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US 7,068,475 B2Granted
Magnetic head having a flux-guide regulating film regulating a magnetic domain of a flux guide
AssigneeFujitsu Limited
InventorsReiko Kondo, Yutaka Shimizu, Atsushi Tanaka
Life of this patent
Estimating the term…
Abstract
A magnetic head is provided. The magnetic head comprises a magnetoresistance film, a flux guide, and a flux-guide regulating film. The flux guide guides a signal magnetic field from a magnetic recording medium to the magnetoresistance film. The flux-guide regulating film aligns magnetic domains of the flux guide into a single magnetic domain.
Claims7
A magnetic head comprising:
- a magnetoresistance film;
- a flux guide guiding a signal magnetic field from a magnetic recording medium through said magnetoresistance film, wherein said signal magnetic field in said flux guide is in the same general direction as said signal magnetic field of said magnetoresistance film, wherein a part of a surface of the magnetoresistance film overlaps and contacts a part of a surface of the flux guide, and wherein the surface of the magnetoresistance film is not an edge of the magnetoresistance film and the surface of the flux guide is not an edge of the flux guide;
- and
- a flux-guide regulating film aligning magnetic domains of said flux guide into a single magnetic domain.
1 more element
A magnetic reproducing device comprising:
- a magnetic head including:
- a magnetoresistance film;
- a flux guide guiding a signal magnetic field from a magnetic recording medium through said magnetoresistance film, wherein said signal magnetic field in said flux guide is in the same general direction as said signal magnetic field of said magnetoresistance film, a part of a surface of the magnetoresistance film overlaps and contacts a part of a surface of the flux guide, and the surface of the magnetoresistance film is not an edge of the magnetoresistance film and the surface of the flux guide is not an edge of the flux guide;
- and
- a flux-guide regulating film aligning magnetic domains of said flux guide into a single magnetic domain.
2 more elements
Dependencies are inferred from the claim text.