Patent US2630288A successfully refreshed from Google Patents.
Patent US5028510A successfully refreshed from Google Patents.
US5028510A
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Silver halide photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1990-05-18
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Granted: 1991-07-02
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Expires: 2010-05-18
Abstract
Abstract A silver halide photographic material having at least one hydrophilic colloid layer, wherein at least one hydrophilic colloid layer is a silver halide photographic emulsion layer, and at least one hydrophilic colloid layer contains a compound represented by the general formula (I): ##STR1## wherein A 1 and A 2 both represent hydrogen atoms, or one of them represents a hydrogen atom and the other represents a sulfonyl group or ##STR2## (wherein R 0 represents an alkyl group, an alkenyl group, an aryl group, an alkoxy group or an aryloxy group, and l 1 represents 1 or 2); G represents ##STR3## (wherein m 1 represents 1 or 2), --SO 2 --, --SO--, ##STR4## (wherein R 1 represents an alkoxy group or an aryloxy group), a thiocarbonyl group or an iminomethylene group; X represents a substituted or unsubsituted aliphatic group, a substituted or unsubstituted aromatic group or a substituted or unsubstituted heterocyclic group; Y represents a divalent organic group; and Het represents a nitrogen containing heterocyclic aromatic group.
Inventors
- 👤 Hisashi Okamura
- 👤 Takahiro Goto
- 👤 Kazonobu Katoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:02
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/485; G03C1/48538; G03C1/48546; G03C1/48561; G03C1/06; G03C1/061
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
176 words
A silver halide photographic material having at least one hydrophilic colloid layer, wherein at least one hydrophilic colloid layer is a silver halide photographic emulsion layer, and at least one hydrophilic colloid layer contains a compound represented by the general formula (I): ##STR35## wherein A 1 and A 2 both represent hydrogen atoms, or one of them represents a hydrogen atom and the other represents a sulfonyl group or ##STR36## (wherein R 0 represents an alkyl group, an alkenyl group, an aryl group, an alkoxy group or an aryloxy group, and l 1 represents 1 or 2); G represents ##STR37## (wherein m 1 represents 1 or 2), --SO 2 --, --SO--, ##STR38## (wherein R 1 represents an alkoxy group or an aryloxy group), a thiocarbonyl group or an iminomethylene group; X represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aromatic group or a substituted or unsubstituted heterocyclic group; Y represents a substituted or unsubstituted aliphatic group or a substituted or unsubstituted aromatic group; and Het represents a neutral nitrogen containing heterocyclic aromatic group.
Claim 2
Dependent Claim
176 words
A silver halide photographic material having at least one hydrophilic colloid layer, wherein at least one hydrophilic colloid layer is a silver halide photographic emulsion layer, and at least one hydrophilic colloid layer contains a compound represented by the general formula (I): ##STR35## wherein A 1 and A 2 both represent hydrogen atoms, or one of them represents a hydrogen atom and the other represents a sulfonyl group or ##STR36## (wherein R 0 represents an alkyl group, an alkenyl group, an aryl group, an alkoxy group or an aryloxy group, and l 1 represents 1 or 2); G represents ##STR37## (wherein m 1 represents 1 or 2), --SO 2 --, --SO--, ##STR38## (wherein R 1 represents an alkoxy group or an aryloxy group), a thiocarbonyl group or an iminomethylene group; X represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aromatic group or a substituted or unsubstituted heterocyclic group; Y represents a substituted or unsubstituted aliphatic group or a substituted or unsubstituted aromatic group; and Het represents a neutral nitrogen containing heterocyclic aromatic group.
Claim 3
Dependent Claim
19 words
A silver halide photographic material as in claim 1, wherein both A 1 and A 2 are hydrogen atoms.
Claim 4
Dependent Claim
17 words
A silver halide photographic material as in claim 1, wherein G in general formula (I) represents ##STR39##
Claim 5
Dependent Claim
25 words
A silver halide photographic material as in claim 1, wherein Y in general formula (I) represents a substituted or unsubstituted methylene, ethylene or trimethylene group.
Claim 6
Dependent Claim
30 words
A silver halide photographic material as in claim 1, wherein Het in general formula (I) is a group derived from an imidazole ring, a pyridine ring or a quinoline ring.
Claim 7
Dependent Claim
23 words
A silver halide photographic material as in claim 1, wherein Het in general formula (I) is a group derived from an imidazole ring.
Claim 8
Dependent Claim
31 words
A silver halide photographic material as in claim 1, wherein at least one of Het, X and Y in general formula (I) contains a group which promotes adsorption on silver halide.
Claim 9
Dependent Claim
33 words
A silver halide photographic material as in claim 1, wherein the compound of general formula (I) is present in an amount of 1×10 -6 to 5×10 -2 mol per mol of silver halide.
Claim 10
Dependent Claim
33 words
A silver halide photographic material as in claim 1, wherein the compound of general formula (I) is present in an amount of 1×10 -5 to 1×10 -2 mol per mol of silver halide.
Claim 11
Dependent Claim
22 words
A silver halide photographic material as in claim 1, wherein Y in general formula (I) represents a substituted or unsubstituted alkylene group.
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) | 1994-07-01 | 1994-12-31 | 1995-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-01 | 1998-12-31 | 1999-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-01 | 2002-12-31 | 2003-07-02 | $7700.00 | Window Closed / Lapsed |