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US4599301A Expired / Lapsed US ⏱️ 0.0 years remaining

Silver halide color photographic material

Assignee: Fujifilm Holdings Corp
•
Filing: 1985-08-08
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Granted: 1986-07-08
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Expires: 2005-08-08
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Abstract

Abstract A silver halide color photographic material is described, comprising a support having thereon at least a cyan-color-forming red-sensitive emulsion layer, a magenta-color-forming green-sensitive emulsion layer, and a yellow-color-forming blue-sensitive emulsion layer; the weight-averaged wavelength (λ) on the spectral sensitivity distribution determined by equi-energy spectrum of said red-sensitive emulsion layer being less than 640 nm; the longest wavelength in the wavelengths having the sensitivity of 1/2 of the maximum value of the above-described equi-energy spectrum being in a range of from 30 nm to 55 nm longer than the weight-averaged wavelength and the minimum wavelength thereof being in a range of from 30 nm to 55 nm shorter than the weight-averaged wavelength; in the above-described equi-energy spectrum, values A and B defined below satisfying the relation of A/B≧0.91; and further the sum of the interlayer effects on the red-sensitive emulsion layer from the green-sensitive emulsion layer and the blue-sensitive emulsion layer being more than 0.25 ##EQU1## wherein, S(λ) is the spectral sensitivity, λ 1 is the wavelength of the short wavelength end, and λ 2 is the wavelength of the long wavelength end.

Inventors

  • 👤 Yuichi Ohashi
  • 👤 Tadashi Ogawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 02:06
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3041; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 179 words
A silver halide color photographic material comprising a support having thereon at least a cyan-color-forming red-sensitive emulsion layer, a magenta-color-forming green-sensitive emulsion layer, and a yellow-color-forming blue-sensitive emulsion layer; the weight-averaged wavelength(λ) on the spectral sensitivity distribution determined by equi-energy spectrum of said red-sensitive emulsion layer being less than 640 nm; the longest wavelength in the wavelengths having the sensitivity of 1/2 of the maximum value of the above-described equi-energy spectrum being in a range of from 30 nm to 55 nm longer than the weight-averaged wavelength and the minimum wavelength thereof being in a range of from 30 nm to 55 nm shorter than the weight-averaged wavelength; in the above-described equi-energy spectrum, values A and B defined below satisfying the relation of A/B≧0.91; and further the sum of the interlayer effects on the red-sensitive emulsion layer from the green-sensitive emulsion layer and the blue-sensitive emulsion layer being more than 0.25 ##EQU3## wherein, S(λ) is the spectral sensitivity, λ 1 is the wavelength of the short wavelength end, and λ 2 is the wavelength of the long wavelength end.
Claim 2
Dependent Claim 179 words
A silver halide color photographic material comprising a support having thereon at least a cyan-color-forming red-sensitive emulsion layer, a magenta-color-forming green-sensitive emulsion layer, and a yellow-color-forming blue-sensitive emulsion layer; the weight-averaged wavelength(λ) on the spectral sensitivity distribution determined by equi-energy spectrum of said red-sensitive emulsion layer being less than 640 nm; the longest wavelength in the wavelengths having the sensitivity of 1/2 of the maximum value of the above-described equi-energy spectrum being in a range of from 30 nm to 55 nm longer than the weight-averaged wavelength and the minimum wavelength thereof being in a range of from 30 nm to 55 nm shorter than the weight-averaged wavelength; in the above-described equi-energy spectrum, values A and B defined below satisfying the relation of A/B≧0.91; and further the sum of the interlayer effects on the red-sensitive emulsion layer from the green-sensitive emulsion layer and the blue-sensitive emulsion layer being more than 0.25 ##EQU3## wherein, S(λ) is the spectral sensitivity, λ 1 is the wavelength of the short wavelength end, and λ 2 is the wavelength of the long wavelength end.
Claim 3
Dependent Claim 22 words
A silver halide color photographic material as in claim 1, wherein the weight-averaged wavelength (λ) is from 605 nm to 630 nm.
Claim 4
Dependent Claim 15 words
A silver halide color photographic material as in claim 1, wherein the relation of A/B≧0.95.
Claim 5
Dependent Claim 15 words
A silver halide color photographic material as in claim 2, wherein the relation of A/B≧0.95.
Claim 6
Dependent Claim 23 words
A silver halide color photographic material as in claim 1, wherein at least one of said emulsion layer contains a diffusible DIR compound.
Claim 7
Dependent Claim 19 words
A silver halide color photographic material as in claim 5, wherein the magnitude of diffusibility is higher than 0.4.
Claim 8
Dependent Claim 18 words
A silver halide color photographic material as in claim 5, wherein said DIR compound is a DIR coupler.
Claim 9
Dependent Claim 18 words
A silver halide color photographic material as in claim 6, wherein said DIR compound in a DIR coupler.
Claim 10
Dependent Claim 26 words
A silver halide color photographic material as in claim 5, wherein the amount of the diffusible DIR compound is from 0.00001 to 0.002 mole/m 2 .
Claim 11
Dependent Claim 26 words
A silver halide color photographic material as in claim 6, wherein the amount of the diffusible DIR compound is from 0.00001 to 0.002 mole/m 2 .
Claim 12
Dependent Claim 26 words
A silver halide color photographic material as in claim 7, wherein the amount of the diffusible DIR coupler is from 0.00001 to 0.002 mole/m 2 .
Claim 13
Dependent Claim 26 words
A silver halide color photographic material as in claim 8, wherein the amount of the diffusible DIR coupler is from 0.00001 to 0.002 mole/m 2 .
Claim 14
Dependent Claim 26 words
A silver halide color photographic material as in claim 5, wherein the amount of the diffusible DIR compound is from 0.00002 to 0.001 mole/m 2 .
Claim 15
Dependent Claim 26 words
A silver halide color photographic material as in claim 6, wherein the amount of the diffusible DIR compound is from 0.00002 to 0.001 mole/m 2 .
Claim 16
Dependent Claim 26 words
A silver halide color photographic material as in claim 7, wherein the amount of the diffusible DIR coupler is from 0.00002 to 0.001 mole/m 2 .
Claim 17
Dependent Claim 26 words
A silver halide color photographic material as in claim 8, wherein the amount of the diffusible DIR coupler is from 0.00002 to 0.001 mole/m 2 .

References Cited (Backward Citations)

US3227554A Cited
US4040829A Cited
US4306015A Cited
US4464463A Cited
EP0114675A2 Cited
US4524130A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-07-07 1990-01-06 1990-07-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-07-07 1994-01-06 1994-07-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-07-07 1998-01-06 1998-07-08 $7700.00 Window Closed / Lapsed

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