Patent US5635659A successfully refreshed from Google Patents.
Patent US5455146A successfully refreshed from Google Patents.
US5455146A
Expired / Lapsed
US
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Method for forming color image
Assignee: Fujifilm Holdings Corp
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Filing: 1994-11-14
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Granted: 1995-10-03
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Expires: 2014-11-14
Abstract
Abstract A method for forming a color image of a color negative photographic material which comprises subjecting a color negative photographic material to a color development processing, said color negative photographic 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, having a specific photographic sensitivity of 100 or more and having each of the gradients γ AR , γ AG and γ AB of 0.5 to 0.9 after standard color development processing within the range of from 3 minutes to 4 minutes of the color development time, said gradients γ AR , γ AG and γ AB each being a gradient of the red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layers, respectively, obtained after conducting the standard color development processing, wherein each of the gradients γ BR , γ BG and γ BB after the rapid color development processing within the range of from 30 seconds to 90 seconds of the color development time satisfies the following condition: 0.9<γ.sub.BR /γ.sub.BG <1.2, 0.9<γ.sub.BB /γ.sub.BG <1.2 wherein γ BR , γ BG and γ BB each represents a gradient of the red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layers, respectively, obtained after conducting the rapid color development processing.
Inventors
- 👤 Toshihiro Nishikawa
- 👤 Hiroshi Fujimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:59
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/407; G03C2200/00; G03C2200/26; G03C2200/52; G03C7/3022; G03C7/3041
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
218 words
A method for forming a color image of a color negative photographic material which comprises subjecting a color negative photographic material to a color development processing, said color negative photographic 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, having a specific photographic sensitivity of 100 or more and having each of the gradients γ AR , γ AG and γ AB of 0.5 to 0.9 after standard color development processing within the range of from 3 minutes to 4 minutes of the color development time, said gradients γ AR , γ AG and γ AB each being a gradient of the red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layers, respectively, obtained after conducting the standard color development processing, wherein each of the gradients γ BR , γ BG and γ BB after the rapid color development processing within the range of from 30 seconds to 90 seconds of the color development time satisfies the following condition: 0.9<γ.sub.BR /γ.sub.BG <1.2, 0.9<γ.sub.BB /γ.sub.BG <1.2 wherein γ BR , γ BG and γ BB each represents a gradient of the red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layers, respectively, obtained after conducting the rapid color development processing.
Claim 2
Independent Claim
218 words
A method for forming a color image of a color negative photographic material which comprises subjecting a color negative photographic material to a color development processing, said color negative photographic 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, having a specific photographic sensitivity of 100 or more and having each of the gradients γ AR , γ AG and γ AB of 0.5 to 0.9 after standard color development processing within the range of from 3 minutes to 4 minutes of the color development time, said gradients γ AR , γ AG and γ AB each being a gradient of the red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layers, respectively, obtained after conducting the standard color development processing, wherein each of the gradients γ BR , γ BG and γ BB after the rapid color development processing within the range of from 30 seconds to 90 seconds of the color development time satisfies the following condition: 0.9<γ.sub.BR /γ.sub.BG <1.2, 0.9<γ.sub.BB /γ.sub.BG <1.2 wherein γ BR , γ BG and γ BB each represents a gradient of the red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layers, respectively, obtained after conducting the rapid color development processing.
Claim 3
Dependent Claim
88 words
A method for forming a color image as claimed in claim 1, wherein the red-sensitive silver halide emulsion layer having a maximum sensitivity in the color photographic material contains an emulsion in which 50% or more of the total projected area is tabular silver halide grains having an aspect ratio of 2 or more, and the swelling ratio of the light-sensitive layer is 2.3 or more, and the ratio of a 2-equivalent coupler to the coupler in the red-sensitive silver halide emulsion is 50 mol % or more.
Claim 4
Dependent Claim
26 words
A method for forming a color image as claimed in claim 2, wherein the total film thickness of the light-sensitive layers is 22 μm or less.
Claim 5
Dependent Claim
60 words
A method for forming a color image as claimed in claim 1, wherein the ratio of a concentration of a color developing agent in the color developing solution used in the standard color development processing and a concentration of a color developing agent in the color developing solution used in the rapid color development processing is from 1:1.5 to 1:5.
Claim 6
Dependent Claim
54 words
A method for forming a color image as claimed in claim 4, wherein the ratio of a halogen ion concentration in the color developing solution used in the standard color development processing and a halogen ion concentration in the color developing solution used in the rapid color development processing is from 1:1.5 to 1:5.
Claim 7
Dependent Claim
37 words
A method for forming a color image as claimed in claim 1, wherein the development temperature of the rapid color development processing is higher than that of the standard color development processing by 2° to 15° C.
Claim 8
Dependent Claim
82 words
A method for forming a color image as claimed in claim 1, wherein the standard color development processing is carried out using a color developing solution having a color developing agent concentration of from 10 to 16 mmol/l at a development temperature of 35° to 40° C., and the rapid color development processing is carried out using a color developing solution having a color developing agent concentration of from 18 to 60 mmol/l at a development temperature of 38° to 55° C.
Claim 9
Dependent Claim
22 words
A method for forming a color image as claimed in claim 1, wherein the specific photographic sensitivity is from 320 to 3,200.
References Cited (Backward Citations)
US5028515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |