Patent · US Expired

Multilayered ferromagnetic amorphous alloy film and magnetic head employing the same

US4748089A · kind A · utility

20Cited by
8References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 13, 1984
Grant dateMay 31, 1988
Priority date
Expiry dateDec 13, 2004

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/12951
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A multilayered ferromagnetic amorphous alloy film is constituted by a plurality of main ferromagnetic material alloy films of a ferromagnetic amorphous alloy laminated one upon another with a spacer ferromagnetic material layer interposed therebetween, the spacer ferromagnetic material layer being of a ferromagnetic material different from the ferromagnetic alloy. Also disclosed is a magnetic head employing the above-described multilayered film for, at least, a portion of a core thereof. The multilayered film has excellent magnetic characteristics and is easily patterned.

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