Magnetic recording head and disk device comprising the same
US9747932B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2016 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Sep 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a magnetic recording head includes an air bearing surface, a magnetic core including a main magnetic pole and a write shield arranged to face the main magnetic pole with a write gap, a coil, and a high-frequency oscillator provided between the main magnetic pole and the write shield in the write gap. The magnetic core includes an opposite surface facing a film surface of the high-frequency oscillator, a magnetic layer, and a nonmagnetic layer in which magnetic microparticles are dispersed. The nonmagnetic layer is provided outside the magnetic layer in at least a part of the opposite surface of the magnetic core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.