Magnetic head having a laminated structure
US4901179A · kind A · utility
21Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1988 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Feb 23, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/1475
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Tape contact surface of a magnetic head is made of magnetic substance of multi-layered structure; interface insulation material for said multi layered structure and/or gap spacer material are made of oxides, complex oxides, nitrides and carbides of transition metal elements, IIa group elements of the periodic table and Zn; and accumulation of magnetic material from magnetic tape is prevented and output of magnetic head is stabilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.