Systems and methods for providing magnetic recording heads adapted for writing shingled tracks
US8264798B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2010 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Sep 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording head including a write pole and a shield. The write pole has a pole tip face that is parallel to the air bearing surface of the magnetic recording head, a leading surface having a leading edge at the pole face, a first side surface having a first side edge at the pole face, a second side surface having a second side edge at the pole face, and a trailing surface having a trailing edge at the pole face. The shield surrounds the first side surface, the trailing surface, and the second side surface of the write pole tip, and is separated from the first side surface of the write pole tip by a first side gap, from the trailing surface of the write pole tip by a trailing gap, and from the second side surface of the write pole tip by a second side gap. There is a notch formed in the inner wall of the shield adjacent to the corner of the write pole tip formed by one side surface and the trailing surface of the write pole tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.