Patent US4477560A successfully refreshed from Google Patents.
US4477560A
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Light-sensitive silver halide color photographic material
Assignee: Konica Minolta Inc
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Filing: 1982-12-13
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Granted: 1984-10-16
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Expires: 2002-12-13
Abstract
Abstract There is disclosed a light-sensitive silver halide color photographic material, comprising a group of silver halide emulsion layers constituting the same color sensitive layer, said group of emulsion layers consisting of at least two silver halide emulsion layers with different light sensitivities, the layer with the highest sensitivity incorporating at least one kind of a compound having a non-diffusion type coupler component and a scavenger component for an oxidized product of a color forming developing agent in an amount of 1 to 5 mole % per mole of the silver halide in the layer containing said compound. The light-sensitive silver halide color photographic material according to the present invention has high sensitivity and can provide high image quality with a broad latitude.
Inventors
- 👤 Takeo Koitabashi
- 👤 Kiyoshi Yamashita
- 👤 Toshifumi Iijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:21
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3003; G03C7/3029; G03C2007/3034; G03C7/305; G03C7/30541
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
98 words
A light-sensitive silver halide color photographic material, comprising a color sensitive layer containing a plurality of silver halide emulsion layers, said plurality of emulsion layers consisting of at least two silver halide emulsion layers having different sensitivities to light, the layer having the highest sensitivity containing at least one compound having a non-diffusion type coupler component and a scavenger component for reaction with an oxidized product of a color forming developing agent, the amount of said compound being 1 to 5 mole % per mole of the silver halide in the layer of highest sensitivity containing said compound.
Claim 2
Dependent Claim
98 words
A light-sensitive silver halide color photographic material, comprising a color sensitive layer containing a plurality of silver halide emulsion layers, said plurality of emulsion layers consisting of at least two silver halide emulsion layers having different sensitivities to light, the layer having the highest sensitivity containing at least one compound having a non-diffusion type coupler component and a scavenger component for reaction with an oxidized product of a color forming developing agent, the amount of said compound being 1 to 5 mole % per mole of the silver halide in the layer of highest sensitivity containing said compound.
Claim 3
Dependent Claim
29 words
The light-sensitive silver halide color photographic material of claim 1, wherein the layer having the highest sensitivity has an image density of 0.2 to 0.6 after color development treatment.
Claim 4
Dependent Claim
100 words
A light-sensitive silver halide color photographic material, comprising a blue sensitive layer, a green sensitive layer and a red sensitive layer, at least one of said layers consisting of at least two silver halide emulsion layers having different sensitivities to light, the layer having the highest sensitivity containing at least one compound having a non-diffusion type couler component and a scavenger component for reaction with an oxidized product of a color forming developing agent, the amount of said compound being 1 to 5 mole % per mole of the silver halide in the layer of highest sensitivity containing said compound.
Claim 5
Dependent Claim
100 words
A light-sensitive silver halide color photographic material, comprising a blue sensitive layer, a green sensitive layer and a red sensitive layer, at least one of said layers consisting of at least two silver halide emulsion layers having different sensitivities to light, the layer having the highest sensitivity containing at least one compound having a non-diffusion type couler component and a scavenger component for reaction with an oxidized product of a color forming developing agent, the amount of said compound being 1 to 5 mole % per mole of the silver halide in the layer of highest sensitivity containing said compound.
Claim 6
Dependent Claim
29 words
The light-sensitive silver halide color photographic material of claim 3, wherein the layer having the highest sensitivity has an image density of 0.2 to 0.6 after color development treatment.
Claim 7
Dependent Claim
133 words
The light-sensitive silver halide color photographic material of claim 1, wherein said compound has the formula: ##STR6## wherein R is selected from the group consisting of a hydrogen atom, an alkyl group and a phenyl group; said non-diffusion type coupler component is a residual group of a non-diffusion type coupler capable of forming a non-diffusion type color forming dye through a coupling reaction with an oxidized product of a color forming developing agent, wherein a hydrogen atom at the active site of said non-diffusion type coupler is eliminated; and said Scavenger Component is a residual group of a coupler capable of forming a diffusion-type color forming dye or a non-coloring compound which absorbs substantially no light in the visible region, wherein a hydrogen atom at the active site of said coupler is eliminated.
Claim 8
Dependent Claim
115 words
The light-sensitive silver halide color photographic material of claim 1, wherein said compound has the formula: ##STR7## wherein the non-diffusion type coupler component is a residual group of a non-diffusion type coupler capable of forming a non-diffusion type color forming dye through a coupling reaction with an oxidized product of a color forming developing agent, wherein a hydrogen atom at a non-active site of said non-diffusion type coupler is eliminated; and said Scavenger component is a residual group of a coupler capable of forming a diffusion-type color forming dye or a non-coloring compound which absorbs substantially no light in the visible region, wherein a hydrogen atom at the active site of said coupler is eliminated.
Claim 9
Dependent Claim
36 words
The light-sensitive silver halide color photographic material of claim 6, wherein the non-diffusion type coupler component is bonded to said Scavenger component through an oxygen atom or a nitrogen atom of said non-diffusion type coupler component.
Claim 10
Dependent Claim
114 words
The light-sensitive silver halide color photographic material of claim 1, wherein said compound has the formula: ##STR8## wherein said non-diffusion type coupler component is a residual group of a non-diffusion type coupler capable of forming a non-diffusion type color forming dye through a coupling reaction with an oxidized product of a color forming developing agent, wherein a hydrogen atom at the active site of said non-diffusion type coupler is eliminated; and said scavenger component is a residual group of a coupler, capable of forming a diffusion-type color forming dye or a non-coloring compound absorbing substantially no light in the visible region, wherein a hydrogen atom at a non-active site of said coupler is eliminated.
Claim 11
Dependent Claim
36 words
The light-sensitive silver halide color photographic material of claim 8, wherein the non-diffusion type coupler component is bonded to said Scavenger component through an oxygen atom or a nitrogen atom of said non-diffusion type coupler component.
Claim 12
Dependent Claim
153 words
The light-sensitive silver halide color photographic material of claim 1, wherein said compound has the formula: ##STR9## wherein said non-diffusion type coupler component is a residual group of a non-diffusion type coupler capable of forming a non-diffusion type color forming dye through a coupling reaction with an oxidized product of a color forming developing agent, wherein a hydrogen atom at the active site of said non-diffusion type coupler is eliminated; and said ED-component is a residual group of a compound, capable of undergoing a cross oxidation reaction with an oxidized product of a color forming developing agent, wherein a hydrogen atom of said compound which produces said ED-component is eliminated; and wherein the ED-component becomes an active Scavenger component upon cleavage of the linkage between the ED-component and the non-diffusion type coupler component when the non-diffusion type coupler component undergoes a coupling reaction with an oxidized product of a color forming developing agent.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |