Perpendicular magnetic recording head
US8270111B2 · kind B2 · utility
2Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2006 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Jul 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention provide a perpendicular magnetic recording head that causes the difference between a physical track width and an effective track width to be small. Sides of a main pole are made concave with the concave vertex on each side located close to a trailing edge of the main pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.