Device for reading and writing on a magnetic medium
US4992897A · kind A · utility
43Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Apr 13, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3183
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for reading and writing of information on a magnetic medium such as a disk or tape comprises at least one reading and writing head placed on a base having a catamaran type profile. The head is composed of a magnetic circuit (a winding on a medium) self-positioned and welded to the walls of a hole made in the base, a flow concentrator in contact with the extremities of the magnetic circuit and a pole piece made up of two magnetic parts separated by a magnetic spacer. The pole piece is positioned opposite to the track of the magnetic medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.