Patent US3844784A successfully refreshed from Google Patents.
US3844784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversal multi-layer color photographic materials
Assignee: Fujifilm Holdings Corp
•
Filing: 1972-09-28
•
Granted: 1974-10-29
•
Expires: 1992-09-28
Abstract
Abstract A reversal multi-layer color photographic light-sensitive material having on a support a red sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer, and a blue sensitive silver halide emulsion layer which is capable of forming after exposure upon development with color developing solutions containing a diffusible cyan coupler, a diffusible yellow coupler, and a diffusible magenta coupler, respectively, cyan, yellow, and magenta color images, in which the red sensitive silver halide emulsion layer of the color photographic material contains a diffusion resistant cyan coupler is disclosed.
Inventors
- 👤 T Shimada
- 👤 Y Yokota
- 👤 J Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:10
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3003; G03C7/32; G03C7/34
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
132 words
IN A MULTI-LAYER REVERSAL COLOR PHOTOGRAPHIC MATERIAL HAVING ON A SUPPORT A RED SENSITIVE SILVER HALIDE EMULSION LAYER, A GREEN SENSITIVE SILVER HALIDE EMULSION LAYER, AND A BLUE SENSITIVE SILVER HALIDE EMULSION LAYER CAPABLE OF FORMING AFTER EXPSOURE AND BLACK AND WHITE NEGATIVE DEVELOPMENT CYAN, YELLOW, AND MAGENTA DYED IMAGES RESPECTIVELY BY THE DEVELOPMENTS IN THREE COLOR DEVELOPING SOLUTIONS CONTAINING A DIFFUSIBLE CYAN COUPLER, A DIFFUSIBLE YELLOW COUPLER, AND DIFFUSIBLE MAGNETA COUPLER, RESPECTIVELY, THE IMPROVEMENT COMPRISING SAID RED SENSITIVE SILVER HALIDE EMULSION CONTAINING A DIFFUSION RESISTANT CYAN COUPLER PRESENT IN SAID RED SENSITIVE EMULSION LAYER IN AN AMOUNT RANGING FROM 0.005 TO 0.5 MOL PER MOL OF THE SILVER HALIDE IN SAID RED SENSITIVE EMULSION LAYER WHEREIN SAID BLUE-SENSITIVE AND SAID GREEN-SENSITIVE LAYERS CONTAIN NO COLOR COUPLERS AFTER "LAYER" AT LAST LINE.
Claim 2
Dependent Claim
132 words
IN A MULTI-LAYER REVERSAL COLOR PHOTOGRAPHIC MATERIAL HAVING ON A SUPPORT A RED SENSITIVE SILVER HALIDE EMULSION LAYER, A GREEN SENSITIVE SILVER HALIDE EMULSION LAYER, AND A BLUE SENSITIVE SILVER HALIDE EMULSION LAYER CAPABLE OF FORMING AFTER EXPSOURE AND BLACK AND WHITE NEGATIVE DEVELOPMENT CYAN, YELLOW, AND MAGENTA DYED IMAGES RESPECTIVELY BY THE DEVELOPMENTS IN THREE COLOR DEVELOPING SOLUTIONS CONTAINING A DIFFUSIBLE CYAN COUPLER, A DIFFUSIBLE YELLOW COUPLER, AND DIFFUSIBLE MAGNETA COUPLER, RESPECTIVELY, THE IMPROVEMENT COMPRISING SAID RED SENSITIVE SILVER HALIDE EMULSION CONTAINING A DIFFUSION RESISTANT CYAN COUPLER PRESENT IN SAID RED SENSITIVE EMULSION LAYER IN AN AMOUNT RANGING FROM 0.005 TO 0.5 MOL PER MOL OF THE SILVER HALIDE IN SAID RED SENSITIVE EMULSION LAYER WHEREIN SAID BLUE-SENSITIVE AND SAID GREEN-SENSITIVE LAYERS CONTAIN NO COLOR COUPLERS AFTER "LAYER" AT LAST LINE.
Claim 3
Dependent Claim
25 words
The multi-layer reversal color photographic material as set forth in claim 1, wherein said diffusion resisting cyan coupler is a compound represented by the formula
Claim 4
Dependent Claim
25 words
The multi-layer color reversal photographic material as set forth in claim 1, wherein said diffusion resistant cyan coupler is a compound represented by the formula:
Claim 5
Dependent Claim
44 words
The multi-layer color reversal photographic material as set forth in claim 1, wherein said silver halide in said red sensitive silver halide emulsion layer is silver iodobromide or silver chloroiodobromide containing from 0.1 to 10 mol percent of iodide per mol of silver halide.
Claim 6
Dependent Claim
19 words
The multi-layer color reversal photographic material as set forth in claim 1, wherein said diffusion resistant cyan coupler is
Claim 7
Dependent Claim
25 words
The multi-layer color reversal photographic material as set forth in Claim 1, wherein said red sensitive silver halide emulsion layer contains chemically sensitized silver halide.
Claim 8
Dependent Claim
25 words
The multi-layer color reversal photographic material as set forth in claim 1, wherein said silver halide in each of said emulsion layers is chemically sensitized.
Claim 9
Dependent Claim
121 words
In a process for forming color photographic images comprising image exposing a multi-layer reversal color photographic material including a support carrying a red sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer and a blue sensitive silver halide emulsion layer; developing said photographic material with a black and white developing solution and then subjecting said photographic material to color development with three color developing solutions, each containing a diffusible cyan coupler, a diffusible yellow coupler or a diffusible magenta coupler to form cyan, yellow and magenta dye images, respectively, the improvement which comprises reducing color mixing by including 0.005 to 0.5 mol of diffusion resistant cyan coupler per mol of silver halide in said red sensitive emulsion layer.
Claim 10
Dependent Claim
121 words
In a process for forming color photographic images comprising image exposing a multi-layer reversal color photographic material including a support carrying a red sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer and a blue sensitive silver halide emulsion layer; developing said photographic material with a black and white developing solution and then subjecting said photographic material to color development with three color developing solutions, each containing a diffusible cyan coupler, a diffusible yellow coupler or a diffusible magenta coupler to form cyan, yellow and magenta dye images, respectively, the improvement which comprises reducing color mixing by including 0.005 to 0.5 mol of diffusion resistant cyan coupler per mol of silver halide in said red sensitive emulsion layer.
Claim 11
Dependent Claim
18 words
The process of claim 8 wherein said diffusion resisting cyan coupler is a compound represented by the formula
Claim 12
Dependent Claim
18 words
The process of claim 8 wherein the diffusion resistant cyan coupler is a compound represented by the formula
Claim 13
Dependent Claim
40 words
The process of claim 8 wherein there is used as the silver halide in said red sensitive silver halide emulsion layer silver iodobromide or silver chloroiodobromide containing from 0.1 to 10 mol percent of iodide per mol of silver halide.
Claim 14
Dependent Claim
12 words
The process of claim 8 wherein said diffusion resistant cyan coupler is
Claim 15
Dependent Claim
20 words
The process of claim 8 wherein chemically sensitized silver halide is present in said red sensitive silver halide emulsion layer.
Claim 16
Dependent Claim
18 words
The process of claim 8 wherein said silver halide in each of said emulsion layers is chemically sensitized.
Claim 17
Dependent Claim
25 words
The process of claim 8 wherein the blue sensitive silver halide emulsion and the green sensitive silver halide emulsion layer do not contain color couplers.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |