Patent · US Expired

Magnetic head producing method

US6851179B2 · kind B2 · utility

0Cited by
4References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 19, 2000
Grant dateFeb 8, 2005
Priority date
Expiry dateSep 28, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/4906
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

The present invention provides a method for producing a magnetic head whose reproduction waveform has small distortions, and forming a hard magnetism layer for applying a bias magnetic field to a magnetoresistive element, which is a multilayer film including a fixed magnetic layer having magnetization fixed to a first direction and a free magnetic layer having an easy axis of magnetization that is directed to a second direction, is formed in an area including at least one of a front area in the first direction and a rear area in the first direction.

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