Armstrong, Westerman & Hattori, LLP
Laminated disc and information recording disc
A laminated disc composed of at least two supporting discs superposed upon another, each of the supporting discs having a thickness of 0.01 to 1 mm and being made of a vinyl alicyclic hydrocarbon polymer. This laminated disc is used as an optical disc including digital video disc (DVD).
Zeon Corporation
G Y B Y
G11B Y10T B32B Y10T
additional additional inventional additional
Haruhiko
Takahashi