Oliff & Berridge, PLC
Magnetic head for perpendicular magnetic recording having a main pole and a shield
A main pole has a top surface and a bottom end that each include first, second, and third portions arranged contiguously in this order of increasing distance from a medium facing surface. A first virtual plane and a second virtual plane are assumed. The first virtual plane passes through an end of an end face of the main pole located forward in the direction of travel of a recording medium and is perpendicular to the medium facing surface and to the direction of travel of the recording medium. The second virtual plane passes through an end of the end face of the main pole located backward in the direction of travel of the recording medium and is perpendicular to the medium facing surface and to the direction of travel of the recording medium. The first and third portions are inclined relative to the first and second virtual planes and the medium facing surface. The second portion is parallel to the first and second virtual planes.
SAE Magnetics (H.K.) Ltd. Headway Technologies, Inc.
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Hiroyuki Yoshitaka Shigeki Kazuki Hironori Atsushi
Ito Sasaki Tanemura Sato Araki Iijima