Thermally-assisted magnetic recording head having photoelectric wiring lines integrally formed on waveguide
US8542559B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2009 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Sep 6, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information recording and reproduction apparatus has a magnetic recording medium and a carriage that undergoes rotational movement about a pivot shaft and has a base portion and an arm portion extending from the base portion and along a surface of the medium. A light source that emits a light beam to heat the medium is mounted on the base portion and is disposed closer to the pivot shaft than the arm portion. The arm portion supports a slider confronting the surface of the medium and being configured to receive a light beam from the light source. The slider has an optical system which condenses the light beam and a spot light generating element which generates from the condensed light beam spot light that heats the medium for recording information on the medium while causing magnetization reversal by applying a recording magnetic field to the medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.