polymeric matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.