Disc for recording information signals

Details Disc for recording information signals Disc for recording information signals

G - Physics

11

B

G11B 7/24 (2006.01) G11B 23/00 (2006.01)

Patent

CA 2072056

A disc for recording information signals includes a disc substrate of a synthetic resin having a center hole and an information signal recording layer formed on one major surface and a magnetic plate arranged on the major surface for closing the center hole. A recess for accommodating the magnetic plate is formed on the major surface of the disc substrate for surrounding the center hole. At least a part of the rim of the recess is thermally deformed for forming one or more lugs for holding the magnetic plate disposed in the recess with respect to the disc substrate by the lug(s).

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