Write pole with varied sidewall shape
US10643644B1 · kind B1 · utility
1Cited by
17References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2018 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Feb 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A write head having a write pole tip. The write pole tip includes a bearing surface and a sidewall extending from the bearing surface to a rear end of the write pole tip. The sidewall has a first shape (e.g., a straight-line sidewall shape) substantially at the bearing surface and a second shape (e.g., a multi-segment sidewall shape or a curved sidewall shape) between the bearing surface and the rear end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.