Magnetic head with magnetic substrate and an enhanced poletip thereon
US5296993A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1993 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Mar 10, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49044
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An interleaved bi-directional magnetic tape head for contact recording can have a poletip enhanced by providing a thin film of a soft magnetic material deposited onto a magnetic ferrite substrate. The second pole piece is a thin film of the soft magnetic material. A closure block of a non-magnetic ceramic encloses the layers together with leveling insulation layers and a deposited activating conductor turns. The stripe poletip deposited onto the magnetic ferrite extends for a distance just short of the first conductor turn and provides a balancing of the saturation moment of the pole pieces and provides for better recording capability, especially when operating in a trailing magnetic ferrite mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.