Magnetic head with spin torque oscillator and magnetic recording head
US8654480B2 · kind B2 · utility
15Cited by
69References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2012 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Jul 10, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1171
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An example magnetic head includes a recording pole to generate a recording magnetic field, a spin torque oscillator formed in the vicinity of the recording magnetic pole and a hard bias film provided at both end portions of a bias layer and an oscillation layer of spin torque oscillator. The hard bias film is configured to apply a magnetic field to the bias layer and the oscillation layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.