IP Library › Granted Patent US 7,167,338
Granted Patent B2
US 7,167,338 · App. 10/837,303 · Granted Jan 23, 2007

Magnetic disk apparatus

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Quick Facts
Patent No.
US 7,167,338
App. No.
10/837,303
Granted
Jan 23, 2007
Kind
B2
Abstract

A magnetic disk apparatus for reading and writing information to a magnetic disk including a motor for rotating the magnetic disk mounted thereon; a disk-shaped clamp for mounting the magnetic disk on the motor by screw fastening; and a C-shaped balancer for adjusting the rotary balance of the magnetic disk and mounted on the outer surrounding portion of the clamp, wherein the C-shaped balancer has a generally rectangular cross-section.

Claims (6)

1. A magnetic disk apparatus for reading and writing information to a magnetic disk comprising:

a motor for rotating the magnetic disk mounted thereon;

a disk-shaped clamp for mounting the magnetic disk on the motor by screw fastening; and

a C-shaped balancer for adjusting the rotary balance of the magnetic disk and mounted on the outer surrounding portion of the clamp,

wherein the C-shaped balancer has a generally rectangular cross-section.

2. The magnetic disk apparatus according to claim 1 , wherein a groove element is formed in the side of the outer surrounding portion of the clamp, and the C-shaped balancer is fit into the groove element.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2009
From: FUJITSU LIMITED
To: TOSHIBA STORAGE DEVICE CORPORATION
Reel/Frame 023861/0881 →