Magnetic head for perpendicular magnetic recording including a coil having an inclined front end face
US9230568B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2015 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head includes a coil, a main pole, a trailing shield, a gap section, a return path section, and a coil underlayer. The main pole has a top surface including a first inclined portion and a flat portion. The coil includes a specific coil element. The specific coil element has a bottom surface facing toward the top surface of the main pole, and a front end face inclined with respect to a medium facing surface. The coil underlayer lies under the specific coil element, and has a front end face. The trailing shield includes a portion interposed between the front end face of the coil underlayer and the medium facing surface. The bottom surface of the specific coil element includes a second inclined portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.