Patent US3940271A successfully refreshed from Google Patents.
US3940271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1974-02-04
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Granted: 1976-02-24
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Expires: 1994-02-04
Abstract
Abstract A color photographic light-sensitive material comprising a support having coated thereon at least one light-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, at least one light-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, at least one light-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, and at least one light-sensitive silver halide emulsion layer containing a compound having a thioether bond directly connected to a nitrogen-containing heterocyclic ring.
Inventors
- 👤 Masayoshi Kawai
- 👤 Tadao Shishido
- 👤 Shoji Ishiguro
- 👤 Tadao Sakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:59
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/22; G03C7/24
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
80 words
A color photographic light-sensitive material comprising a support having coated thereon at least one light-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, at least one light-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, at least one light-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, and at least one light-sensitive silver halide emulsion layer containing a compound represented by the following formula, ##SPC5## wherein R is an alkyl group having at least 12 carbon atoms.
Claim 2
Dependent Claim
80 words
A color photographic light-sensitive material comprising a support having coated thereon at least one light-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, at least one light-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, at least one light-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, and at least one light-sensitive silver halide emulsion layer containing a compound represented by the following formula, ##SPC5## wherein R is an alkyl group having at least 12 carbon atoms.
Claim 3
Dependent Claim
78 words
A color photographic light-sensitive material comprising a support having coated thereon at least one blue-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, at least one green-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, at least one red-sensitive emulsion layer containing a cyan dye-forming coupler and at least one silver halide emulsion layer containing a bleach inhibitor represented by the following formula, ##SPC6## wherein R is an alkyl group having at least 12 carbon atoms.
Claim 4
Dependent Claim
78 words
A color photographic light-sensitive material comprising a support having coated thereon at least one blue-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, at least one green-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, at least one red-sensitive emulsion layer containing a cyan dye-forming coupler and at least one silver halide emulsion layer containing a bleach inhibitor represented by the following formula, ##SPC6## wherein R is an alkyl group having at least 12 carbon atoms.
Claim 5
Dependent Claim
53 words
The color photographic light-sensitive material as claimed in claim 2, wherein said silver halide emulsion layer containing said bleach inhibitor contains at least one gelatin hardener selected from the group consisting of an aldehyde, a methylol, a dioxane, an aziridine, an isooxazole, a carbodiimide, an active halogen compound and an active vinyl compound.
Claim 6
Dependent Claim
31 words
The color photographic light-sensitive material as claimed in claim 2, wherein said silver halide emulsion layer containing said bleach inhibitor contains at least one spectrally sensitizing cyanine dye or merocyanine dye.
Claim 7
Dependent Claim
26 words
The color photographic light-sensitive material as claimed in claim 2, wherein said silver halide emulsion layer containing said bleach inhibitor is adjacent said green-sensitive emulsion layer.
Claim 8
Dependent Claim
34 words
The color photographic light-sensitive material as claimed in claim 2, including an intermediate layer adjacent said green-sensitive layer and wherein said silver halide emulsion layer containing said bleach inhibitor is adjacent said intermediate layer.
Claim 9
Dependent Claim
26 words
The color photographic light-sensitive material as claimed in claim 2, wherein said silver halide emulsion layer containing said bleach inhibitor is adjacent said blue-sensitive emulsion layer.
Claim 10
Dependent Claim
35 words
The color photographic light-sensitive material as claimed in claim 2, including an intermediate layer adjacent said blue-sensitive emulsion layer and wherein said silver halide emulsion layer containing said bleach inhibitor is adjacent said intermediate layer.
Claim 11
Dependent Claim
34 words
A process for forming color dye images and silver images which comprises exposing the color photographic light-sensitive material as claimed in claim 2, developing, stopping, first fixing, bleaching and then second fixing said material.
Claim 12
Dependent Claim
18 words
The process as claimed in claim 9, wherein said stopping and said first fixing are carried out simultaneously.
Claim 13
Dependent Claim
30 words
a process for forming color dye images and silver images which comprises exposing the color photographic light-sensitive material as claimed in claim 2, developing, stopping, bleaching, and fixing said material.
Claim 14
Dependent Claim
29 words
A process for forming color dye images and silver images which comprises exposing the color photographic light-sensitive material as claimed in claim 2, developing, bleaching and fixing said material.
Claim 15
Dependent Claim
16 words
The color photographic light-sensitive material as claimed in claim 2, wherein said bleach-inhibitor is ##SPC7## ##SPC8##
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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |