Magnetoresistive shield with lateral sub-magnets
US8472147B2 · kind B2 · utility
13Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2011 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Sep 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F10/3254
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic shield for a magnetoresistive (MR) reader has one or more lateral hard magnets and a ferromagnetic shielding layer with at least one hard sub-magnet in a lateral notch in the shielding layer. The notch allows the shielding layer to contact the sub-magnet on surfaces along multiple normal planes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.