Transverse biased shields for perpendicular recording to reduce stray field sensitivity
US6995950B2 · kind B2 · utility
9Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2001 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | May 31, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0029
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for reducing flux concentrating capacity of a shield in a magnetic read/write head positioned to read perpendicular residual magnetic fields on a magnetic media. Permeability of the shield is reduced in a direction oriented perpendicular to the magnetic media by inducing a transverse magnetic bias field within the shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.