Patent US4334010A successfully refreshed from Google Patents.
US4334010A
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Silver halide photographic light-sensitive element
Assignee: Fujifilm Holdings Corp
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Filing: 1981-07-17
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Granted: 1982-06-08
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Expires: 2001-07-17
Abstract
Abstract A silver halide photographic light-sensitive element is described comprising a support having thereon at least one silver halide emulsion layer, wherein at least one compound represented by formula (I) is incorporated in the silver halide emulsion layer or in another hydrophilic colloid layer: ##STR1## wherein X represents a hydroxy group or a group represented by ##STR2## wherein R 2 and R 3 (which may be the same or different) each reprsents hydrogen, an alkyl group, or an aryl group; R 1 represents a sulfur-containing saturated heterocyclic group or a group represented by -A-S-B, wherein A represents an alkylene group and B represents hydrogen, an alkyl group, or an aryl group; and Z represents an atomic group forming a 5-membered or 6-membered unsubstituted or substituted carbocyclic ring. In the silver halide photographic light-sensitive element, the so-called "latent image fading" phenomenon is prevented without accompanying degradation of other photograhic properties.
Inventors
- 👤 Hiroyuki Mifune
- 👤 Shoji Ishiguro
- 👤 Tadao Shishido
- 👤 Yoshiharu Fuseya
- 👤 Teruaki Tsujikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:26
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/22
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
117 words
A silver halide photographic light-sensitive element comprising a support having thereon at least one silver halide emulsion layer, wherein at least one compound represented by formula (I) is incorporated in the silver halide emulsion layer or in another hydrophilic colloid layer: ##STR11## wherein X represents a hydroxy group or a group represented by ##STR12## wherein R 2 and R 3 each repesents hydrogen, an alkyl group, or an aryl group; R 1 represents a sulfur-containing saturated heterocyclic group or a group represented by -A-S-B, wherein A represents an alkylene group and B represents hydrogen, an alkyl group, or an aryl group; and Z represents an atomic group forming a 5-membered or 6-membered unsubstituted or substituted carbocyclic ring.
Claim 2
Dependent Claim
117 words
A silver halide photographic light-sensitive element comprising a support having thereon at least one silver halide emulsion layer, wherein at least one compound represented by formula (I) is incorporated in the silver halide emulsion layer or in another hydrophilic colloid layer: ##STR11## wherein X represents a hydroxy group or a group represented by ##STR12## wherein R 2 and R 3 each repesents hydrogen, an alkyl group, or an aryl group; R 1 represents a sulfur-containing saturated heterocyclic group or a group represented by -A-S-B, wherein A represents an alkylene group and B represents hydrogen, an alkyl group, or an aryl group; and Z represents an atomic group forming a 5-membered or 6-membered unsubstituted or substituted carbocyclic ring.
Claim 3
Dependent Claim
32 words
A silver halide photographic light-sensitive elements as in claim 1, wherein the alkyl group represented by R 2 or R 3 is an alkyl group having from 1 to 5 carbon atoms.
Claim 4
Dependent Claim
25 words
A silver halide photographic light-sensitive element as in claim 1, wherein the aryl group represented by R 2 or R 3 is a phenyl group.
Claim 5
Dependent Claim
20 words
A silver halide photographic light-sensitive element as in claim 1, wherein one of R 2 and R 3 is hydrogen.
Claim 6
Dependent Claim
56 words
A silver halide photographic light-sensitive element as in claim 1, wherein the sulfur-containing saturated heterocyclic group represented by R 1 is a 5-membered or 6-membered heterocyclic group containing at least one sulfur atom as a ring constituting member and connecting to the carbocyclic ring in formula (I) through a carbon atom adjacent to the sulfur atom.
Claim 7
Dependent Claim
28 words
A silver halide photographic light-sensitive element as in claim 1, wherein the sulfur-containing saturated heterocyclic group represented by R 1 is a 2-tetrahydrothienyl group or a tetrahydrothiopyranyl group.
Claim 8
Dependent Claim
42 words
A silver halide photographic light-sensitive element as in claim 1, wherein the sulfur-containing saturated heterocyclic group represented by R 1 is substituted with one or more substituents selected from a methyl group, an ethyl group, a methoxy group, and an acetamido group.
Claim 9
Dependent Claim
22 words
A silver halide photographic light-sensitive element as in claim 1, wherein A in the group represented by -A-S-B is a methylene group.
Claim 10
Dependent Claim
28 words
A silver halide photographic light-sensitive element as in claim 1, wherein the alkyl group represented by B is an alkyl group having from 1 to 12 carbon atoms.
Claim 11
Dependent Claim
21 words
A silver halide photographic light-sensitive element as in claim 1, wherein the aryl group represented by B is a phenyl group.
Claim 12
Dependent Claim
30 words
A silver halide photographic light-sensitive element as in claim 1, wherein the group represented by -A-S-B is a mercaptoethyl group, an ethylthiomethyl group, a dodecylthiomethyl group, or a phenylthiomethyl group.
Claim 13
Dependent Claim
19 words
A silver halide photographic light-sensitive element as in claim 1, wherein R 1 is a sulfur-containing saturated heterocyclic group.
Claim 14
Dependent Claim
28 words
A silver halide photographic light-sensitive element as in claim 1, wherein the 5-membered or 6-membered carbocyclic ring formed with Z is a cyclopentene ring or a cyclohexene ring.
Claim 15
Dependent Claim
36 words
A silver halide photographic light-sensitive element as in claim 1, wherein the 5-membered or 6-membered carbocyclic ring formed by Z is substituted with one or more substituents selected from an alkyl group and an aryl group.
Claim 16
Dependent Claim
33 words
A silver halide photographic light-sensitive element as in claim 14, wherein the alkyl group substituted on the 5-membered or 6-membered carbocyclic ring is an alkyl group having from 1 to 5 carbon atoms.
Claim 17
Dependent Claim
47 words
A silver halide photographic light-sensitive element as in claim 14, wherein the aryl group substituted on the 5-membered or 6-membered carbocyclic ring is a phenyl group which can be substituted with one or more substituents selected from an alkyl group, an alkoxy group, and a halogen atom.
Claim 18
Dependent Claim
22 words
A silver halide photographic light-sensitive element as in claim 15, wherein the alkyl group is a methyl group or an ethyl group.
Claim 19
Dependent Claim
37 words
A silver halide photographic light-sensitive element as in claim 16, wherein the aryl group is a phenyl group, a p-tolyl group, a p-iso-propylphenyl group, a p-methoxyphenyl group, a 3,4-dimethoxyphenyl group, a 3,4,5-trimethoxyphenyl group, or a 3,4-dichlorophenyl group.
Claim 20
Dependent Claim
29 words
A silver halide photographic light-sensitive element as in claim 1, wherein the compound represented by formula (I) is incorporated in the element in the form of a salt thereof.
Claim 21
Dependent Claim
21 words
A silver halide photographic light-sensitive element as in claim 19, wherein the salt is a hydrochloride, a sulfate, or an acetate.
Claim 22
Dependent Claim
36 words
A silver halide photographic light-sensitive element as in claim 1, 5, 6, 7, 8, 9, 10, 11, 12, 19, or 20, wherein the compound represented by formula (I) is incorporated into a silver halide emulsion layer.
Claim 23
Dependent Claim
34 words
A silver halide photographic light-sensitive element as in claim 1, 5, 6, 7, 8, 9, 10, 11, 12, 19, or 20, wherein the compound represented by formula (I) is incorporated into a light-insensitive layer.
Claim 24
Dependent Claim
29 words
A silver halide photographic light-sensitive element as in claim 21, wherein the amount of the compound represented by formula (I) is from 0.05 mg/mol Ag to 100 mg/mol Ag.
Claim 25
Dependent Claim
28 words
A silver halide photographic light-sensitive element as in claim 21, wherein the amount of compound represented by formula (I) is from 0.1 mg/mol Ag to 50 mg/mol Ag.
Claim 26
Dependent Claim
24 words
A silver halide photographic light-sensitive element as in claim 1, wherein a silver halide emulsion of the silver halide emulsion layer is chemically sensitized.
Claim 27
Dependent Claim
24 words
A silver halide photographic light-sensitive element as in claim 1, wherein a silver halide emulsion of the silver halide emulsion layer is spectrally sensitized.
Claim 28
Dependent Claim
23 words
A silver halide photographic light-sensitive element as in claim 1, wherein the silver halide emulsion layer further contains a color image forming coupler.
References Cited (Backward Citations)
US3165410A
Cited
US3447926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |