Resources Contact Us Home
GMR spin-valve element evaluation method, magnetic head manufacturing method, and magnetic storage device

Image Number 9 for United States Patent #7525771.

A method for evaluating a magnetized state of a pinned layer of a magnetoresistive spin-valve element used, together with a recording element, in a magnetic head, is provided. The method includes the steps of (a) supplying a first alternating current to the recording element, while supplying a second current for generating a magnetic field to the spin-valve element, the direction of the magnetic field generated by the second current being opposite to a prescribed direction of magnetization of the pinned layer adjacent to an antiferromagnetic layer; and (b) determining whether the magnetization of the pinned layer is inverted toward said direction opposite to the prescribed direction.

  Recently Added Patents
Method and assembly for determining the temperature of a test sensor
Compounds for the reduction of .beta.-amyloid production
Flat panel crystal display employing simultaneous charging of main and subsidiary pixel electrodes
Methods for non-linear image blending, adjustment and display
Silicas and alkali metal salt compositions, detergents formed from such compositions and method of forming such compositions and detergents
Electro-optical device, method of manufacturing the same, and electronic apparatus
Reading apparatus and reading method
  Randomly Featured Patents
Dual USB active vehicle power adapter plug with capture
Sealing device
Venturi inducer system for transferring material
Swimming aid
Method for fabrication of abrupt drain and source extensions for a field effect transistor
Photothermographic element and process comprising an ammonia or amine responsive imaging material
Exercise grip device
Method of searching paths suffering from the electrostatic discharge in the process of an integrated circuit design
Cardiomyocyte production