Impact resistant magnetic disk device and method for manufacturing impact resistant magnetic disk device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12205616
APP PUB NO 20240170017A1
SERIAL NO

18547621

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Importance

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Abstract

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A magnetic disk device includes a plurality of disk-shaped magnetic disks, a spacer, a hub, and a clamp. Each of the magnetic disks includes a through-hole in a center section thereof. The spacer is disposed among the magnetic disks, and includes a through-hole in a center section thereof. The hub is inserted into the through-holes of the magnetic disks and the spacers. The clamp presses and holds the magnetic disks and the spacer. At surfaces where the magnetic disks and the spacer or the clamp contact, a flat surface height of an upper surface of at least one magnetic disk that contacts an outer circumference of the spacer or the clamp is lower than a flat surface height of the upper surface of at least one magnetic disk of the magnetic disks that contacts an inner circumference of the spacer or the clamp.

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Patent Owner(s)

Patent OwnerAddress
UACJ CORPORATIONTOKYO
FURUKAWA ELECTRIC CO LTDTOKYO 100

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hatakeyama, Hideyuki Tokyo, JP 51 226
Kitawaki, Kotaro Tokyo, JP 38 97
Todo, Shinpei Tokyo, JP 10 27
Yamada, Ryohei Tokyo, JP 25 46

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