Phase-change recording material used for information...

Details Phase-change recording material used for information... Phase-change recording material used for information...

2005-07-19

2010-02-09

Angebranndt, Martin J (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

C430S945000, C428S064400, C428S064500, C369S275200, C369S275500, C369S275400, C369S283000

Reexamination Certificate

active

07659049

ABSTRACT:
A phase-change recording material used for an information recording medium utilizing a crystalline state as a non-recorded state and an amorphous state as a recorded state, which has the composition of the following formula (1) as the main component:in-line-formulae description="In-line Formulae" end="lead"?(Sb1−xSnx)1−y−w−zGeyTewM1z  formula (1)in-line-formulae description="In-line Formulae" end="tail"?wherein each of x, y, z and w represents atomicity, x, z and w are numbers which satisfy 0.01≦x≦0.5, 0≦z≦0.3 and 0≦w≦0.1, respectively, and the element M1 is at least one element selected from the group consisting of In, Ga, Pt, Pd, Ag, rare earth elements, Se, N, O, C, Zn, Si, Al, Bi, Ta, W, Nb and V, and(I) when z=0 and w=0, y is a number which satisfies 0.1≦y≦0.3,(II) when 0≦z≦0.3 and w=0, y is a number which satisfies 0.05≦y≦0.3, and(III) when 0≦z≦0.3 and 0<w≦0.1, y is a number which satisfies 0.01≦y≦0.3.

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