US4414273A
Expired / Lapsed
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Thermal recording materials
Assignee: Fujifilm Holdings Corp
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Filing: 1982-05-20
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Granted: 1983-11-08
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Expires: 2002-05-20
Abstract
Abstract Thermal recording materials comprising a thermal recording layer provided on a base, which do not deteriorate with the passage of time due to moisture or oxygen in the air, are disclosed, wherein a stabilizing film composed of at least one metal selected from the group consisting of In, Al, Ag, Au, Rh, Pd, Ir and Pt is provided on at least one face of the recording layer and the film has a thickness of 20 to 100 Å.
Inventors
- 👤 Minoru Wada
- 👤 Yonosuke Takahashi
- 👤 Eiichi Hasegawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:22
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/252; G11B7/257; B; B41; B41M; B41M5/00; B41M5/24; G11B7/242; G11B7/243; G11B7/253; G11B7/2533; G11B2007/24302; G11B2007/2431; G11B2007/24312; G11B2007/24314; G11B2007/24318; G11B2007/24324; G11B2007/24326; G11B2007/25705; G11B2007/25706; G11B2007/25708; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S430/00; Y10S430/165; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
116 words
In thermal recording materials comprising a thermal recording layer of high optical density provided on a base, the improvement wherein the recording layer comprises a mixture of a metal and a substance capable of increasing recording sensitivity, said substance being present in an amount of 10 to 80% by volume and further wherein a stabilizing film composed of at least one metal selected from the group consisting of In, Al, Ag, Au, Rh, Pd, Ir and Pt is provided on at least one face of said recording layer, said film having a thickness of 22 to 100 Å and said stabilizing film preventing deterioration of said recording layer due to moisture or oxygen in the air.
Claim 2
Dependent Claim
116 words
In thermal recording materials comprising a thermal recording layer of high optical density provided on a base, the improvement wherein the recording layer comprises a mixture of a metal and a substance capable of increasing recording sensitivity, said substance being present in an amount of 10 to 80% by volume and further wherein a stabilizing film composed of at least one metal selected from the group consisting of In, Al, Ag, Au, Rh, Pd, Ir and Pt is provided on at least one face of said recording layer, said film having a thickness of 22 to 100 Å and said stabilizing film preventing deterioration of said recording layer due to moisture or oxygen in the air.
Claim 3
Dependent Claim
15 words
Thermal recording materials according to claim 1, wherein said base is a transparent plastic base.
Claim 4
Dependent Claim
14 words
Thermal recording materials according to claim 1, wherein said film consists essentially of In.
Claim 5
Dependent Claim
48 words
Thermal recording materials according to claim 1, wherein said recording layer is composed of a mixture of at least one metal selected from the group consisting of Sn, Bi and In, and at least one substance selected from the group consisting of GeS, SnS and PbI 2 .
Claim 6
Dependent Claim
32 words
Thermal recording materials according to claim 1, wherein said stabilizing film consists essentially of at least one metal selected from the group consisting of In, Al, Au, Rh, Pd, Ir and Pt.
Claim 7
Dependent Claim
21 words
Thermal recording materials according to claim 1, wherein said substance is present in an amount of 20 to 70% by volume.
Claim 8
Dependent Claim
13 words
Thermal recording materials according to claim 1, wherein said substance is an oxide.
Claim 9
Dependent Claim
13 words
Thermal recording materials according to claim 1, wherein said substance is a halide.
Claim 10
Dependent Claim
128 words
In thermal recording materials comprising two recording elements having a thermal recording layer of high optical density provided on a base, and an air layer sandwiched between said recording elements such that said recording layers face each other, the improvement wherein the recording layer comprises a mixture of a metal and a substance capable of increasing recording sensitivity, said substance being present in amount of 10 to 80% by volume and further wherein a stabilizing film composed of at least one metal selected from the group consisting of In, Al, Ag, Au, Rh, Pd, Ir and Pt is provided on at least one face of each of said recording layers, said stabilizing film preventing the deterioration of said recording layer due to moisture or oxygen in the air.
Claim 11
Dependent Claim
128 words
In thermal recording materials comprising two recording elements having a thermal recording layer of high optical density provided on a base, and an air layer sandwiched between said recording elements such that said recording layers face each other, the improvement wherein the recording layer comprises a mixture of a metal and a substance capable of increasing recording sensitivity, said substance being present in amount of 10 to 80% by volume and further wherein a stabilizing film composed of at least one metal selected from the group consisting of In, Al, Ag, Au, Rh, Pd, Ir and Pt is provided on at least one face of each of said recording layers, said stabilizing film preventing the deterioration of said recording layer due to moisture or oxygen in the air.
Claim 12
Dependent Claim
15 words
Thermal recording materials according to claim 9, wherein said base is a transparent plastic base.
Claim 13
Dependent Claim
14 words
Thermal recording materials according to claim 9, wherein said film consists essentially of In.
Claim 14
Dependent Claim
48 words
Thermal recording materials according to claim 9, wherein said recording layer is composed of a mixture of at least one metal selected from the group consisting of Sn, Bi and In, and at least one substance selected from the group consisting of GeS, SnS and PbI 2 .
Claim 15
Dependent Claim
32 words
Thermal recording materials according to claim 9, wherein said stabilizing film consists essentially of at least one metal selected from the group consisting of In, Al, Au, Rh, Pd, Ir and Pt.
Claim 16
Dependent Claim
19 words
Thermal recording materials according to claim 9, wherein said stabilizing film has a thickness of 20 to 100 Å.
Claim 17
Dependent Claim
21 words
Thermal recording materials according to claim 9, wherein said substance is present in an amount of 20 to 70% by volume.
Claim 18
Dependent Claim
13 words
Thermal recording materials according to claim 9, wherein said substance is an oxide.
Claim 19
Dependent Claim
13 words
Thermal recording materials according to claim 9, wherein said substance is a halide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |