Invention Grant
- Patent Title: Magnetic head for perpendicular magnetic recording having a tapered main pole
- Patent Title (中): 磁头用于具有锥形主极的垂直磁记录
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Application No.: US12964202Application Date: 2010-12-09
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Publication No.: US08477452B2Publication Date: 2013-07-02
- Inventor: Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Atsushi Iijima
- Applicant: Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Atsushi Iijima
- Applicant Address: US CA Milpitas CN Hong Kong
- Assignee: Headway Technologies, Inc.,SAE Magnetics (H.K.) Ltd.
- Current Assignee: Headway Technologies, Inc.,SAE Magnetics (H.K.) Ltd.
- Current Assignee Address: US CA Milpitas CN Hong Kong
- Agency: Oliff & Berridge, PLC
- Main IPC: G11B5/127
- IPC: G11B5/127

Abstract:
A bottom end of a main pole includes first, second, and third portions that are contiguously arranged in order of increasing distance from the medium facing surface. A top surface of the main pole includes fourth, fifth, and sixth portions that are contiguously arranged in order of increasing distance from the medium facing surface. A distance from the top surface of the substrate to any given point on each of the first and second portions decreases with increasing distance from the given point to the medium facing surface. The second portion has an angle of inclination greater than that of the first portion with respect to a direction perpendicular to the medium facing surface. A distance from the top surface of the substrate to any given point on each of the fourth and fifth portions increases with increasing distance from the given point to the medium facing surface. The fifth portion has an angle of inclination greater than that of the fourth portion with respect to the direction perpendicular to the medium facing surface.
Public/Granted literature
- US20120147500A1 MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING HAVING A TAPERED MAIN POLE Public/Granted day:2012-06-14
Information query
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