×

Magnetic flux barrier

  • US 9,171,555 B2
  • Filed: 02/06/2015
  • Issued: 10/27/2015
  • Est. Priority Date: 09/10/2010
  • Status: Active Grant
First Claim
Patent Images

1. A data storage system writing element comprising:

  • an air bearing surface; and

    a shield at the air bearing surface, the shield having multiple layers and a magnetic permeability of approximately zero, wherein the multiple layers include at least one layer having a positive magnetic permeability and at least one layer having a negative magnetic permeability.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×