Patent US4187990A successfully refreshed from Google Patents.
EP0045183A2
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EP
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Recording material
Assignee: Asahi Kasei Corp
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Filing: 1981-07-23
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Granted: —
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Expires: 2001-07-23
Abstract
Abstract A recording material for heat mode recording comprising a substrate (1) and a metallic recording layer (2), further comprises at least one layer(5) of a mixture of a metallic compound and a metal, preferably on the side of the recording layer (2) which is intended to be irradiated with an energy source (7). This material has been found to have a high sensitivity and a high signal to notse ratio. When the recording material further comprises a stabilizing layer (3) of a metal oxide and/or a stabilizing layer (4) of a metallic compound, the storage stability and archivability can be improved, and, in some cases, the signal to noise ratio can be further improved.
Inventors
- 👤 Koichi Mori
- 👤 Masafumi Nakao
- 👤 Isao Morimoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 23:33
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/252; G11B7/257; G11B7/242; G11B7/243; G11B7/254; G11B7/2548; G11B2007/24302; G11B2007/24304; G11B2007/24306; G11B2007/24308; G11B2007/2431; G11B2007/24312; G11B2007/24314; G11B2007/24316; G11B2007/25705; G11B2007/25715; G11B7/2578
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
47 words
A recording material comprising a substrate, a metallic recording layer supported by said substrate, and at least one layer of a mixture of a metallic compound and a metal, said at least one mixture layer being provided on at least one side of said metallic recording layer.
Claim 2
Dependent Claim
47 words
A recording material comprising a substrate, a metallic recording layer supported by said substrate, and at least one layer of a mixture of a metallic compound and a metal, said at least one mixture layer being provided on at least one side of said metallic recording layer.
Claim 3
Dependent Claim
45 words
A recording material according to claim 1, wherein said mixture layer is provided on the side of said metallic recording layer remote from said substrate, the material further comprising a stabilizing layer of a metal oxide provided between said substrate and said metallic recording layer.
Claim 4
Dependent Claim
32 words
A recording material.according to claim 2, which further comprises a stabilizing layer of a metallic compound provided either between said metallic recording layer and said mixture layer or on said mixture layer.
Claim 5
Dependent Claim
38 words
A recording material according to claim 1, wherein said mixture layer is provided between said substrate and said metallic recording layer, the material further comprising a stabilizing layer of a metallic compound provided on said metallic recording layer.
Claim 6
Dependent Claim
36 words
A recording material according to claim 4, which further comprises a stabilizing layer of a metal oxide provided either between said substrate and said mixture layer or between said mixture layer and said metallic recording layer.
Claim 7
Dependent Claim
30 words
A recording material according to claim 1, which comprises first and second mixture layers respectively provided on the sides of said metallic recording layer adjacent and remote from said substrate.
Claim 8
Dependent Claim
38 words
A recording material according to claim 6, which further comprises a stabilizing layer of a metal oxide provided either between said substrate and said first mixture layer or between said first mixture layer and said metallic recording layer.
Claim 9
Dependent Claim
37 words
A recording material according to claim 6 or 7, which further comprises a stabilizing layer of a metallic compound provided either between said metallic recording layer and said second mixture layer or on said second mixture layer.
Claim 10
Dependent Claim
79 words
A recording material according to any one of claims 1 to 8, wherein said mixture layer comprises at least one metallic compound selected from oxides and fluorides of Be, B, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Sr, Y, Zr, Nb, Tc, Ru, Rh, Pd, Ag, In, Sn, Sb, Ba, La, Hf, Ta, Re, Ir, Tl, Pb, Bi, Dy, Er, Gd, Nd, Pr, Ce, Mo, W, Te and Sm.
Claim 11
Dependent Claim
72 words
A recording material according to any one of claims 1 to 9, where in said mixture layer comprises at least one metal selected from Al, Si, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Sr, Y, Zr, Nb, Tc, Ru, Rh, Pd, Ag, In, Sn, Sb, La, Hf, Ta, Re, Ir, Tl, Pb, Bi, Dy, Er, Gd, Nd, Pr, Sm, Mo, Au, Pt, W, Se and Te.
Claim 12
Dependent Claim
43 words
A recording material according to any one of claims 1 to 10, wherein said metallic recording layer comprises at least one metal selected from In, Bi, Sn, Zn, Pb, Mg, Au, Ge, Ga, Tl, Cd, Sb, Rh, Se, Te, Al and alloys thereof.
Claim 13
Dependent Claim
75 words
A recording material according to claim 2, 5 or 7, wherein said stabilizing layer of the metal oxide comprises at least one oxide of a metal selected from Be, B, Mg, Al, Si, Ga, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ge, As, Sr, Y, Zr, Nb, Te, Ru, Rh, Pd, Ag, In, Sn, Sb, Ba, La, Hf, Ta, Re, Ir, Tl, Pb, Bi, Dy, Er, Gd, Nd, Pr and Sm.
Claim 14
Dependent Claim
74 words
A recording material according to claim 3, 4 or 8, wherein said stabilizing layer of the metallic compound comprises at least one compound selected from oxides, nitrides and fluorides of Be, B, Mg, Al, Si, Ga, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ge, As, Sr, Y, Zr, Nb, Te, Ru,Pd,ph,Ag, In, Sn, Sb, Ba, La, Hf, Ta, Re, Ir, Tl, Pb, Bi, Dy, Er, Gd, Nd, Pr and Sm.
Claim 15
Dependent Claim
37 words
A recording material according to claim 4, 5; 6, 7 or 8, wherein said metallic recording layer consists substantially of a bismuth alloy containing antimony in an amount of from 16% to 30% in number of atoms.
References Cited (Backward Citations)
No citation records indexed.
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