Patent ID: 7859790
Filing Date: 2010-12-28
Classification: G11B

Abstract:
1. A transducer for recording information on a perpendicular recording medium, the transducer comprising: a body having a leading end, a trailing end, and a medium-facing surface; a first soft magnetic layer disposed in the body and terminating at a first pole tip disposed adjacent to the medium-facing surface; a second soft magnetic layer that is magnetically coupled to the first soft magnetic layer in a part of the body distal to the medium-facing surface, the second soft magnetic layer terminating at a second pole tip disposed adjacent to the medium-facing surface, the second pole tip having a leading edge and a trailing edge, such that the leading edge is closer than the trailing edge to the leading end, and the trailing edge protrudes toward the medium, compared to the leading edge; and a nonmagnetic layer that adjoins the trailing edge and does not coat the medium-facing surface.