Patent US4818591A successfully refreshed from Google Patents.
US4818591A
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US
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Thermal transfer recording medium
Assignee: Konica Minolta Inc
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Filing: 1986-09-30
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Granted: 1989-04-04
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Expires: 2006-09-30
Abstract
Abstract There is disclosed a thermal transfer recording medium comprising a support, a layer containing an aqueous emulsion of a heat-fusible substance provided on the support and at least one colorant layer comprising an aqueous emulsion of a thermoplastic resin and a colorant provided on the layer containing an aqueous emulsion of a heat-fusible substance, the colorant layer having a film thickness of not more than 2 μm.
Inventors
- 👤 Shegehiro Kitamura
- 👤 Masao Asano
- 👤 Yoshiaki Shimizu
- 👤 Takao Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:11
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/423; B41M5/382; B41M5/392; B41M2205/00; B41M2205/06; B41M5/395; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
64 words
A thermal transfer recording medium, comprising a support, a heat-fusible layer formed from an aqueous emulsion of a heat-fusible substance coated on said support and dried; and at least one colorant layer formed from an aqueous emulsion of a thermoplastic resin and a colorant coated on said layer and thereafter dried said colorant layer having a film thickness of not more than 2 μm.
Claim 2
Dependent Claim
64 words
A thermal transfer recording medium, comprising a support, a heat-fusible layer formed from an aqueous emulsion of a heat-fusible substance coated on said support and dried; and at least one colorant layer formed from an aqueous emulsion of a thermoplastic resin and a colorant coated on said layer and thereafter dried said colorant layer having a film thickness of not more than 2 μm.
Claim 3
Dependent Claim
27 words
The thermal transfer recording medium of claim 1, wherein said heat-fusible layer has a film thickness which is thicker than the film thickness of the colorant layer.
Claim 4
Dependent Claim
26 words
The thermal transfer recording medium of claim 2, wherein the thickness of said heat-fusible layer is within the range of from 0.5 μm to 3.5 μm.
Claim 5
Dependent Claim
29 words
The thermal transfer recording medium of claim 1, wherein the ratio or the thickness of said colorant layer to the thickness of said heat-fusible layer is 0.3 to 1.0.
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) | 1992-04-03 | 1992-10-03 | 1993-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-03 | 1996-10-03 | 1997-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-03 | 2000-10-03 | 2001-04-04 | $7700.00 | Window Closed / Lapsed |