Magnetic head with spin oscillation device(s) and magnetic recording device
US8270112B2 · kind B2 · utility
64Cited by
46References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2008 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Apr 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
It is made possible to provide a magnetic head that generates a sufficient high-frequency magnetic field for assisting recording operations, and a magnetic recording device that includes the magnetic head. A magnetic head includes: a recording magnetic pole; a return yoke magnetically coupled to the recording magnetic pole; and at least two spin torque oscillators provided near the recording magnetic pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.