Stock material or miscellaneous articles – Circular sheet or circular blank
Reexamination Certificate
2006-06-20
2006-06-20
Mulvaney, Elizabeth (Department: 1774)
Stock material or miscellaneous articles
Circular sheet or circular blank
C428S064500, C428S064600, C430S270130
Reexamination Certificate
active
07063876
ABSTRACT:
A multilayer information recording medium has both good reproducing performance and good recording and rewriting capabilities, as well as good repeated rewriting capabilities even after being archived for a long period of time. The information recording medium has at least a first recording layer and a second recording layer, which generate reversible phase changes between the crystalline phase and the amorphous phase. The first recording layer contains Ge, Te and Bi, while the second recording layer contains Sb and one or more elements M1 selected from a group including V, Mn, Ga, Ge, Se, Ag, In, Sn, Te, Pb, Bi and Au.
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Kojima Rie
Nishihara Takashi
Yamada Noboru
Mulvaney Elizabeth
Wenderoth , Lind & Ponack, L.L.P.
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