Method and system for providing a perpendicular magnetic recording writer
US8179636B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Mar 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3116
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for providing a magnetic transducer for recording to media is described. The method and system include providing a first pole, a main pole, an auxiliary pole, and at least one coil. The main pole has a first media-facing surface including a recessed portion and a write portion. The auxiliary pole is magnetically coupled with the main pole and has a second media-facing surface. The second media-facing surface includes a first portion and a second portion. The first portion is in proximity to the write portion of the first media-facing surface of the main pole. The second portion is in proximity to and recessed from the recessed portion of the first media-facing surface of the main pole. The coil(s) are for energizing the main pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.