Patent US4633618A successfully refreshed from Google Patents.
Patent US4663271A successfully refreshed from Google Patents.
US4663271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color photographic light-sensitive materials
Assignee: Fujifilm Holdings Corp
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Filing: 1986-03-04
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Granted: 1987-05-05
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Expires: 2006-03-04
Abstract
Abstract A color photographic light-sensitive material comprising a support having provided thereon at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer is disclosed. The green-sensitive silver halide emulsion layer has a spectral sensitivity distribution whose wave-averaged wavelength of sensitivity ranges from 520 nm to 580 nm and the material further contains at least one silver halide emulsion layer which is light-responsive opposite to other layers and forms an image having substantially the same hue as that of the red-sensitive silver halide emulsion layer and whose spectral sensitivity distribution has a wave-averaged wavelength of sensitivity ranging from 500 nm to 560 nm. The material is excellent in both saturation of red and distinction of green colors.
Inventors
- 👤 Yasushi Nozawa
- 👤 Noboru Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:40
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3041
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
133 words
A color photographic light-sensitive material comprising a support having provided thereon at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, wherein the green-sensitive silver halide emulsion layer has a spectral sensitivity distribution whose weight-averaged wavelength of sensitivity (λ G ) ranges from 520 nm to 580 nm both inclusive and the material further contains at least one silver halide emulsion layer which is light-responsive opposite to the above-described silver halide emulsion layers and froms an image having substantially the same hue as that of an image formed by said red-sensitive silver halide emulsion layer and whose spectral sensitivity distribution has a weight-averaged wavelength of sensitivity (λ -R ) ranging from 500 nm to 560 nm both inclusive.
Claim 2
Dependent Claim
133 words
A color photographic light-sensitive material comprising a support having provided thereon at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, wherein the green-sensitive silver halide emulsion layer has a spectral sensitivity distribution whose weight-averaged wavelength of sensitivity (λ G ) ranges from 520 nm to 580 nm both inclusive and the material further contains at least one silver halide emulsion layer which is light-responsive opposite to the above-described silver halide emulsion layers and froms an image having substantially the same hue as that of an image formed by said red-sensitive silver halide emulsion layer and whose spectral sensitivity distribution has a weight-averaged wavelength of sensitivity (λ -R ) ranging from 500 nm to 560 nm both inclusive.
Claim 3
Dependent Claim
18 words
A color photographic light-sensitive material as in claim 1, wherein λ -R is less than λ G .
Claim 4
Dependent Claim
22 words
A color photographic light-sensitive material as in claim 1, wherein λ -R is less than λ G by at least 5 nm.
Claim 5
Dependent Claim
22 words
A color photographic light-sensitive material as in claim 1, wherein λ -R is less than λ G by at least 10 nm.
Claim 6
Dependent Claim
34 words
A color photographic light-sensitive material as in claim 1, wherein said silver halide emulsion layer which is light-responsive opposite to other layers comprises a combination of a positive emulsion and a cyan color-forming coupler.
Claim 7
Dependent Claim
33 words
A color photographic light-sensitive material as in claim 1, wherein said silver halide emulsion layer which is light-responsive opposite to other layers comprises a combination of a negative emulsion and a cyan-colored coupler.
Claim 8
Dependent Claim
56 words
A color photographic light-sensitive material as in claim 1, wherein said silver halide emulsion layer which is light-responsive opposite to other layers comprises a combination of a negative emulsion, a DIR coupler or DIR compound capable of releasing a developing inhibitor upon coupling with an oxidized product of a developing agent and a previously fogged emulsion.
Claim 9
Dependent Claim
57 words
A color photographic light-sensitive material as in claim 1, wherein said silver halide emulsion layer which is light-responsive opposite to other layers comprises a combination of a negative emulsion and a dye releasing redox compound or diffusible dye releasing coupler capable of releasing a complete cyan dye upon coupling with an oxidized product of an developing agent.
Claim 10
Dependent Claim
106 words
A color photographic light-sensitive material as in claim 7, wherein said silver halide emulsion layer which is light-responsive opposite to other layers and has been spectrally sensitized so as to have λ -R of from 500 nm to 560 nm both inclusive contains a DIR compound capable of releasing a development inhibitor or a precursor thereof upon coupling with an oxidized product of a developing agent, and said emulsion layer or an adjacent layer contains a previously fogged silver halide emulsion and a coupler capable of forming an image having substantially the same hue as that of an image of the red-sensitive silver halide emulsion layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |