Method for making a multitrack head
US5093980A · kind A · utility
30Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1990 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Jun 15, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4906
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of making a multitrack head consisting in making a first network of grooves in a block of ferrite, filling the grooves with glass, planing down the surface, making a second network of grooves in a second block of ferrite, bonding these two blocks, trueing the base of the first block, depositing poles and making the winding wires go through.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.