US5155015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1992-03-27
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Granted: 1992-10-13
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Expires: 2012-03-27
Abstract
Abstract A silver halide photographic material contains in a hydrophilic colloid layer a 4-arylazooxazoline-5-one compound or/and a 2-arylazo-3-butene-4-olide compound in the form of a dispersion of fine solid particles or a composition with an oil or/and a polymer latex. The compounds not only can selectively color a particular layer alone but also can be speedily decolorized and/or eluted in the course of development processing. In addition, they have no undesirable effects on photographic characteristics.
Inventors
- 👤 Yoshihiro Jimbo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:30
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/831
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
152 words
A silver halide photographic material comprising at least one compound represented by the following general formula (I): ##STR9## wherein X represents a nitrogen atom or a methine group; R 1 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclyl group; R 2 , R 3 , R 4 , R 5 and R 6 each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, --OR 7 , --COOR 7 , --COR 7 , --CONR 7 R 8 , --SO 2 NR 7 R 8 , --NR 7 R 8 , --SO 2 NHCOR 7 , --SO 2 NHSO 2 R 7 , --CONHCOR 7 , --CONHSO 2 R 7 , --N(R 7 )SO 2 R 8 , or --N(R 7 )COR 8 ; and R 7 and R 8 each represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclyl group.
Claim 2
Dependent Claim
152 words
A silver halide photographic material comprising at least one compound represented by the following general formula (I): ##STR9## wherein X represents a nitrogen atom or a methine group; R 1 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclyl group; R 2 , R 3 , R 4 , R 5 and R 6 each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, --OR 7 , --COOR 7 , --COR 7 , --CONR 7 R 8 , --SO 2 NR 7 R 8 , --NR 7 R 8 , --SO 2 NHCOR 7 , --SO 2 NHSO 2 R 7 , --CONHCOR 7 , --CONHSO 2 R 7 , --N(R 7 )SO 2 R 8 , or --N(R 7 )COR 8 ; and R 7 and R 8 each represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclyl group.
Claim 3
Dependent Claim
30 words
The silver halide photographic material as claimed in claim 1, wherein said compound represented by general formula (I) is contained in the form of a dispersion of solid fine particles.
Claim 4
Dependent Claim
34 words
The silver halide photographic material as claimed in claim 1, which has a hydrophilic colloid layer containing said compound represented by general formula (I) in the form of oil composition and/or polymer latex composition.
Claim 5
Dependent Claim
20 words
The silver halide photographic material as claimed in claim 3, wherein said hydrophilic colloid layer is a yellow filter layer.
Claim 6
Dependent Claim
16 words
The silver halide photographic material as claimed in claim 1, wherein X represents a methine group.
Claim 7
Dependent Claim
16 words
The silver halide photographic material as claimed in claim 1, wherein X represents a nitrogen atom.
References Cited (Backward Citations)
US4446222A
Cited
US5075205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-13 | 1996-04-13 | 1996-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-13 | 2000-04-13 | 2000-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-13 | 2004-04-13 | 2004-10-13 | $7700.00 | Window Closed / Lapsed |