Oliff & Berridge, PLC
Magnetic head for perpendicular magnetic recording having a main pole and a shield
A main pole has a top surface including a first portion and a second portion. The main pole has a bottom end including a third portion and a fourth portion. Each of the first and third portions has a first end located in a medium facing surface. The first portion is inclined relative to the medium facing surface and a first virtual plane that passes through the first end and is perpendicular to the medium facing surface and to the direction of travel of a recording medium. The third portion is inclined relative to the medium facing surface and a second virtual plane that passes through the first end and is perpendicular to the medium facing surface and to the direction of travel of the recording medium. The first portion is smaller than the third portion in length in a direction perpendicular to the medium facing surface.
Headway Technologies, Inc. Sae Magnetics (H.K.) Ltd.
G G G G
G11B G11B G11B G11B
inventional inventional inventional inventional
Hironori Hiroyuki Shigeki Atsushi Yoshitaka Kazuki
Araki Ito Tanemura Iijima Sasaki Sato