US4368257A
Expired / Lapsed
US
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Method for forming a cyan dye image
Assignee: Konica Minolta Inc
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Filing: 1981-01-14
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Granted: 1983-01-11
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Expires: 2001-01-14
Abstract
Abstract A method of forming a cyan dye image by development of an exposed silver halide photographic material with a developer containing a cyan coupler having one of the following formulae: ##STR1## wherein R 1 is a hydrogen atom or alkyl having 1 to 20 carbon atoms; R 2 is alkyl, aryl, or a hetero ring; R 3 is hydrogen or halogen; X is arylene or alkylene; Z is a coupling off group; n is 1 or 2; ##STR2## wherein Cy, Cy' and Cy" are individually a cyclic aliphatic, aromatic or heterocyclic group; R, R' and R" are individually alkyl; A is hydrogen or a monovalent organic group, Y is a divalent organic group, K, l, m, m' m" are individually 0 or 1, provided that when m=0, Cy is a cyclic aliphatic or heterocyclic group.
Inventors
- 👤 Yasushi Usagawa
- 👤 Wataru Fujimatsu
- 👤 Osamu Sasaki
- 👤 Katsumi Matsuura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:31
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/34; G03C7/346
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
A method for forming a cyan dye image comprising developing an imagewisely exposed silver halide emulsion layer coated on a support with an aromatic primary amine developing agent in the presence of a cyan coupler represented by the formula [I], [II] or [III]: ##STR69## (Wherein, R 1 is hydrogen atom, or alkyl having 1 to 20 numbers of carbon; R 2 is alkyl, aryl, or hetero ring; R 3 is hydrogen, or halogen; X is arylene or alkylene; Z is coupling off group; and n is 1 or 2.); ##STR70##
Claim 2
Independent Claim
90 words
A method for forming a cyan dye image comprising developing an imagewisely exposed silver halide emulsion layer coated on a support with an aromatic primary amine developing agent in the presence of a cyan coupler represented by the formula [I], [II] or [III]: ##STR69## (Wherein, R 1 is hydrogen atom, or alkyl having 1 to 20 numbers of carbon; R 2 is alkyl, aryl, or hetero ring; R 3 is hydrogen, or halogen; X is arylene or alkylene; Z is coupling off group; and n is 1 or 2.); ##STR70##
Claim 3
Dependent Claim
56 words
Wherein Cy, Cy' and Cy" are individually cyclic aliphatic, aromatic or heterocyclic group; R, R' and R" are individually alkyl; A is hydrogen, or a monovalent organic group, Y is a divalent organic group, K, l, m, m' m" are individually 0 or 1 with proviso that when m-0, Cy is cyclic aliphatic or heterocyclic group.
Claim 4
Dependent Claim
56 words
Wherein Cy, Cy' and Cy" are individually cyclic aliphatic, aromatic or heterocyclic group; R, R' and R" are individually alkyl; A is hydrogen, or a monovalent organic group, Y is a divalent organic group, K, l, m, m' m" are individually 0 or 1 with proviso that when m-0, Cy is cyclic aliphatic or heterocyclic group.
Claim 5
Dependent Claim
32 words
A method according to claim 1, wherein Cy, Cy' and Cy" are individually 3 to 6 membered aliphatic cycle, 3 to 6 membered heterocycle containing nitrogen, oxygen or sulfur, or aromatic group.
Claim 6
Dependent Claim
10 words
A method according to claim 1 wherein A is hydrogen.
Claim 7
Dependent Claim
19 words
A method according to claim 1 wherein the cyan coupler is one represented by the formula [I] or [II].
Claim 8
Dependent Claim
17 words
A method according to claim 4 wherein the cyan coupler is one represented by the formula [I].
Claim 9
Dependent Claim
11 words
A method according to claim 5 wherein X is p-phenylene group.
Claim 10
Dependent Claim
17 words
A method according to claim 1 wherein the cyan coupler is one represented by the formula [III].
Claim 11
Dependent Claim
37 words
A color photographic material having a silver halide emulsion layer containing a cyan coupler coated on a support wherein the cyan coupler is represented by the formula [I], [II] or [III] as shown in the claim 1.
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) | 1986-01-10 | 1986-07-12 | 1987-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-10 | 1990-07-12 | 1991-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-10 | 1994-07-12 | 1995-01-11 | $7700.00 | Window Closed / Lapsed |