Clamping plate, cartridge case, information medium, mold,...
Cleaning device for the main shaft CD carrying tray of a CD...
Data storage disk capable of limiting extension of crack
Disk assembly having integral clamp and/or spacer
Disk for disk drive having crack blocking portions
Electrical connector programming tool
Intermediate for optical recording medium and method of...
Magnetic hub assembly for data storage disk
Methods and apparatus for reducing the shrinkage of an...
Optical disk having a projection with lateral inclined surface
Optical information medium and making method
Optical information medium and making method
Optical information recording medium
Optical information recording medium
Optical information recording medium and optical information...
Spindle motor, information recording and reproducing...
Turntable assembly having disc centering lead springs...