Patent US1490201A successfully refreshed from Google Patents.
Patent FR676431A successfully refreshed from Google Patents.
Patent US5024932A successfully refreshed from Google Patents.
US5024932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive silver halide photographic material
Assignee: Konica Minolta Inc
•
Filing: 1990-02-26
•
Granted: 1991-06-18
•
Expires: 2010-02-26
Abstract
Abstract A light-sensitive silver halide photographic material having a support and, provided thereon, photographic component layers including at least one light-sensitive silver halide emulsion layer containing silver halide grains having a silver chloride content of not less tha 90 mole % and having been subjected to gold sensitization, said photographic component layer containing a gelatin of which isoelectric point being 4.0 to 5.0 and the film pH of said photographic component layer being not more than 6.0.
Inventors
- 👤 Masaki Tanji
- 👤 Toyoki Nishijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:24
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/047; G03C1/035; G03C2001/0471
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
76 words
A light-sensitive silver halide photographic material comprising a support and provided thereon photographic component layers including at least one light-sensitive silver halide emulsion layer containing sillver halide grains having a silver chloride content of not less than 90 mole % and having been subjected to gold sensitization, said photographic component layer containing a gelatin of which isoelectric point being 4.0 to 5.0 and the film pH of said photographic component layer being not more than 6.0.
Claim 2
Dependent Claim
76 words
A light-sensitive silver halide photographic material comprising a support and provided thereon photographic component layers including at least one light-sensitive silver halide emulsion layer containing sillver halide grains having a silver chloride content of not less than 90 mole % and having been subjected to gold sensitization, said photographic component layer containing a gelatin of which isoelectric point being 4.0 to 5.0 and the film pH of said photographic component layer being not more than 6.0.
Claim 3
Dependent Claim
33 words
The light-sensitive silver halide photographic material of claim 1, wherein said silver halide contains not more than 10 mole % of silver bromide and not more than 0.5 mole % of silver iodide.
Claim 4
Dependent Claim
26 words
The light-sensitive silver halide photographic material of claim 1, wherein said silver halide is a silver chlorobromide containing 0.1 to 2 mole % of silver bromide.
Claim 5
Dependent Claim
41 words
The light-sensitive silver halide photographic material of claim 1, wherein said silver halide grains are present at a proportion of not less than 60% by weight with respect to the total silver halide grains present in said silver halide emulsion layer.
Claim 6
Dependent Claim
19 words
The light-sensitive silver halide photographic material of claim 4, wherein the proportion is not less than 80% by weight.
Claim 7
Dependent Claim
26 words
The light-sensitive silver halide photographic material of claim 1, wherein said light-sensitive silver halide emulsion layer has been sensitized by the use of a chalcogen sensitizer.
Claim 8
Dependent Claim
23 words
The light-sensitive silver halide photographic material of claim 6, wherein said chalcogen sensitizer is selected from a sulfur sensitizer and a selenium sensitizer.
Claim 9
Dependent Claim
32 words
The light-sensitive silver halide photographic material of claim 1, wherein said gold sensitizer is used in an amount of 10 -8 mole to 10 -1 mole per 1 mole of silver halide.
Claim 10
Dependent Claim
32 words
The light-sensitive silver halide photographic material of claim 8, wherein said gold sensitizer is used in an amount of 10 -7 mole to 10 -2 mole per 1 mole of silver halide.
Claim 11
Dependent Claim
17 words
The light-sensitive silver halide photographic material of claim 7, wherein said chalcogen sensitizer is a sulfur sensitizer.
Claim 12
Dependent Claim
32 words
The light-sensitive silver halide photographic material of claim 10, wherein said sulfur sensitizer is used in an amount of 10 -7 mole to 10 -1 mole per 1 mole of silver halide.
Claim 13
Dependent Claim
27 words
The light-sensitive silver halide photographic material of claim 1, wherein said light-sensitive silver halide emulsion layer has been hardened by the use of a chlorotriazine gelatine hardener.
Claim 14
Dependent Claim
180 words
The light-sensitive silver halide photographic material of claim 12, wherein said chlorotriazine compound is represented by the general formula [HDA] or [HDB]; ##STR14## wherein R 1 and R 2 independently represent a chlorine atom, a hydroxyl group, an alkyl group, an alkoxy group, an --OM group, in which M is a mono-valent metal atom, a --NR 3 R 4 group in which R 3 and R 4 independently represent a hydrogen atom, an alkyl group, or an aryl group, or a --NHCOR 5 group, in which R 5 is a hydrogen atom, an alkyl group, an aryl group or an alkylthio group, provided that R 1 and R 2 are not simultaneously chlorine atoms; and ##STR15## wherein R 6 and R 7 independently represent a chlorine atom, a hydroxyl group, an alkyl group, an alkoxy group, or an --OM group, in which M is a mono-valent metal atom, Q and Q' independently represent a linkage group selected from --O--, --S-- and --NH--, L represents an alkylene group or an arylene group, and p and q are independently 0 or 1.
References Cited (Backward Citations)
US4564591A
Cited
US4621041A
Cited
US4621041B1
Cited
US4661441A
Cited
US4640890A
Cited
US4917994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-17 | 1994-12-17 | 1995-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-17 | 1998-12-17 | 1999-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-17 | 2002-12-17 | 2003-06-18 | $7700.00 | Window Closed / Lapsed |