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US5576127A Expired / Lapsed US ⏱️ 0.0 years remaining

Color filter and process for producing the color filter

Assignee: Fujifilm Holdings Corp
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Filing: 1995-04-20
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Granted: 1996-11-19
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Expires: 2015-04-20
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Abstract

Abstract A process for producing a color filter is disclosed, which comprises the steps of (a) pattern-exposing a light-sensitive material comprising a light-transmitting substrate having thereon at least three silver halide emulsion layers, and (b) subjecting the exposed light-sensitive material to color development processing, bleaching and fixing processing, and washing processing, wherein the at least three silver halide emulsion layers (i) comprise a layer containing at least a cyan coupler, a layer containing at least a magenta coupler and a layer containing at least a yellow coupler and (ii) have different color sensitivity; and the cyan coupler is a compound represented by the following formula (I): ##STR1## A color filter produced by the above-described process is also disclosed.

Inventors

  • 👤 Hiroyuki Hirai
  • 👤 Kozo Sato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 21:55
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/04; G03C7/06; G03C7/10; G03C7/12; G03C7/30; G03C7/32; G03C7/34; G03C7/346; G03F; G03F7/00; G03F7/0005; G03F7/0007; G03C2200/00; G03C2200/33

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 267 words
A process for producing a color filter, which comprises the steps of (a) pattern-exposing a light-sensitive material comprising a light-transmitting substrate having thereon at least three silver halide emulsion layers, and (b) subjecting the exposed light-sensitive material to color development processing, bleaching and fixing processing, and washing processing, wherein the at least three silver halide emulsion layers (i) comprise a layer containing at least a cyan coupler, a layer containing at least a magenta coupler and a layer containing at least a yellow coupler and (ii) have different color sensitivity; and the cyan coupler is a compound represented by the following formula (I): ##STR7## wherein R 1 represents a halogen atom, an alkyl group, an alkoxy group, an acylamino group or a carbamoyl group, and any two of plural R 1 groups may be combined with each other to form a 5- or 6-membered ring; n represents an integer of from 0 to 4; R 2 and R 3 are the same or different and each represents an alkyl group or an aryl group, and R 2 and R 3 may be combined with each other to form a 5- or 6-membered ring; R 4 and R 5 are the same or different and each represents a hydrogen atom or an alkyl group; X represents a hydrogen atom or a group which is eliminatable by an oxidation-coupling reaction with a developing agent; and Ballast represents a nondiffusive dye having 12 or more total carbon atoms, with the proviso that, when n is 2 or more, the plurality of R 1 groups are be the same or different.
Claim 2
Dependent Claim 267 words
A process for producing a color filter, which comprises the steps of (a) pattern-exposing a light-sensitive material comprising a light-transmitting substrate having thereon at least three silver halide emulsion layers, and (b) subjecting the exposed light-sensitive material to color development processing, bleaching and fixing processing, and washing processing, wherein the at least three silver halide emulsion layers (i) comprise a layer containing at least a cyan coupler, a layer containing at least a magenta coupler and a layer containing at least a yellow coupler and (ii) have different color sensitivity; and the cyan coupler is a compound represented by the following formula (I): ##STR7## wherein R 1 represents a halogen atom, an alkyl group, an alkoxy group, an acylamino group or a carbamoyl group, and any two of plural R 1 groups may be combined with each other to form a 5- or 6-membered ring; n represents an integer of from 0 to 4; R 2 and R 3 are the same or different and each represents an alkyl group or an aryl group, and R 2 and R 3 may be combined with each other to form a 5- or 6-membered ring; R 4 and R 5 are the same or different and each represents a hydrogen atom or an alkyl group; X represents a hydrogen atom or a group which is eliminatable by an oxidation-coupling reaction with a developing agent; and Ballast represents a nondiffusive dye having 12 or more total carbon atoms, with the proviso that, when n is 2 or more, the plurality of R 1 groups are be the same or different.
Claim 3
Dependent Claim 53 words
The process as claimed in claim 1, wherein X is selected from the group consisting of a hydrogen atom, a halogen atom, an alkoxy group, an aryloxy group, an acyloxy group, a sulfonyloxy group, a carbonamido group, a sulfonamido group, an alkoxycarbonyloxy group, an arylcarbonyloxy group, an imido group and a pyrazol group.
Claim 4
Dependent Claim 33 words
The process as claimed in claim 1, wherein Ballast is selected from the group consisting of a straight chain or branched alkyl group, an alkoxy group, an acylamino group and a carbamoyl group.
Claim 5
Dependent Claim 266 words
A color filter produced by a process, which comprises the steps of (a) pattern-exposing a light-sensitive material comprising a light-transmitting substrate having thereon at least three silver halide emulsion layers, and (b) subjecting the exposed light-sensitive material to color development processing, bleaching and fixing processing, and washing processing, wherein the at least three silver halide emulsion layers (i) comprise a layer containing at least a cyan coupler, a layer containing at least a magenta coupler and a layer containing at least a yellow coupler and (ii) have different color sensitivity; and the cyan coupler is a compound represented by the following formula (I): ##STR8## wherein R 1 represents a halogen atom, an alkyl group, an alkoxy group, an acylamino group or a carbamoyl group, and any two of plural R 1 groups are combined with each other to form a 5- or 6-membered ring; n represents an integer of from 0 to 4; R 2 and R 3 are the same or different and each represents an alkyl group or an aryl group, and R 2 and R 3 may be combined with each other to form a 5- or 6-membered ring; R 4 and R 5 are the same or different and each represents a hydrogen atom or an alkyl group; X represents a hydrogen atom or a group which is eliminatable by an oxidation-coupling reaction with a developing agent; and Ballast represents a nondiffusive dye having 12 or more total carbon atoms, with the proviso that, when n is 2 or more, the plurality of R 1 groups may be the same or different.
Claim 6
Dependent Claim 266 words
A color filter produced by a process, which comprises the steps of (a) pattern-exposing a light-sensitive material comprising a light-transmitting substrate having thereon at least three silver halide emulsion layers, and (b) subjecting the exposed light-sensitive material to color development processing, bleaching and fixing processing, and washing processing, wherein the at least three silver halide emulsion layers (i) comprise a layer containing at least a cyan coupler, a layer containing at least a magenta coupler and a layer containing at least a yellow coupler and (ii) have different color sensitivity; and the cyan coupler is a compound represented by the following formula (I): ##STR8## wherein R 1 represents a halogen atom, an alkyl group, an alkoxy group, an acylamino group or a carbamoyl group, and any two of plural R 1 groups are combined with each other to form a 5- or 6-membered ring; n represents an integer of from 0 to 4; R 2 and R 3 are the same or different and each represents an alkyl group or an aryl group, and R 2 and R 3 may be combined with each other to form a 5- or 6-membered ring; R 4 and R 5 are the same or different and each represents a hydrogen atom or an alkyl group; X represents a hydrogen atom or a group which is eliminatable by an oxidation-coupling reaction with a developing agent; and Ballast represents a nondiffusive dye having 12 or more total carbon atoms, with the proviso that, when n is 2 or more, the plurality of R 1 groups may be the same or different.
Claim 7
Dependent Claim 54 words
The color filter as claimed in claim 4, wherein X is selected from the group consisting of a hydrogen atom, a halogen atom, an alkoxy group, an aryloxy group, an acyloxy group, a sulfonyloxy group, a carbonamido group, a sulfonamido group, an alkoxycarbonyloxy group, an arylcarbonyloxy group, an imido group and a pyrazol group.
Claim 8
Dependent Claim 34 words
The color filter as claimed in claim 4, wherein Ballast is selected from the group consisting of a straight chain or branched alkyl group, an alkoxy group, an acylamino group and a carbamoyl group.

References Cited (Backward Citations)

US5462822A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-11-19 2000-05-20 2000-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-11-19 2004-05-20 2004-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-11-19 2008-05-20 2008-11-19 $7700.00 Window Closed / Lapsed

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