Patent · US Expired

Planar recording head having formed yokes

US6008969A · kind A · utility

9Cited by
1References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 18, 1997
Grant dateDec 28, 1999
Priority date
Expiry dateDec 18, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B5/3163
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A planar thin film magnetic head comprises an insulating substrate, a pair of insulating pedestals formed on the substrate, a top magnetic yoke having a central portion disposed over the substrate and having opposite ends supported on each of the pedestals. A conductor is provided over the top yoke central portion, and an insulating layer is disposed between the conductor and the top magnetic yoke. A bottom magnetic yoke is disposed over the conductor and has a gap in a central portion and opposite ends in contact with the top yoke ends.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.