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US5145765A Expired / Lapsed US ⏱️ 0.0 years remaining

Silver halide photographic material

Assignee: Fujifilm Corp
•
Filing: 1991-08-14
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Granted: 1992-09-08
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Expires: 2011-08-14
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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

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