Dummy wafer

Duo material carbon composite brake disk

DVD disc with four information layers, and method for making...

Dye and recording media utilizing the same

Dye composition for optical recording media having selected anio

Dye impermeable, distortion resistant textile identification pro

Edge strengthened substrate of a data storage disk and method fo

Edge-cladding glass of disc laser glass

Elastic pad

Electric circuit substrate

Electroconductive resin composition and a videodisc record

Encoder made of rubber material and method of manufacturing...

Enhancement of positive contrast in optical recording

Epoxy resin composition and optical information recording...

Erasable optical disk media and method of recording/erasing the

Erasable optical recording medium and method for writing, readin

Erasable phase change optical recording elements

Etched mold surface for use in making light-readable discs

Exchange-discharge body with reactive material

Fast-writable and precision-writable high-capacity optical...