Adjustable permanent magnet bias
US6724583B2 · kind B2 · utility
22Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jul 15, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/934
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A read head, particularly suitable for a magnetic disc storage system, includes a read sensor having an air-bearing surface and an opposing top surface. The read head also includes a permanent magnet positioned adjacent the top surface of the read sensor for generating a magnetic bias field in the read sensor. The permanent magnet has a magnetization in a direction other than normal to the air-bearing surface of the read sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.