Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2008-11-21
2010-10-05
Nguyen, Hoa T (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
07808741
ABSTRACT:
Embodiments of the present invention help to adjust the recess depth of a head element portion of a head slider. In an embodiment of the present invention, in a test step in manufacturing an HDD, the HDD examines the recess depth of a head element portion and decreases and adjusts the recess depth if the recess depth of the head element portion does not satisfy the predetermined condition. The HDD moves an actuator to a ramp of a retract position and supplies power to a heater in a head slider. If the heater power is large, the head element portion undergoes plastic deformation. The plastic deformation of the head element portion decreases the recess depth of the head element portion.
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Ishikawa Masayuki
Kitaizumi Futoshi
Matsumoto Tsuyoshi
Tanaka Hidetsugu
Yamamoto Yoshio
Brokaw Christopher J.
Habermehl James L
Hitachi Global Storage Technologies - Netherlands B.V.
Mahamedi Paradice Kreisman LLP
Nguyen Hoa T
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