Patent US5362626A successfully refreshed from Google Patents.
US5362626A
Expired / Lapsed
US
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Silver halide photographic light-sensitive material
Assignee: Konica Minolta Inc
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Filing: 1993-09-29
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Granted: 1994-11-08
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Expires: 2013-09-29
Abstract
Abstract Disclosed is a silver halide photographic light-sensitive material comprising a support and having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains a gelatin comprising an iron ion of 0.5 ppm to 5 ppm and α-constituent having weight-average molecular weight of 80,000 to 120,000 in an amount of not less than 40% by weight of the gelatin.
Inventors
- 👤 Takaaki Kojima
- 👤 Mitsuhiro Okumura
- 👤 Takahiko Nojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:57
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/047; G03C1/06; G03C1/08; G03C1/09
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
74 words
A silver halide photographic light-sensitive material comprising a support and having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains silver chloro-bromide grains having a silver chloride content of at least 95 mol % and a gelatin comprising an iron ion of 0.5 ppm to 5 ppm and at least 40% by weight, based on said gelatin, of an α-constituent having weight-average molecular weight of 80,000 to 120,000.
Claim 2
Dependent Claim
74 words
A silver halide photographic light-sensitive material comprising a support and having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains silver chloro-bromide grains having a silver chloride content of at least 95 mol % and a gelatin comprising an iron ion of 0.5 ppm to 5 ppm and at least 40% by weight, based on said gelatin, of an α-constituent having weight-average molecular weight of 80,000 to 120,000.
Claim 3
Dependent Claim
35 words
The silver halide photographic light-sensitive material of claim 1, wherein said gelatin comprises α-constituent having weight-average molecular weight of 80,000 to 120,000 in an amount of not less than 45% by weight of the gelatin.
Claim 4
Dependent Claim
34 words
The silver halide photographic light-sensitive material of claim 1, wherein said gelatin comprises a high molecular weight constituent of the gelatin in an amount of not more than 3% by weight of the gelatin.
Claim 5
Dependent Claim
22 words
The silver halide photographic light-sensitive material of claim 1, wherein the gelatin has the jelly strength of not less than 250 g.
Claim 6
Dependent Claim
30 words
The silver halide photographic light-sensitive material of claim 1, wherein the gelatin has a calcium content in an amount of not more than 6000 ppm by weight of the gelatin.
Claim 7
Dependent Claim
30 words
The silver halide photographic light-sensitive material of claim 1, wherein the gelatin has a calcium content in an amount of not more than 5000 ppm by weight of the gelatin.
Claim 8
Dependent Claim
26 words
The silver halide photographic light-sensitive material of claim 1, wherein the silver halide emulsion layer comprising a sulfur sensitization process and then, a gold sensitization process.
Claim 9
Dependent Claim
34 words
The silver halide photographic light-sensitive material of claim 7, wherein the sulfur sensitization is employed by the compounds selected from the group consisting of thiosulfates, allylthiocarbamide, thiourea, allylisothiocyanate, cystine, p-toluenesulfonate, rhodanine and inorganic sulfur.
Claim 10
Dependent Claim
34 words
The silver halide photographic light-sensitive material of claim 8, wherein the addition amount of the compounds is within the range of 10 -7 mol to 10 -3 mol per mol of a silver halide.
Claim 11
Dependent Claim
34 words
The silver halide photographic light-sensitive material of claim 8, wherein the addition amount of the compounds is within the range of 10 -6 mol to 10 -5 mol per mol of a silver halide.
Claim 12
Dependent Claim
35 words
The silver halide photographic light-sensitive material of claim 7, wherein the gold sensitization is employed by the chelate complex of the compound selected from the group consisting of chloroauric acid, gold sulfide and gold thiosulfate.
Claim 13
Dependent Claim
31 words
The silver halide photographic light-sensitive material of claim 11, wherein a chelating agent of said chelate complex is selected from the group consisting of dimethyl rhodanine, thiocyanic acid, mercaptotetrazole and mercaptotriazole.
Claim 14
Dependent Claim
90 words
The silver halide photographic light-sensitive material of claim 1, comprising an anti-foggant represented by Formula I: ##STR26## wherein Ar represents an aromatic group, R 1 represents --OR 2 , --N(R 3 )SO 2 R 4 or --COOM 2 , wherein R 2 is a hydrocarbon group having two or more carbons, R 3 is a hydrogen atom or a hydrocarbon group, R 4 is a hydrocarbon group, M 1 and M 2 each represent a hydrogen atom, an alkali metal atom, an alkaline earth metal atom or an ammonium group.
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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) | 1997-11-07 | 1998-05-09 | 1998-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-07 | 2002-05-09 | 2002-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-07 | 2006-05-09 | 2006-11-08 | $7700.00 | Window Closed / Lapsed |