Disk for disk drive having crack blocking portions

Details Disk for disk drive having crack blocking portions Disk for disk drive having crack blocking portions

2007-09-18

2007-09-18

Castro, Angel (Department: 2627)

Dynamic optical information storage or retrieval

Optical storage medium structure

Disk hub

Reexamination Certificate

active

10967147

ABSTRACT:
A disk for a disk drive including a disk body with a center through hole for fixing the disk body to a turntable formed at a center thereof, a clamping portion formed on the disk body around the center through hole to fix the disk body to the turntable, a signal recording portion which is formed on a surface of the disk body around a rim of the clamping potion and includes a signal recording section on which digital signals are recorded, and crack blocking portions bored through the clamping portion.

REFERENCES:
patent: 6532210 (2003-03-01), Park
patent: 7096480 (2006-08-01), Chuang
patent: 2001-0054816 (2001-07-01), None

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