Patent US4600688A successfully refreshed from Google Patents.
US4600688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide color photographic light-sensitive material
Assignee: Konica Minolta Inc
•
Filing: 1985-02-08
•
Granted: 1986-07-15
•
Expires: 2005-02-08
Abstract
Abstract A silver halide color photographic light-sensitive material whose magenta dye-forming layer forms a magenta dye image having an absorption maximum from 550 nm to 560 nm and an advantageous absorption spectrum for color reproduction is provided by a silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein the at least one silver halide emulsion layer contains a 1H-pyrazolo[3,2-C]-s-triazole-type magenta coupler, and the above silver halide emulsion layer containing the magenta coupler and/or a silver halide emulsion layer having substantially the same color sensitivity as does the above silver halide emulsion layer containing the magenta coupler contains a pyrazolone-type magenta coupler.
Inventors
- 👤 Satoshi Kawakatsu
- 👤 Noritaka Nakayama
- 👤 Katsunori Katoh
- 👤 Kaoru Shinozaki
- 👤 Toshihiko Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:24
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/3805
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
78 words
In a silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, said silver halide color photographic light-sensitive material wherein said at least one silver halide emulsion layer comprises a 1H-pyrazolo[3,2-C]-s-triazole-type magenta coupler, and said silver halide emulsion layer containing said magenta coupler and/or a silver halide emulsion layer having substantially the same color sensitivity as said silver halide emulsion layer containing said magenta coupler comprises a pyrazolone-type magenta coupler.
Claim 2
Dependent Claim
78 words
In a silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, said silver halide color photographic light-sensitive material wherein said at least one silver halide emulsion layer comprises a 1H-pyrazolo[3,2-C]-s-triazole-type magenta coupler, and said silver halide emulsion layer containing said magenta coupler and/or a silver halide emulsion layer having substantially the same color sensitivity as said silver halide emulsion layer containing said magenta coupler comprises a pyrazolone-type magenta coupler.
Claim 3
Dependent Claim
64 words
The silver halide color photographic light-sensitive material of claim 1, wherein said pyrazolone-type magenta coupler has Formula [II] ##STR101## wherein R 4 is an aryl group, R 5 is an alkyl or aryl group, Z is a hydrogen atom or a group that can be split off by the coupling reaction thereof with the oxidized product of an aromatic primary amine color developing agent.
Claim 4
Dependent Claim
100 words
The silver halide color photographic light-sensitive material of claim 1, wherein said 1H-pyrazolo[3,2-C]-s-triazole-type magenta coupler has Formula [I] ##STR102## wherein R 1 is an alkyl or aryl group, R 2 is a monovalent organic group, R 3 is an alkyl, aryl or heterocyclic group, Y is a carbonyl or sulfonyl group, X is a hydrogen atom or a group that can be split off by the coupling reaction thereof with the oxidized product of an aromatic primary amine color developing agent, m is an integer of from zero to 5, and n is an integer of from zero to 4.
Claim 5
Dependent Claim
41 words
The silver halide color photographic light-sensitive material of claim 3, wherein X of Formula [I] represents a halogen atom represents a group capable of splitting off through a coupling reaction with the oxidized product of an aromatic primary amine developing agent.
Claim 6
Dependent Claim
26 words
The silver halide color photographic light-sensitive material of claim 3, wherein R 1 of Formula [I] represents an alkyl group having one to eight carbon atoms.
Claim 7
Dependent Claim
36 words
The silver halide color photographic light-sensitive material of claim 3, wherein R 2 of Formula [I] represents a halogen atom, an alkoxy group, an alkyl group, a nitro group, an alkoxycarbonyl group or a cyano group.
Claim 8
Dependent Claim
27 words
The silver halide color photographic light-sensitive material of claim 3, wherein the alkyl group represented by R 3 of Formula [I] has 4 to 32 carbon atoms.
Claim 9
Dependent Claim
54 words
The silver halide color photographic light-sensitive material of claim 2, wherein the group to be splitted off by a coupling reaction with the oxidized product of the aromatic primary amine developing agent said group represented by Z in Formula [I] is a halogen atom, an aryloxy group, an arylthio group or an alkylthio group.
Claim 10
Dependent Claim
75 words
The silver halide color photographic light-sensitive material of claim 1, wherein at least one of the silver halide emulsion layers comprises a high-speed emulsion layer located far from the support and a low-speed emulsion layer located near the support, both of which are substantially identical in the color sensitivity, and the former emulsion layer contains the 1H-pyrazole[3,2C]-s-triazole-type magenta coupler and the pyrazolone-type magenta coupler and the latter emulsion layer contains the 1H-pyrazolo [3,2C]-s-triazole-type magenta coupler.
Claim 11
Dependent Claim
70 words
The silver halide color photographic light-sensitive material of claim 1, wherein at least one of the silver halide emulsion layers comprises a high-speed emulsion layer located far from the support and a low-speed emulsion layer located near the support, both of which are substantially identical in the color sensitivity, and the former emulsion layer contains the 1H-pyrazole [3,2-C]-s-triazole-type magenta coupler and the latter emulsion layer contains the pyrazolone-type magenta coupler.
Claim 12
Dependent Claim
24 words
The silver halide color photographic light-sensitive material of claim 1, wherein the silver halide emulsion layers substantially identical in the color sensitivity are green-sensitive.
Claim 13
Dependent Claim
37 words
The silver halide color photographic light-sensitive material of claim 2, wherein Z of Formula [I] represents a group capable of splitting off through a coupling reaction with the oxidized product of an aromatic primary amine developing agent.
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) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |