Patent US5169746A successfully refreshed from Google Patents.
US5169746A
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Silver halide color photographic photosensitive material
Assignee: Fujifilm Corp
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Filing: 1990-12-24
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Granted: 1992-12-08
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Expires: 2010-12-24
Abstract
Abstract A silver halide color photographic photo-sensitive material comprises a support, and a layer arrangement formed on the support. The layer arrangement includes a red-sensitive silver halide emulsion layer containing a color coupler capable of forming cyan dye upon reacting with an oxidation product of a developing agent, a green-sensitive silver halide emulsion layer containing a color coupler capable of forming magenta dye upon reacting with the oxidation product of the developing agent, and a blue-sensitive silver halide emulsion layer containing a color coupler capable of forming yellow dye upon reacting with the oxidation product of the developing agent. The red-sensitive layer has a sensitivity at 650 nm of 50% or less of its maximum sensitivity, and contains substantially no magenta-colored couplers.
Inventors
- 👤 Noboru Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:59
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3041; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/157; Y10S430/158
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
133 words
A silver halide color negative photographic photosensitive film material, comprising: a support; and a layer arrangement formed on said support and comprising: a red-sensitive silver halide emulsion layer containing a color coupler capable of forming cyan dye upon reacting with an oxidation product of a developing agent, a green-sensitive silver halide emulsion layer containing a color coupler capable of forming magenta dye upon reacting with the oxidation product of the developing agent, and a blue-sensitive silver halide emulsion layer containing a color coupler capable of forming yellow dye upon reacting with the oxidation product of the developing agent; said red-sensitive layer having a sensitivity at 650 nm of 50% or less of its maximum sensitivity, and containing substantially no magenta-colored cyan couplers; said color negative film further comprising a development inhibitor releasing coupler.
Claim 2
Dependent Claim
133 words
A silver halide color negative photographic photosensitive film material, comprising: a support; and a layer arrangement formed on said support and comprising: a red-sensitive silver halide emulsion layer containing a color coupler capable of forming cyan dye upon reacting with an oxidation product of a developing agent, a green-sensitive silver halide emulsion layer containing a color coupler capable of forming magenta dye upon reacting with the oxidation product of the developing agent, and a blue-sensitive silver halide emulsion layer containing a color coupler capable of forming yellow dye upon reacting with the oxidation product of the developing agent; said red-sensitive layer having a sensitivity at 650 nm of 50% or less of its maximum sensitivity, and containing substantially no magenta-colored cyan couplers; said color negative film further comprising a development inhibitor releasing coupler.
Claim 3
Dependent Claim
27 words
The color negative film according to claim 1, wherein the sensitivity at 650 nm of the red-sensitive emulsion layer is 30% or less of its maximum sensitivity.
Claim 4
Dependent Claim
24 words
The color negative film according to claim 1, wherein the red-sensitive emulsion layer provides under-masking to the green-sensitive layer when it is exposed singly.
Claim 5
Dependent Claim
19 words
The color negative film according to claim 1, wherein a gradient of the negative image is 0.05 or more.
Claim 6
Dependent Claim
131 words
The color negative film according to claim 1, wherein the development inhibitor releasing coupler includes at least one coupler selected from the group consisting of the following formulas: A-TIME-Z.sub.2 (VI) A-Z.sub.1 (VII) A-P-Z.sub.2 (IX) wherein A is a coupling component which can react with the oxidation product of the color developing agent to release a -TIME-Z 2 group or a -P-Z 2 group, TIME is a timing group, Z 1 is a diffusible development inhibitor, -P-Z 2 is a group which, after being released from A, generates a development inhibitor upon reacting with the oxidation product of the developing agent, Z 2 is a diffusible development inhibitor, A-TIME-Z 2 is a diffusible DIR compound if -TIME-Z 2 is diffusible, A-P-Z 2 is a diffusible DIR compound if -P-Z 2 is diffusible.
Claim 7
Dependent Claim
31 words
The color negative film according to claim 5, wherein A is selected from the group consisting of acylacetoanilides, malondiesters, malondiamides, benzoylmethanes, pyrazolones, pyrazotriazoles, pyrazobenzimidazoles, indazolones, phenols, naphthols, acetophenones, indanones, and oxazolones.
Claim 8
Dependent Claim
89 words
The color negative film according to claim 5, wherein A is represented by formulas (X) to (XIII): ##STR6## wherein R 130 is an aliphatic group, an aromatic group, an alkoxy group, or a heterocyclic group, R 131 and R 132 are either an aromatic group or a heterocyclic group, R 133 is a hydrogen atom, an alkyl group, a halogen atom,, a carboamide group, or a sulfonamide group, j is an integer from 1 to 5, R 134 and R 135 are hydrogen atoms, alkyl groups, or aryl groups.
Claim 9
Dependent Claim
37 words
The color negative film according to claim 5, wherein the development inhibitor is represented by formula (IX) and P is a group which becomes a redox group or a coupler after it has been cleaved from A.
Claim 10
Dependent Claim
95 words
The color negative film according to claim 5, wherein any of the compounds (VI), (VII) or (IX) are contained in any layer of the color negative film material in an amount in the range of 0.0001 to 0.1 mol per mol of silver if that layer contains a silver halide emulsion, or, if the layer contains no silver halide emulsions, the compounds of formulas (VI), (VII) or (IX) can be contained in the layer in an amount falling within said range per mol of silver which is contained in a layer adjacent to that layer.
Claim 11
Dependent Claim
28 words
The color negative film according to claim 1, wherein at least one sublayer of the red-sensitive layer or a layer adjacent thereto contains a development inhibitor releasing coupler.
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) | 1995-12-08 | 1996-06-08 | 1996-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-08 | 2000-06-08 | 2000-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-08 | 2004-06-08 | 2004-12-08 | $7700.00 | Window Closed / Lapsed |