Patent US4977069A successfully refreshed from Google Patents.
US4977069A
Expired / Lapsed
US
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Silver halide color photographic light sensitive material
Assignee: Konica Minolta Inc
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Filing: 1990-04-13
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Granted: 1990-12-11
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Expires: 2010-04-13
Abstract
Abstract A silver halide color photographic light-sensitive material comprising a support having arranged thereon at least two each of red-sensitive layers, green-sensitive layers and blue-sensitive layers, wherein, with respect to each of the red-sensitive layers, the blue-sensitive layers and the green-sensitive layers, there are not less than two silver halide layers having different sensitivities, said material satisfying the following four requirements: a. the highest blue-sensitive silver halide emulsion layer (BH) is arranged to serve as the silver halide emulsion layer in the farthest position from the support; b. the highest green-sensitive silver halide emulsion layer (GH) and the highest red-sensitive silver halide emulsion layer (RH) are interposed between the highest blue-sensitive silver halide emulsion layer (BH) and a lower blue-sensitive silver halide emulsion layer (Bh); c. the lowest green-sensitive layers (GL) and the lowest red-sensitive layer (RL) are present between the support and the lower blue-sensitive silver halide emulsion layer (Bh); and d. a non-light-sensitive hydrophilic colloidal layer is arranged adjacently to the highest blue-sensitive silver halide emulsion layer (BH) with at least one of the highest blue-sensitive silver halide emulsion layer (BH) and the colloidal layer containing fine-grain silver halide particles.
Inventors
- 👤 Toshifumi Iijima
- 👤 Yoshitaka Yamada
- 👤 Kenji Kumashiro
- 👤 Hideo Akamatsu
- 👤 Takashi Kamio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:17
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3029; G03C1/00; G03C1/005; G03C1/035; G03C2001/0357; G03C2007/3034; G03C2200/00; G03C2200/11; G03C2200/38
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
264 words
A silver halide color photographic light-sensitive material comprising a support having arranged thereon at least two red-sensitive layers, at least two green-sensitive layers and at least two blue-sensitive layers, wherein with respect to the red-sensitive layers, there are not less than two silver halide emulsion layers having different sensitivities, wherein with respect to the blue-sensitive layers, there are not less than two silver halide emulsion layers having different sensitivities, and wherein with respect to the green-sensitive layers, there are not less than two silver halide layers having different sensitivities, said halide color photographic light sensitive material satisfying the following four requirements: a. the highest blue-sensitive halide emulsion layer (BH) of said blue-sensitive layers is arranged to serve as the silver halide emulsion layer in the farthest position from said support; b. the highest green-sensitive silver halide emulsion layer (GH) of said green-sensitive layers and the highest red-sensitive silver halide emulsion layer (RH) of said red-sensitive layers are interposed between said highest blue-sensitive silver halide emulsion layer (BH) and a lower blue-sensitive silver halide emulsion layer (Bh) having a sensitivity lower than said highest blue-sensitive silver halide emulsion layer (BH); c. the lowest green-sensitive layer (GL) and the lowest red-sensitive layer (RL) are present between the support and said lower blue-sensitive silver halide emulsion layer (Bh); and d. a non-light-sensitive hydrophilic colloidal layer is arranged adjacent the surface of the highest blue-sensitive silver halide emulsion layer (BH) closer to said support, with at least one of said highest blue-sensitive silver halide emulsion layer (BH) and said colloidal layer containing substantially non-light-sensitive fine-grain silver halide particles.
Claim 2
Dependent Claim
264 words
A silver halide color photographic light-sensitive material comprising a support having arranged thereon at least two red-sensitive layers, at least two green-sensitive layers and at least two blue-sensitive layers, wherein with respect to the red-sensitive layers, there are not less than two silver halide emulsion layers having different sensitivities, wherein with respect to the blue-sensitive layers, there are not less than two silver halide emulsion layers having different sensitivities, and wherein with respect to the green-sensitive layers, there are not less than two silver halide layers having different sensitivities, said halide color photographic light sensitive material satisfying the following four requirements: a. the highest blue-sensitive halide emulsion layer (BH) of said blue-sensitive layers is arranged to serve as the silver halide emulsion layer in the farthest position from said support; b. the highest green-sensitive silver halide emulsion layer (GH) of said green-sensitive layers and the highest red-sensitive silver halide emulsion layer (RH) of said red-sensitive layers are interposed between said highest blue-sensitive silver halide emulsion layer (BH) and a lower blue-sensitive silver halide emulsion layer (Bh) having a sensitivity lower than said highest blue-sensitive silver halide emulsion layer (BH); c. the lowest green-sensitive layer (GL) and the lowest red-sensitive layer (RL) are present between the support and said lower blue-sensitive silver halide emulsion layer (Bh); and d. a non-light-sensitive hydrophilic colloidal layer is arranged adjacent the surface of the highest blue-sensitive silver halide emulsion layer (BH) closer to said support, with at least one of said highest blue-sensitive silver halide emulsion layer (BH) and said colloidal layer containing substantially non-light-sensitive fine-grain silver halide particles.
Claim 3
Dependent Claim
52 words
The silver halide color photographic light-sensitive material according to claim 1, wherein the silver halide emulsion layers are arranged onto and from support in the order of a lower red-sensitive layer, a lower green-sensitive layer, a lower blue-sensitive layer, a higher red-sensitive layer, a higher green-sensitive layer and a higher blue-sensitive layer.
Claim 4
Dependent Claim
31 words
The silver halide color photographic light-sensitive material according to claim 1, wherein the layer described in the requirement d containing fine-grain silver halide is the blue-sensitive silver halide emulsion layer (BH).
Claim 5
Dependent Claim
33 words
The silver halide color photographic light-sensitive material according to claim 1, wherein the average grain size of the fine-grain silver halide described in the requirement d is from 0.03 μm to 0.5 μm.
Claim 6
Dependent Claim
33 words
The silver halide color photographic light-sensitive material according to claim 1, wherein the average grain size of the fine-grain silver halide described in the requirement d is from 0.05 μm to 0.4 μm.
Claim 7
Dependent Claim
22 words
The silver halide color photographic light-sensitive material according to claim 1, wherein the grain distribution of the fine-grain silver halide is monodispersive.
Claim 8
Dependent Claim
38 words
The silver halide color photographic light-sensitive material according to claim 1, wherein the blue-sensitive silver halide emulsion layer contains the fine-grain silver halide described in the requirement d in the proportion of from 5 wt% to 30 wt%.
Claim 9
Dependent Claim
38 words
The silver halide color photographic light-sensitive material according to claim 1, wherein the non-light-sensitive hydrophilic colloidal layer contains the fine-grain silver halide described in the requirement d in the proportion of from 2mg/dm 2 to 10mg/dm 2 .
Claim 10
Dependent Claim
49 words
The silver halide color photographic light-sensitive material of claim 1, wherein with respect to the blue-sensitive layers, there are not less than three silver halide emulsion layers having different sensitivities, the lowest blue-sensitive layer (BL) being present between the support and the lower blue-sensitive silver halide emulsion layer (Bh).
Claim 11
Dependent Claim
56 words
The silver halide color photographic light-sensitive material of claim 1, wherein the highest blue-sensitive silver halide emulsion layer (BH) comprises a monodispersion type emulsion having a coefficient of variation σ/γ of not more than 0.2, wherein σ represents the standard deviation of the silver halide grain distribution, and γ represents the average silver halide grain size.
References Cited (Backward Citations)
US3663228A
Cited
US4229525A
Cited
US3658536A
Cited
US3902905A
Cited
US3993486A
Cited
US4015989A
Cited
US4184876A
Cited
US4267264A
Cited
US4369248A
Cited
US4490458A
Cited
US4524130A
Cited
US4526863A
Cited
GB2137372A
Cited
US4599302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |