US5145765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic material
Assignee: Fujifilm Corp
•
Filing: 1991-08-14
•
Granted: 1992-09-08
•
Expires: 2011-08-14
Abstract
Abstract A silver halide photographic material which contains (a) at least one redox compound capable of releasing a development inhibitor by oxidation and (b) at least one compound represented by the following general formula (I): ##STR1## wherein R 1 represents an aliphatic group, an aromatic group, or a heterocyclyl group; L 1 represents a divalent organic group; X 1 represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclyl group; and Y 1 represents --O--, --SO 2 NH-- or ##STR2## where Y 2 represents --O--, --NH--, or ##STR3##
Inventors
- 👤 Hisashi Okamura
- 👤 Kazunobu Katoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:50
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/061; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
245 words
A silver halide photographic material which contains (a) at least one redox compound represented by the following general formula (II): ##STR34## wherein both A 1 and A 2 represents hydrogen atoms, or one of them represents a hydrogen atom and the other represents a sulfinic acid residual group or ##STR35## wherein R 0 represents an alkyl group, an alkenyl group, an aryl group, an alkoxy group, or an aryloxy group, and l represents 1 or 2; TIME represents a divalent group which contains a hetero atom and which is bonded to the V group through the hetero atom; t represents 0 or 1; PUG represents a development inhibitor group which contains a hetero atom and which is bonded to either the TIME group or the V group through a hetero atom in the PUG; V represents a carbonyl group, ##STR36## a sulfonyl group, a sulfoxy group, ##STR37## wherein R 1 represents an alkoxy group or an aryloxy group, an iminomethylene group, or a thiocarbonyl group; and R represents an aliphatic group, an aromatic group, or a heterocyclic group; and (b) at least one compound represented by the following formula (I): ##STR38## wherein R 1 represents an aliphatic group, an aromatic group, or a heterocyclic group; L 1 represents an arylene group; X 1 represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group; and Y 1 represents --0--, --SO 2 NH-- or ##STR39## wherein Y 2 represents --O--, --NH--, or ##STR40##
Claim 2
Dependent Claim
245 words
A silver halide photographic material which contains (a) at least one redox compound represented by the following general formula (II): ##STR34## wherein both A 1 and A 2 represents hydrogen atoms, or one of them represents a hydrogen atom and the other represents a sulfinic acid residual group or ##STR35## wherein R 0 represents an alkyl group, an alkenyl group, an aryl group, an alkoxy group, or an aryloxy group, and l represents 1 or 2; TIME represents a divalent group which contains a hetero atom and which is bonded to the V group through the hetero atom; t represents 0 or 1; PUG represents a development inhibitor group which contains a hetero atom and which is bonded to either the TIME group or the V group through a hetero atom in the PUG; V represents a carbonyl group, ##STR36## a sulfonyl group, a sulfoxy group, ##STR37## wherein R 1 represents an alkoxy group or an aryloxy group, an iminomethylene group, or a thiocarbonyl group; and R represents an aliphatic group, an aromatic group, or a heterocyclic group; and (b) at least one compound represented by the following formula (I): ##STR38## wherein R 1 represents an aliphatic group, an aromatic group, or a heterocyclic group; L 1 represents an arylene group; X 1 represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group; and Y 1 represents --0--, --SO 2 NH-- or ##STR39## wherein Y 2 represents --O--, --NH--, or ##STR40##
References Cited (Backward Citations)
JPS62245263A
Cited
JPS6346450A
Cited
US4684604A
Cited
JPS6472140A
Cited
US4914002A
Cited
US4923787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-08 | 1996-03-09 | 1996-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-08 | 2000-03-09 | 2000-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-08 | 2004-03-09 | 2004-09-08 | $7700.00 | Window Closed / Lapsed |