Magnetic recording head with a point writer pole
US7583477B2 · kind B2 · utility
0Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2003 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | May 12, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49048
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording head having a write pole formed in a point. The narrow width of the write pole can be manufactured using existing equipment, reduces the number of steps required to build the recording head, and results in a recording head that has other advantages. Forming the write pole in a point is done using two masking steps and mill processing. The writer and reader are positioned next to each other so that the second masking step which forms the point of the writer pole also defines the back edge of the stripe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.