US4912084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer sheet
Assignee: DAI NIPPON INSATSU 1-1 ICHIGAYA-KAGA-CHO 1-CHOME SHINJUKU-KU TOKYO-TO JAPAN KK
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Filing: 1987-10-07
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Granted: 1990-03-27
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Expires: 2007-10-07
Abstract
Abstract The present invention is a dye represented by the formula (I) and/or (II) shown below, and a heat transfer sheet characterized by the use of said dye: ##STR1## wherein each of X 1 and X 2 represents hydrogen, an alkyl group, alkoxy group, acylamino group, aminocarbonyl group or a halogen, R 1 or R 4 represents a substituent such as hydrogen, one or more alkyl groups, alkoxy groups, halogens, hydroxyl groups, amino groups, alkylamino groups, acylamino groups, sulfonylamino groups, aminocarbonyl groups, aryl groups, arylalkyl groups or nitro groups; and each R 2 and R 3 represents an alkyl group or a substituted alkyl group.
Inventors
- 👤 Jumpei Kanto
- 👤 Hitoshi Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:18
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/385; B41M5/39; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A heat transfer sheet comprising a substrate sheet and a dye carrying layer formed on one surface of said substrate sheet, said dye carrying layer comprising a dye and a binder, said dye being represented by the following formula: ##STR11## wherein each of X 1 and X 2 represents hydrogen, an alkyl group, alkoxy group, acylamino group, aminocarbonyl group or a halogen; R 1 represents a substituent selected from hydrogen, one or more alkyl groups, alkoxy groups, halogens, hydroxyl groups, amino groups, alkylamino groups, acylamino groups, sulfonylamino groups, aminocarbonyl groups, aryl groups, arylalkyl groups or nitro groups; each of R 2 and R 3 represents an alkyl group or a substituted alkyl group; and R 4 represents a substituent selected from one or more alkyl groups, alkoxy groups, halogens, hydroxyl groups, amino groups, alkylamino groups, acylamino groups, sulfonylamino groups, aminocarbonyl groups, aryl groups, arylalkyl groups or nitro groups.
Claim 2
Dependent Claim
148 words
A heat transfer sheet comprising a substrate sheet and a dye carrying layer formed on one surface of said substrate sheet, said dye carrying layer comprising a dye and a binder, said dye being represented by the following formula: ##STR11## wherein each of X 1 and X 2 represents hydrogen, an alkyl group, alkoxy group, acylamino group, aminocarbonyl group or a halogen; R 1 represents a substituent selected from hydrogen, one or more alkyl groups, alkoxy groups, halogens, hydroxyl groups, amino groups, alkylamino groups, acylamino groups, sulfonylamino groups, aminocarbonyl groups, aryl groups, arylalkyl groups or nitro groups; each of R 2 and R 3 represents an alkyl group or a substituted alkyl group; and R 4 represents a substituent selected from one or more alkyl groups, alkoxy groups, halogens, hydroxyl groups, amino groups, alkylamino groups, acylamino groups, sulfonylamino groups, aminocarbonyl groups, aryl groups, arylalkyl groups or nitro groups.
References Cited (Backward Citations)
US4614521A
Cited
GB2161824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-26 | 1993-09-25 | 1994-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-26 | 1997-09-25 | 1998-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-26 | 2001-09-25 | 2002-03-27 | $7700.00 | Window Closed / Lapsed |