Method for manufacturing magnetic head
US5227193A · kind A · utility
12Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Oct 2, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49055
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for manufacturing a magnetic head of a metal-in-gap type in which a soft magnetic film is provided in a gap of a ferrite core comprising the steps of: forming a first layer comprising a metallic magnetic film containing nitrogen on magnetic ferrite; forming a second layer comprising a metallic magnetic film containing nitrogen in an amount less than said first layer; and forming a third layer comprising a metallic magnetic film containing nitrogen in an amount more than said second layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.