US4977069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 18:08
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.
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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) | 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 |