Patent · US Expired

Magnetic disk recording and reproducing apparatus

US5847899A · kind A · utility

4Cited by
14References
28Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 6, 1997
Grant dateDec 8, 1998
Priority date
Expiry dateJan 6, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B33/1493
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A thin film magnetic head includes a slider and thin film magnetic transducers, the slider supporting the thin film magnetic transducers. At least one of these thin film magnetic transducers is a magnetoresistive read element. The surface resistivity .rho. of the magnetic film of the magnetic disk is within the range of .rho..gtoreq.0.03.OMEGA..multidot.cm. Electric leak from the thin film magnetic head to the magnetic disk and electric discharge between these two are prevented.

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