Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2007-09-18
2007-09-18
Korzuch, William (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
C360S077020, C360S097020, C360S098010
Reexamination Certificate
active
11191446
ABSTRACT:
Embodiments of the invention provide a disk device capable of writing highly accurate servo data using an extremely simple technique, and a manufacturing method therefor. According to one embodiment, a method for manufacturing a disk device includes: mounting a magnetic disk and each assembly for driving the magnetic disk, such as an SPM and a VCM, in a base and attaching a top cover so as to seal the enclosure (made up of the base and the top cover) with each assembly of the HDD therein; replacing the air within the hard disk assembly (HDA) with a gas having a lower density than air, such as He; writing servo data to the magnetic disk in a self servo track write operation; and replacing the gas within the HDA with air.
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Fukuyama Hiroshi
Ishiwata Kensuke
Nakao Kanji
Takeda Kazuya
Washizu Kazuhiko
Henkhaus John
Hitachi Global Storage Technologies - Netherlands B.V.
Korzuch William
Olson Jason
Townsend and Townsend / and Crew LLP
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