Thin film magnetic head, head gimbals assembly, head arm assembly, and magnetic disk unit
US9792932B2 · kind B2 · utility
0Cited by
10References
12Claims
0Family size
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Key dates
| Filing date | Mar 7, 2016 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Mar 7, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3136
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This thin film magnetic head includes: a magnetic pole including a first end surface exposed on an air bearing surface; a coil configured to provide a magnetic flux passing through inside of the magnetic pole; and a heatsink including a second end surface that is provided at a position recessed from the air bearing surface. The second end surface is configured to suppress reflection causing light that has traveled through an entering position on the air bearing surface to return to the entering position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.