Ultra-short yoke length writer
US9349390B1 · kind B1 · utility
0Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2013 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Oct 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system provide a magnetic transducer having an air-bearing surface (ABS). The magnetic transducer includes a main pole having a pole tip, at least one auxiliary pole and at least one coil for energizing the main pole. The auxiliary pole(s) are adjacent to the main pole in a down track direction and recessed from the ABS. The coil(s) have a plurality of turns. At least one of the turns is between the auxiliary pole(s) and the ABS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.