Process for producing stamper of multi-valued ROM disc,...
Process for recording and/or reproducing digital data on a recor
Producing system and corresponding information recording...
Protected optical disk of welded construction
Protected optical disk with a free layer holder
Protected recording medium
Protective cartridge for optical discs
Protective cartridge for rewritable optical disk
Protective cartridge for rewritable optical disk
Protective cover for an optical disc
Protective cover for an optical disc
Protective cover for optically read digital disks
Protective divider and enclosure disc assembly for laser...
Pseudo-reflective read inhibitor for optical storage media
Quadrilayer optical draw medium
Re-usable information recording medium
Re-writable phase change type optical disk with suppressed recor
Read-once record medium
Read-only optical disc medium and method of fabricating the...
Read-only optical disk containing a reflective layer comprising