US5051345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide reversal photographic light-sensitive material
Assignee: Konica Minolta Inc
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Filing: 1990-02-08
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Granted: 1991-09-24
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Expires: 2010-02-08
Abstract
Abstract A silver halide reversal photographic light-sensitive material is disclosed, which is improved in color reproducibility and gradation. The photographic material comprises a support having thereon a photographic component layers including at least two silver halide layers and a DIR layer. At least one of the emulsion layers comprises at least two silver halide emulsion layers which are substantially the same in color-sensitivity and different from each other in speed. The DIR layer contains a DIR compound and a silver halide emulsion and does not substantially contribute for any image formation.
Inventors
- 👤 Hideaki Haraga
- 👤 Masaru Iwagaki
- 👤 Atsuo Ezaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:55
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3029; G03C2007/3034; G03C7/305; G03C7/30541
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
A silver halide reversal photographic light-sensitive material comprising a support having thereon photographic component layers including a first silver halide emulsion layer comprising at least two silver halide emulsion sub-layers which are substantially the same in color sensitivity and different in speed from one another, said first silver halide emulsion layer being red or green sensitive, and a second silver halide emulsion layer having a color sensitivity different from that of said first silver halide emulsion layer, said second silver halide emulsion layer being a DIR layer which comprises a DIR compound and a silver halide emulsion, said DIR layer not substantially contributing to image formation, said DIR layer being adjacent, or adjacent with the interposition of an interlayer to said first silver halide emulsion layer, said DIR layer being closer to said support than said first silver halide emulsion layer.
Claim 2
Dependent Claim
141 words
A silver halide reversal photographic light-sensitive material comprising a support having thereon photographic component layers including a first silver halide emulsion layer comprising at least two silver halide emulsion sub-layers which are substantially the same in color sensitivity and different in speed from one another, said first silver halide emulsion layer being red or green sensitive, and a second silver halide emulsion layer having a color sensitivity different from that of said first silver halide emulsion layer, said second silver halide emulsion layer being a DIR layer which comprises a DIR compound and a silver halide emulsion, said DIR layer not substantially contributing to image formation, said DIR layer being adjacent, or adjacent with the interposition of an interlayer to said first silver halide emulsion layer, said DIR layer being closer to said support than said first silver halide emulsion layer.
Claim 3
Dependent Claim
39 words
The material of claim 1 wherein said first silver halide emulsion layer consists of two silver halide emulsion sub-layers and the difference in the speeds of said two sub-layers is from 0.2 to 1.5 in terms of Δlog E.
Claim 4
Dependent Claim
18 words
The material of claim 2 wherein said difference is from 0.3 to 1.0 in terms of Δlog E.
Claim 5
Dependent Claim
45 words
The material of claim 1 wherein a development inhibitor or a compound capable of releasing a development inhibitor is split off from said DIR compound upon reaction with the oxidized product of a color developing agent and has a diffusibility of not less than 0.34.
Claim 6
Dependent Claim
13 words
The material of claim 4 wherein said diffusibility is not less than 0.40.
Claim 7
Dependent Claim
86 words
The material of claim 1 wherein said DIR compound is represented by the following Formula D-1 A-(Y)m wherein A is a coupler residue and Y is a development inhibiting group or a group capable of releasing a development inhibiting group, in which said group represented by Y is bonded in the coupling position of coupler residue and capable of being split off from said coupler residue upon reaction with the oxidized product of a color developing agent, and m is an integer of 1 or 2.
Claim 8
Dependent Claim
36 words
The material of claim 1 wherein a coating weight of said silver halide emulsion contained in said DIR layer is within the range of from 0.01 g/m 2 to 3.0 g/m 2 in terms of silver.
Claim 9
Dependent Claim
26 words
The material of claim 7 wherein said coating weight is within the range of from 0.05 g/m 2 to 1.5 g/m 2 in terms of silver.
References Cited (Backward Citations)
GB2013356A
Cited
US4388401A
Cited
EP0107817A2
Cited
US4608334A
Cited
US4725529A
Cited
FR2591355A1
Cited
US4729943A
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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) | 1994-09-23 | 1995-03-25 | 1995-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-23 | 1999-03-25 | 1999-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-23 | 2003-03-25 | 2003-09-24 | $7700.00 | Window Closed / Lapsed |