Method of manufacturing magnetic head
US5022140A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1990 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Mar 8, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49067
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic head a metal magnetic layer and a non-magnetic layer are sequentially formed on a pair of magnetic cores in which track widths are formed by a predetermined pitch. The metal magnetic layer and the non-magnetic layer formed outside the track widths are removed while leaving the track widths formed in said magnetic cores, thereby forming a regulation groove. The track widths of one magnetic core from which the metal magnetic layer and the non-magnetic layer are removed are caused to oppose those of the other magnetic core. Glass as an adhesive is filled in the regulation groove and melted to bond the magnetic cores so that a gap having the metal magnetic layer is formed. The pair of magnetic cores bonded to form the gap therebetween are cut by a predetermined pitch to form a magnetic head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.