US4948716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide color photographic material
Assignee: Fujifilm Holdings Corp
•
Filing: 1988-11-07
•
Granted: 1990-08-14
•
Expires: 2008-11-07
Abstract
Abstract The present invention is directed to a silver halide color photographic material including a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support, wherein at least one of the photosensitive layers comprises two or more unit layers having different sensitivities, and among all of said unit layers, the unit layer highest in sensitivity contains at least one of (a) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a compound that can produce a development inhibitor or its precursor when oxidized, and (b) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a precursor of a compound that can produce a development inhibitor or its precursor when oxidized, with the amount of said at least one of compounds (a) and (b) being at most 1 mol % based on the amount of the silver halide in said unit layer highest in sensitivity.
Inventors
- 👤 Keiji Mihayashi
- 👤 Seiji Ichijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:29
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30523; G03C7/3003; G03C7/3029; G03C2007/3034; G03C7/30541; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
164 words
A silver halide color photographic material including a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support, wherein at least one of the photosensitive layers comprises two or more unit layers having different sensitivities, and among all of said unit layers, the unit layer highest in sensitivity contains at least one of (a) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a compound that can produce a development inhibitor or its precursor when oxidized, and (b) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a precursor of a compound that can produce a development inhibitor or its precursor when oxidized, with the amount of said at least one of the compounds (a) and (b) being at most 1 mol% based on the amount of the silver halide in said unit layer highest in sensitivity.
Claim 2
Dependent Claim
164 words
A silver halide color photographic material including a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support, wherein at least one of the photosensitive layers comprises two or more unit layers having different sensitivities, and among all of said unit layers, the unit layer highest in sensitivity contains at least one of (a) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a compound that can produce a development inhibitor or its precursor when oxidized, and (b) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a precursor of a compound that can produce a development inhibitor or its precursor when oxidized, with the amount of said at least one of the compounds (a) and (b) being at most 1 mol% based on the amount of the silver halide in said unit layer highest in sensitivity.
Claim 3
Dependent Claim
149 words
A silver halide color photographic material of claim 1, wherein the compounds (a) capable of producing, by the reaction of the compound with a developing agent oxidized product, a compound that can produce a development inhibitor or its precursor when oxidized, and the compounds (b) capable of producing, by the reaction of the compound with a developing agent oxidized product, a precursor of a compound that can produce a development inhibitor or its precursor when oxidized comprise a compound having the general formula (I): A-B-D (I) wherein A represents a coupler residue that will split the linkage between A and B by the reaction with a developing agent oxidized product, B represents a group that will split the linkage between B and D when the linkage with A is split and then B is oxidized or its precursor is oxidized, and D represents a development inhibitor or its precursor.
Claim 4
Dependent Claim
150 words
A silver halide color photographic material of claim 2, wherein B in the general formula (I) represents the compound of the general formula (B-1): ##STR15## wherein the mark * indicates the position to be attached to A and the mark ** indicates the position to be attached to D, B 1 represents a joining group that will split from RED after the linkage between B 1 and A has split, B 2 represents a group that will split from RED when reacting with an alkali, hydroxylamine or sulfite ion that is present when development is carried out, RED represents a group that will have an oxidizable structure only after the linkages between RED and B 1 and between RED and B 2 have split and will split from D which has the same meaning as defined in formula (I)) when oxidized, and v and w are each 0 or 1.
Claim 5
Dependent Claim
166 words
A silver halide color photographic material of claim 3, wherein the group represented by RED has the following formula (R-1): ***--P--X--Y.sub.n Q-**** (R-1) wherein the mark *** indicates the position to be attached to A--(B 1 ) v --, and the mark **** indicates the position to be attached to B 2 , or a hydrogen atom, and P and Q each represent an oxygen atom or a substituted or unsubstituted imino group, at least one of X in a quantity of n and y in a quantity of n represents a methylene group having, as a substituent, D, which has the same meaning as defined in the general formula (I), and the remaining X and Y may be the same or different and each represents a substituted or unsubstituted methine group or a nitrogen atom, and n is an integer of from 1 to 3, two substituents of any of which P, X, Y and Q may be divalent groups to form a ring structure.
Claim 6
Dependent Claim
62 words
A silver halide color photographic material of claim 2, wherein D comprises a compound represented by the formula (D-1): ******--B.sub.1q DI (D--1) wherein the mark ****** indicates the position to be attached to B, and B 1 has the same meaning as defined for the general formula (B-1) in claim 3, q is 0 or 1 and DI represents a development inhibitor.
Claim 7
Dependent Claim
109 words
A silver halide color photographic material of claim 3, wherein B 1 represents a group having the following general formula: ##STR16## wherein the mark * indicates the position to be attached to A, and the mark ***** indicates the position to be attached to RED, W represents an oxygen atom or a group ##STR17## in which R 3 represents an organic substituent, R 1 and R 2 may be the same or different and each represents a hydrogen atom or a substituent, t is 1 of 2, and two or any of which R 1 , R 2 and R 3 may join together to form a ring structure.
Claim 8
Dependent Claim
26 words
A silver halide color photographic material of claim 3, wherein B 1 represents a group that causes the split-off reaction using an intramolecular nucleophilic substitution reaction.
Claim 9
Dependent Claim
60 words
A silver halide color photographic material of claim 3, wherein B 1 represents a group having the following general formula: ##STR18## wherein the mark * indicates the position to be attached to A, and the mark ***** indicates the position to be attached to to RED, and R 4 and R 5 each represents a hydrogen atom or a substituent.
Claim 10
Dependent Claim
17 words
A silver halide color photographic material of claim 3, wherein v is 0 and w is 0.
Claim 11
Dependent Claim
54 words
A silver halide color photographic material of claim 5, wherein DI is selected from the group consisting of a tetrazolylthio group, a 1- or 2-benzoytriazolyl group, a 1-benzoindazolyl group, a benzoimidazolylthio group, a benzoxazolylthio group, an imidazolythio group, an oxazolylthio group, a triazolylthio group, an oxadiazolylthio group, a thiadiazolylthio group and an N-aryl-N-(1,2,3,4-thiatriazol-5-yl)amino group.
Claim 12
Dependent Claim
13 words
A silver halide color photographic material of claim 5, wherein q is 0.
Claim 13
Dependent Claim
130 words
A silver halide color photographic material of claim 2, wherein said compounds (a) and (b) are selected from the group consisting of those represented by the following formula (II) or (III): wherein A has the same meaning as defined in claim 2, DI represents a development inhibitor, Q 1 represents a hydroxyl group or a sulfonamido group, R 6 represents a hydrogen atom or a substituent, and r is an integer of from 1 to 3, and if r is 2 or over, R 6 's may be the same or different, and if two R 6 's represent substituents on adjacent carbon atoms, they may be divalent groups to form a benzonorbornene, a chroman, an indole, a benzothiopene, a quinoline, a benzofuran, a 2,3-dihydrobenzofuran, an indane, or an indene.
Claim 14
Dependent Claim
41 words
A silver halide color photographic material of claim 1, wherein said amount of the at least one of the compounds (a) and (b) is 0.001-0.5 mol% based on the amount of the silver halide in the unit layer highest in sensitivity.
Claim 15
Dependent Claim
41 words
A silver halide color photographic material of claim 13, wherein said amount of the at least one of the compounds (a) and (b) is 0.005-0.2 mol% based on the amount of the silver halide in the unit layer highest in sensitivity.
Claim 16
Dependent Claim
41 words
A silver halide color photographic material of claim 14, wherein said amount of the at least one of the compounds (a) and (b) is 0.005-0.1 mol% based on the amount of the silver halide in the unit layer highest in sensitivity.
References Cited (Backward Citations)
US3227554A
Cited
US3379529A
Cited
US4095984A
Cited
US4490459A
Cited
US4500633A
Cited
US4524130A
Cited
US4618571A
Cited
US4770982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |