Recessed write pole for perpendicular recording
US7532434B1 · kind B1 · utility
29Cited by
14References
56Claims
0Family size
Inventors
Key dates
| Filing date | Sep 6, 2002 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive having a head with a recessed write pole for perpendicular recording to a disk. The head also includes a read element, a first shield and a second shield that share a common plane, and the write pole is recessed relative to the plane, thereby reducing pole tip protrusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.