Layer for reducing magnetic field proximate a near-field transducer
US9786303B1 · kind B1 · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2016 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Jul 7, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus comprises a magnetic pole and a near-field transducer positioned at or near a media-facing surface and is separated from the magnetic pole, the near-field transducer configured to generate a thermal spot. The apparatus further comprises a layer proximate the magnetic pole and the near-field transducer, and the layer is configured to reduce a magnetic field proximate a center of the thermal spot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.