Magnetic transducer with debris guiding channels having non-vertical sloping walls formed in a tape bearing surface
US6191919A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1999 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Jan 6, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/502
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head having a pair of longitudinal channels in a tape bearing surface that flank each transducer. The channels reduce the effective height of debris in the channels near the transducers. The channel floors may have a transverse slope, and the tape bearing surface between channels may be tapered. Transverse slots help direct debris away from the transducers. The channels overlap the end sections of the transducers and help to define the shape and position of the transducer's active section. When applied to a two pole write transducers, the channels narrow and equalize the effective width of the top and bottom poles. Narrow equal-sized poles can write narrow data tracks with a track width that is independent of the magnetic medium's direction of motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.