Magnetic head core arrangement having medium facing surface sides formed of single-crystal ferrite
US5515222A · kind A · utility
13Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Apr 29, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/133
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic head having a pair of magnetic cores defining a magnetic gap in-between, a side of each magnetic core facing a recording medium is formed of a single-crystal ferrite, with the remaining portions of each magnetic core being formed of poly-crystal ferrite. The surface of the magnetic core facing the recording medium and the abutment surface of the magnetic core are the {100} plane and the {100} plane of the single-crystal ferrite, respectively. The magnetic head has excellent abrasion resistance and electro-magnetic conversion characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.