G - Physics – 11 – B
Patent
G - Physics
11
B
352/24.3
G11B 25/04 (2006.01) G03B 17/00 (2006.01) G11B 17/028 (2006.01) G11B 19/20 (2006.01) G11B 19/28 (2006.01)
Patent
CA 1210150
ABSTRACT OF THE DISCLOSURE A magnetic recording apparatus includes a rotary disc rotatable about an axis and having an outwardly extending radial flange with three apertures therein; three pins mounted in the apertures on the rotary disc and positioned about a circle concentric with the axis for accurately supporting an information record disc thereon, each of the three pins projecting from the rotary disc to substantially the same height; and a magnet positioned on the flange of the rotary disc and having a height lower than the three pins for magnetically attracting the information record disc to secure the latter on the three pins.
436572
Akiyama Tsutomu
Saito Etsuro
Takahashi Shinichiro
Yuasa Masami
Gowling Lafleur Henderson Llp
Sony Corporation
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