US4904636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive recording material
Assignee: Kanzaki Paper Manufacturing Co Ltd
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Filing: 1988-03-17
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Granted: 1990-02-27
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Expires: 2008-03-17
Abstract
Abstract A heat-sensitive recording material comprising a support and a recording layer provided on the support, said recording layer containing a colorless or pale-colored basic dye and a color developer capable of forming a color upon application of heat, wherein electroconductive titanium oxide is incorporated in at least one of layers constituting the recording material.
Inventors
- 👤 Hiroo Hayashi
- 👤 Toshimitsu Arikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:32
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/337; B41M5/3377; B41M2205/00; B41M2205/04; B41M2205/36; B41M2205/38; B41M2205/40; B41M5/40; B41M5/41; B41M5/42; B41M5/426; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/25; Y10T428/256
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
84 words
A heat-sensitive recording material comprising a support and a recording layer provided on the support, said recording layer containing a colorless or pale-colored basic dye and a color developer capable of forming a color upon application of heat and said support containing a back surface layer, wherein electroconductive titanium oxide prepared by treating the surface of fine titanium oxide powder with fine granular tin oxide and antimony oxide is incorporated in one of said recording layer and said back surface layer of said support.
Claim 2
Dependent Claim
84 words
A heat-sensitive recording material comprising a support and a recording layer provided on the support, said recording layer containing a colorless or pale-colored basic dye and a color developer capable of forming a color upon application of heat and said support containing a back surface layer, wherein electroconductive titanium oxide prepared by treating the surface of fine titanium oxide powder with fine granular tin oxide and antimony oxide is incorporated in one of said recording layer and said back surface layer of said support.
Claim 3
Dependent Claim
18 words
The recording material as claimed in claim 1, wherein the support is a film or a synthetic paper.
References Cited (Backward Citations)
US4373013A
Cited
JPS57148687A
Cited
JPS57156292A
Cited
JPS57170794A
Cited
JPS57199687A
Cited
EP0116313A2
Cited
EP0179492A2
Cited
EP0238709B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |