Thin film magnetic head having grooves which become gradually shallower
US6040965A · kind A · utility
25Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1997 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Aug 27, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A slider is provided with air bearing surfaces and at the side that faces opposite the medium. Inductive thin film magnetic conversion elements are each provided with pole tips which emerge at the air bearing surfaces. The width of the pole tips in the direction of the tracks, which is perpendicular to the direction of the movement of the medium, is essentially defined by grooves formed at the air bearing surfaces. The grooves gradually become shallower along the direction of the movement of the medium until their bottom surfaces reach the level of the air bearing surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.