Thermally-assisted magnetic recording head including a heat sink
US9218835B1 · kind B1 · utility
10Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2014 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Sep 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thermally-assisted magnetic recording head includes a main pole and a heat sink. The heat sink includes two first portions and two second portions. The two first portions are located on opposite sides of the main pole in the track width direction and are each spaced from the main pole. The two second portions are located between the main pole and the two first portions. The main pole and the two first portions are each formed of a magnetic metal. The two second portions are formed of a nonmagnetic metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.