Patents Represented by Attorney, Agent or Law Firm Ervin P. Johnston
  • Antiparallel (AP) pinned spin valve sensor with specular reflection of conduction electrons
    Patent number: 6181534
    Abstract: First and second specular reflector layers, which interface one another, are employed in a spin valve sensor with the first specular reflector layer located between a free layer and the second specular reflector layer. The first specular reflector layer is preferably copper (Cu) and the second specular reflector layer is preferably nickel oxide (NiO).
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: January 30, 2001
    Assignee: International Business Machines Corporation
    Inventor: Hardayal Singh Gill