Microwave assisted magnetic head
US8300346B2 · kind B2 · utility
7Cited by
0References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2010 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jul 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A gap between a main pole and auxiliary pole composing a thin film magnetic head having a microwave assisted function of the present invention is filled with a nonmagnetic dielectric layer to embed a microwave radiator. The nonmagnetic dielectric layer has an inclined surface at a end on a side of an opposing medium surface by which the microwave radiated from the microwave radiator to be bent toward the main pole, whereby the microwave magnetic field generated from the microwave generator can be gathered immediately below the main pole, further improving the microwave assisted effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.