Patent US4500635A successfully refreshed from Google Patents.
US4500635A
Expired / Lapsed
US
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Color photographic silver halide light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1984-03-14
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Granted: 1985-02-19
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Expires: 2004-03-14
Abstract
Abstract A color photographic silver halide light-sensitive material is described. The material includes a cyan coupler represented by the general formula (I): <IMAGE> (I) (the symbols are as described in the claims). This coupler is easily soluble in high boiling organic solvents, exhibits a high dye-forming rate in developers, and furthermore, provides color images of high fastness.
Inventors
- 👤 Kozo Aoki
- 👤 Akira Ogawa
- 👤 Osami Tanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:30
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/34; G03C7/346
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
111 words
A color photographic silver halide light-sensitive material, comprising: a support base having thereon: a silver halide emulsion layer comprised of silver halide particles dispersed in a binder; and a cyan dye-forming coupler represented by general formula (I): ##STR6## wherein R 1 is a hydrogen atom, a halogen atom, or an alkyl or alkoxy group having 1 to 20 carbon atoms, R 2 is an alkyl group having 1 to 20 carbon atoms, R 3 is a hydrogen atom, a halogen atom, or an alkyl group, X is a member to be released at the time of oxidative coupling with a developing agent, and n is an integer of 1 or 2.
Claim 2
Dependent Claim
111 words
A color photographic silver halide light-sensitive material, comprising: a support base having thereon: a silver halide emulsion layer comprised of silver halide particles dispersed in a binder; and a cyan dye-forming coupler represented by general formula (I): ##STR6## wherein R 1 is a hydrogen atom, a halogen atom, or an alkyl or alkoxy group having 1 to 20 carbon atoms, R 2 is an alkyl group having 1 to 20 carbon atoms, R 3 is a hydrogen atom, a halogen atom, or an alkyl group, X is a member to be released at the time of oxidative coupling with a developing agent, and n is an integer of 1 or 2.
Claim 3
Dependent Claim
65 words
A material as claimed in claim 1, wherein X is a hydrogen atom, a halogen atom, an alkoxy group having 1 to 32 carbon atoms, an aryloxy group having 6 to 32 carbon atoms, an acyloxy group, a sulfonyloxy group, an amido group, an alkoxycarbonyloxy group having 2 to 33 carbon atoms, an aryloxycarbonyloxy group having 7 to 33 carbon atoms or an imido group.
Claim 4
Dependent Claim
24 words
A material as claimed in claim 1, wherein R 1 is a hydrogen atom, a halogen atom, a methyl group or a methoxy group.
Claim 5
Dependent Claim
23 words
A material as claimed in claim 1, wherein R 1 is connected at the ortho-position when R 1 is not a hydrogen atom.
Claim 6
Dependent Claim
16 words
A material as claimed in claim 1, wherein R 2 contains 8 to 20 carbon atoms.
Claim 7
Dependent Claim
21 words
A material as claimed in claim 1, wherein R 3 is a hydrogen atom, a halogen atom, or a methyl group.
Claim 8
Dependent Claim
17 words
A material as claimed in claim 1, wherein X is a hydrogen atom or a chlorine atom.
Claim 9
Dependent Claim
11 words
A material as claimed in claim 1, wherein n is 1.
Claim 10
Dependent Claim
33 words
A material as claimed in claim 1, wherein R 2 contains 8 to 20 carbon atoms, R 3 is hydrogen, X is a hydrogen atom or a chlorine atom and n is 1.
Claim 11
Dependent Claim
41 words
A material as claimed in claim 1, wherein the cyan dye-forming coupler of general formula (I) is present in an amount in the range of 2×10 -3 to 5×10 -1 mole per mole of silver in the silver halide emulsion layer.
Claim 12
Dependent Claim
37 words
A material as claimed in claim 10, wherein the cyan dye-forming coupler is present in an amount in the range of 1×10 -2 to 5×10 -1 mole per mole of silver in the silver halide emulsion layer.
Claim 13
Dependent Claim
37 words
A material as claimed in claim 9, wherein the cyan dye-forming coupler is present in an amount in the range of 1×10 -2 to 5×10 -1 mole per mole of silver in the silver halide emulsion layer.
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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |