Patent · US Expired

Manufacturing method for magnetic head

US5867887A · kind A · utility

2Cited by
6References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 12, 1996
Grant dateFeb 9, 1999
Priority date
Expiry dateNov 12, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/49057
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A method of manufacturing a magnetic head by bonding a pair of magnetic cores to each other, wherein a residual stress in the magnetic cores upon bonding them together is controlled so that a permeability of the magnetic cores in the vicinity of a magnetic recording medium sliding surface of the magnetic cores may become maximum. Accordingly, the residual stress in the magnetic cores is controlled so that the permeability of the magnetic cores may surely become maximum after forming the magnetic head, thereby ensuring a superior reproduction efficiency of the magnetic head.

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