US5744290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplitized color silver halide photographic element suitable for use in rapid image presentation
Assignee: Eastman Kodak Co
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Filing: 1997-04-07
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Granted: 1998-04-28
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Expires: 2017-04-07
Abstract
Abstract Duplitized color silver halide photographic elements have an ISO of at least 25 and at least one photosensitive imaging layer or color recording unit on each side of the support. Such elements can be rapidly processed to provide desired color images.
Inventors
- 👤 Richard P. Szajewski
- 👤 Gary L. House
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:10
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3022; G03C7/3029; G03C1/00; G03C1/005; G03C1/0051; G03C1/035; G03C2001/03511; G03C2001/03517; G03C2001/03558; G03C2200/00; G03C2200/01; G03C2200/03; G03C2200/10; G03C7/32; G03C7/333; Y; Y10; Y10S; Y10S430/00; Y10S430/164
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
123 words
A light sensitive silver halide color photographic element exhibiting a sensitivity of at least ISO 25, and comprising a support having thereon at least two color recording units, each of said at least two color recording units being sensitive to a distinct region of the electromagnetic spectrum, and each comprising at least one silver halide emulsion layer having light sensitive silver halide emulsion grains in reactive association with a compound capable of forming an image dye during a color development step, thereby providing at least two such silver halide emulsion layers sensitive to distinct regions of the electromagnetic spectrum in said element, wherein said support is interposed between two of said silver halide emulsion layers sensitive to distinct regions of the electromagnetic spectrum.
Claim 2
Dependent Claim
123 words
A light sensitive silver halide color photographic element exhibiting a sensitivity of at least ISO 25, and comprising a support having thereon at least two color recording units, each of said at least two color recording units being sensitive to a distinct region of the electromagnetic spectrum, and each comprising at least one silver halide emulsion layer having light sensitive silver halide emulsion grains in reactive association with a compound capable of forming an image dye during a color development step, thereby providing at least two such silver halide emulsion layers sensitive to distinct regions of the electromagnetic spectrum in said element, wherein said support is interposed between two of said silver halide emulsion layers sensitive to distinct regions of the electromagnetic spectrum.
Claim 3
Dependent Claim
12 words
The element of claim 1 having at least three color recording units.
Claim 4
Dependent Claim
20 words
The element of claim 1 comprising at least one emulsion layer having 50 mol % chloride based on total silver.
Claim 5
Dependent Claim
29 words
The element of claim 1 wherein each color recording unit comprises an image-forming coupler that forms dye upon reaction with an oxidized form of a p-phenylenediamine color developing agent.
Claim 6
Dependent Claim
20 words
The element of claim 1 comprising at least one emulsion layer having 50 mol % bromide based on total silver.
Claim 7
Dependent Claim
23 words
The element of claim 1 comprising at least one emulsion layer having up to about 6 mol % iodide based on total silver.
Claim 8
Dependent Claim
32 words
The element of claim 1 comprising: a) at least one of a red light sensitive recording unit and a green light sensitive recording unit, and b) a blue light sensitive recording unit.
Claim 9
Dependent Claim
50 words
The element of claim 7 wherein at least on e green light sensitive color layer and at least one red light sensitive color layer are disposed on one side of said support, and at least one blue light sensitive color layer is disposed on the opposite side of said support.
Claim 10
Dependent Claim
21 words
The element of claim 1 comprising a tabular grain silver halide emulsion having an average aspect ratio greater than about 2.
Claim 11
Dependent Claim
38 words
The element of claim 7 wherein said red light sensitive color recording unit or said green light sensitive color recording unit comprises a silver halide emulsion with a content of greater than about 50 mol % silver chloride.
Claim 12
Dependent Claim
53 words
The element of claim 1 comprising a silver halide emulsion with a content greater than about 50 mol % silver chloride, and in which at least 50% of the grain projected area is accounted for by tabular grains having an aspect ratio of greater than 2 and having {100} or {111} major faces.
Claim 13
Dependent Claim
32 words
The element of claim 7 wherein said blue light sensitive color recording unit comprises a silver halide emulsion with a silver iodide content of greater than about 0.5 mol % silver iodide.
Claim 14
Dependent Claim
22 words
The element of claim 1 wherein the coated layer thickness on either side of said support is up to about 30 μm.
Claim 15
Dependent Claim
19 words
The element of claim 1 comprising up to about 0.2 mmol/m 2 of an incorporated permanent Dmin adjusting dye.
Claim 16
Dependent Claim
16 words
The element of claim 1 comprising up to 0.6 mmol/m 2 of a color masking coupler.
Claim 17
Dependent Claim
21 words
The element of claim 1 wherein said support is substantially transparent, and has a thickness of up to about 150 μm.
Claim 18
Dependent Claim
43 words
The element of claim 8 wherein said red or green light sensitive color layer comprises an emulsion having at least 50 mol % silver chloride, and said blue light sensitive color layer comprises an emulsion having at least 50 mol % silver bromide.
Claim 19
Dependent Claim
36 words
The element of claim 1 wherein said at least one silver halide emulsion is a tabular silver halide emulsion having an average aspect ratio of at least 2 and is bounded by predominantly {100} major faces.
Claim 20
Dependent Claim
35 words
The element of claim 1 wherein at least one silver halide emulsion is a tabular silver halide emulsion having an average aspect ratio of at least 2 and is bounded by predominantly {111} major faces.
Claim 21
Dependent Claim
14 words
The element of claim 1 wherein said support further comprises a magnetic recording layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-27 | 2001-10-27 | 2002-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-27 | 2005-10-27 | 2006-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-27 | 2009-10-27 | 2010-04-28 | $7700.00 | Window Closed / Lapsed |