Coil for thin-film magnetic head with inductive write head element
US6980396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2003 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Oct 22, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin-film magnetic head includes an insulation gap, first and second yoke layers with first and second ends, respectively, the first ends constituting magnetic poles separated from each other by the insulation gap, the second ends being magnetically coupled with each other, and a coil conductor constituted by a plurality of single layer turns, for generating magnetic field and applying the generated magnetic field into the first and second yoke layers. Each turn of the coil conductor includes a first section, a second section with one end coupled with one end of the first section, and a third section with one end coupled with the other end of the second section. The third section travels to pass outside of the first yoke layer in parallel with the surface of the first yoke layer, and to extend over the first yoke layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.