Optical disc using...

Details Optical disc using... Optical disc using...

2007-03-14

2010-11-16

Mulvaney, Elizabeth (Department: 1785)

Stock material or miscellaneous articles

Circular sheet or circular blank

C428S064400, C430S270110

Reexamination Certificate

active

07833603

ABSTRACT:
An optical disc includes an active disc on which information is recorded and a dummy disc for protecting the active disc. The active disc and the dummy disc are bonded to form a single body, and the dummy disc is made of methylmethacrylate-acrylonitrile-butadiene-styrene copolymer (MABS) resin.

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