Thin film magnetic head
US6151193A · kind A · utility
40Cited by
19References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1998 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Apr 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A first pole tip 212 at a write element 2 is provided projecting above a first yoke 211. A second pole tip 222 is adhered onto a gap film 23 that is adhered onto the first pole tip 212. The front end portion of a second yoke 221 is laminated on the second pole tip 222. At least either the first pole tip 212 or the second pole tip 222 is constituted of a material having a higher saturation magnetic flux density than that of permalloy. At least either the first yoke 211 or the second yoke 221 is constituted of a material having a higher resistivity than that of permalloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.