Patent US5066576A successfully refreshed from Google Patents.
US5066576A
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Silver halide color photographic material
Assignee: Fujifilm Corp
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Filing: 1990-09-18
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Granted: 1991-11-19
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Expires: 2010-09-18
Abstract
Abstract A silver halide color photographic material comprising a support having thereon at least one sensitive silver halide emulsion layer, wherein the emulsion layer contains a coupler represented by the following general formula (I) ##STR1## wherein X represents a non-metallic atomic group required for forming a heterocyclic ring together with a residue of the formula ##STR2## Y represents a group which is eliminated by coupling and has substantially no photographic effect and Z represents an electron attractive group (a substituent group having a value of at least 0.2 in terms of Hammett's σm substituent constant).
Inventors
- 👤 Seiji Ichijima
- 👤 Naoki Saito
- 👤 Keiji Mihayashi
- 👤 Yoshio Ishii
- 👤 Akira Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:46
CPC Classifications
C; C07; C07D; C07D403/00; C07D403/02; C07D403/06; C07D413/00; C07D413/02; C07D413/06; G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30535
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
99 words
A silver halide color photographic material comprising a support having thereon at least one light sensitive silver halide emulsion layer, wherein said emulsion layer contains a coupler represented by formula (V): ##STR156## wherein: Y represents a group which is eliminated by coupling and has substantially no photographic effect, X 6 X 7 each represent a methine group or a nitrogen atom, R represents an alkyl group, an aryl group or a heterocyclic ring, Ar represents an aryl group, and X 6 and X 7 are not bonded to each other through their substituent groups to form a condensed ring.
Claim 2
Dependent Claim
99 words
A silver halide color photographic material comprising a support having thereon at least one light sensitive silver halide emulsion layer, wherein said emulsion layer contains a coupler represented by formula (V): ##STR156## wherein: Y represents a group which is eliminated by coupling and has substantially no photographic effect, X 6 X 7 each represent a methine group or a nitrogen atom, R represents an alkyl group, an aryl group or a heterocyclic ring, Ar represents an aryl group, and X 6 and X 7 are not bonded to each other through their substituent groups to form a condensed ring.
Claim 3
Dependent Claim
31 words
The silver halide color photographic material as in claim 1, wherein the group represented by Y is an aryloxy group, 2,4-dioxo-1,3-imidazolidin-3-yl group, 2,4-dioxo-1,3-oxazolidin-3-yl group, 3,5-dioxo-1,2,4-triazolidin-4-yl group, 1-pyrazolyl group or 1-imidazolyl group.
Claim 4
Dependent Claim
38 words
The silver halide color photographic material as in claim 1, wherein said coupler is present in an amount of about 1×10 -6 to 1.0 mol per mol of silver contained in the same layer or an adjacent layer.
Claim 5
Dependent Claim
22 words
The silver halide color photographic material as in claim 1, wherein R is an alkyl group having 1 to 32 carbon atoms.
Claim 6
Dependent Claim
26 words
The silver halide color photographic material as in claim 1, wherein R is a substituted or an unsubstituted aryl group having 6 to 10 carbon atoms.
Claim 7
Dependent Claim
28 words
The silver halide color photographic material as in claim 1, wherein R is a saturated or an unsaturated substituted or unsubstituted heteroatom containing three to six-membered heterocyclic groups.
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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) | 1994-11-18 | 1995-05-20 | 1995-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-18 | 1999-05-20 | 1999-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-18 | 2003-05-20 | 2003-11-19 | $7700.00 | Window Closed / Lapsed |