Magnetic recording device and magnetic recording method thereof
US8018672B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2009 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Dec 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording device according to one embodiment includes a magnetic recording medium having a magnetic recording layer; a recording element positioned on a head slider; an assistance element for supplying assistance energy to an area on the recording layer to which a recording magnetic field generated by the recording element is applied, the assistance element being positioned on the head slider; and a controller for controlling a size of an assistance area from the assistance element in accordance with a position of the head slider in a radial direction of the magnetic recording medium. Additional systems and methods are also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.