High magnetic moment thin film head core
US5372698A · kind A · utility
20Cited by
15References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1992 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Sep 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49034
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin film magnetic read/write head has a copper iron boron core. Cobalt, iron and boron are included in the electroplating bath used to form the pole pieces of the thin film magnetic head. Following exposure to a rotating magnetic field, the pole pieces have high saturation magnetization, low coercivity, low anisotropy and large permeability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.