Straight top main pole for PMR bevel writer
US8254060B1 · kind B1 · utility
158Cited by
51References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Nov 17, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49052
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording head includes a write pole comprising a throat region. The throat region includes a lower portion having a substantially trapezoidal cross-section, and an upper portion having a substantially rectangular cross-section. In a beveled region of the write pole, the substantially rectangular cross-section of the upper portion decreases in height towards an air bearing surface of the magnetic recording head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.