Patent US4009035A successfully refreshed from Google Patents.
US4009035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming cyan dye photographic images
Assignee: Konica Minolta Inc
•
Filing: 1975-01-22
•
Granted: 1977-02-22
•
Expires: 1995-01-22
Abstract
Abstract A cyan coupler of the formula A -- NHCO(CF 2 CF 2 ) n H wherein A is a phenolic or naphtholic cyan coupler residue and n is a positive integer of 1 to 7, incorporated in a light-sensitive silver halide photographic material produces a cyan dye photographic image which is favorable in light absorption characteristics and excellent in fastness when the coupler is developed with an aromatic primary amine type developing agent.
Inventors
- 👤 Tamotsu Kojima
- 👤 Shui Sato
- 👤 Takaya Endo
- 👤 Tugumoto Usui
- 👤 Tomio Horiuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:24
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/34; G03C7/346; C; C07; C07C; C07C53/00; C07C53/38; C07C53/46; C07C53/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
67 words
A process for forming a cyan dye photographic image, which comprises bringing a monohydro-polyfluoroalkylcarbonamido compound of the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naptholic cyan coupler residue and n is a positive integer of 1 to 7, into contact with exposed silver halide crystals in the presence of an aromatic primary amine type color developing agent for said silver halide crystals.
Claim 2
Dependent Claim
67 words
A process for forming a cyan dye photographic image, which comprises bringing a monohydro-polyfluoroalkylcarbonamido compound of the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naptholic cyan coupler residue and n is a positive integer of 1 to 7, into contact with exposed silver halide crystals in the presence of an aromatic primary amine type color developing agent for said silver halide crystals.
Claim 3
Dependent Claim
61 words
A light-sensitive silver halide photographic material having a support and coated thereon a light-sensitive silver halide emulsion layer containing as a cyan coupler a compound having a monohydro-polyfluoroalkylcarbonamido group, said compound being represented by the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naphtholic cyan coupler residue and n is a positive integer of 1 to 7.
Claim 4
Dependent Claim
61 words
A light-sensitive silver halide photographic material having a support and coated thereon a light-sensitive silver halide emulsion layer containing as a cyan coupler a compound having a monohydro-polyfluoroalkylcarbonamido group, said compound being represented by the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naphtholic cyan coupler residue and n is a positive integer of 1 to 7.
Claim 5
Dependent Claim
61 words
A color developer for developing exposed light-sensitive silver halide color photographic material, which comprises an aromatic primary amine type color developing agent and a compound having a monohydro-polyfluoroalkylcarbonamido group, said compound being represented by the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naphtholic cyan coupler residue and n is a positive integer of 1 to 7.
Claim 6
Dependent Claim
61 words
A color developer for developing exposed light-sensitive silver halide color photographic material, which comprises an aromatic primary amine type color developing agent and a compound having a monohydro-polyfluoroalkylcarbonamido group, said compound being represented by the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naphtholic cyan coupler residue and n is a positive integer of 1 to 7.
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) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |