US4362810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming a cyan dye image
Assignee: Konica Minolta Inc
•
Filing: 1981-01-09
•
Granted: 1982-12-07
•
Expires: 2001-01-09
Abstract
Abstract A method of forming a cyan dye image by development of an exposed silver halide photographic material with a developer containing a 2,5-diacylaminophenol cyan coupler containing a substituted alkylsulfonylamino terminal moiety or a substituted alkylaminosulfonyl terminal moiety in the 2- or 5- position.
Inventors
- 👤 Yasushi Usagawa
- 👤 Wataru Fujimatsu
- 👤 Osamu Sasaki
- 👤 Katsumi Matsuura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:56
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/34; G03C7/346
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
56 words
A method for forming a cyan dye image which method consists developing an imagewisely exposed silver halide emulsion layer with an aromatic primary amine color developing agent in the presence of a 2,5-diacylaminophenol cyan coupler containing a substituted alkylsulfonylamino terminal moiety or a substituted alkylaminosulfonyl terminal moiety in the 2- or 5- position of the molecule.
Claim 2
Independent Claim
56 words
A method for forming a cyan dye image which method consists developing an imagewisely exposed silver halide emulsion layer with an aromatic primary amine color developing agent in the presence of a 2,5-diacylaminophenol cyan coupler containing a substituted alkylsulfonylamino terminal moiety or a substituted alkylaminosulfonyl terminal moiety in the 2- or 5- position of the molecule.
Claim 3
Dependent Claim
87 words
A method according to claim 1 wherein the 2,5-diacylaminophenol cyan coupler is represented by the formula [I] or [II]: ##STR87## wherein, R represents hydrogen atom, or alkyl group haveing 1 to 20 numbers of carbon; R 1 represents substituted alkylsulfonylamino group or substituted alkylaminosulfonyl group; R 2 represents alkyl group, aryl group, or heterocyclic group; R 3 represents hydrogen atom or halogen atom; X represent phenylene group, naphthylene group or alkylene group; Z represents a coupling-off group; and n has an integral value of 1 or 2.
Claim 4
Dependent Claim
87 words
A method according to claim 2, wherein R 1 is Y--R.sub.4 --SO.sub.2 NH--or Y--R.sub.4 --NHSO.sub.2 -- wherein R 4 is alkylene, Y is selected from a group consisting of R'O--, R'COO--, R'OCO--, R'S--, R'SO 2 --, R'CO--, ##STR88## R'OSO 2 --, R'SO 2 O--, O 2 N--, and halogen, wherein each of R' and R" is hydrogen, alkyl, phenyl or 4 to 6 membered heterocycle containing oxygen, nitrogen or sulfur or R' and R" together form a 4 to 6 membered heterocycle containing oxygen, nitrogen or sulfur.
Claim 5
Dependent Claim
12 words
A method according to claim 2 wherein X is a phenylene group.
Claim 6
Dependent Claim
27 words
A method according to claim 3 wherein R 1 is Y--R.sub.4 --SO.sub.2 NH-- wherein Y and R 4 have the same meanings as defined in claim 3.
Claim 7
Dependent Claim
22 words
A method according to claim 2 wherein the 2,5-diacylaminophenol cyan conpler is represented by the formula [I] as defined in claim 2.
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) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |