US4873181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1988-05-31
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Granted: 1989-10-10
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Expires: 2008-05-31
Abstract
Abstract A silver halide photographic material is described, comprising a support bearing at least one silver halide photographic emulsion layer and at least one auxiliary layer on one side or both sides thereof, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.5 μm.
Inventors
- 👤 Nobuaki Miyasaka
- 👤 Shuzo Suga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:29
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/52; C07D263/54; C07D263/58; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/28; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/72; G; G03; G03C; G03C1/00; G03C1/005; G03C1/035; G03C1/06; G03C1/34; G03C1/346; G03C1/46; G03C2001/03558; Y; Y10; Y10S; Y10S430/00; Y10S430/162
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
291 words
A silver halide photographic material comprising a support bearing on at least one side thereof at least one silver halide photographic emulsion layer and at least one auxiliary layer, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.5μm and is provided outside of and on the same side of the support as a light sensitive emulsion layer which is the outermost light-sensitive emulsion layer from the support, and wherein the amount of the substantially non-light-sensitive silver halide grains coated is from 1×10 -4 to 1×10 -2 mol/m 2 and wherein said silver halide photographic material contains no metallic salts coated with a less solubilizing agent, wherein the substantially non-light-sensitive silver halide grains comprise at least 75 mol % silver chloride, and have absorbed on the surface thereof at least one compound represented by formula (I) ##STR3## wherein X is --O--, --NH-- or --S--; R 1 , R 2 , R 3 and R 4 each represents a hydrogen atom or a substituted group, at least one of R 1 , R 2 , R 3 and R 4 being a substituted or unsubstituted alkyl or aryl group having 13 carbon atoms or less which is linked, directly or through a divalent connecting group, to the benzene nucleus of formula (I); and X 1 represents a hydrogen atom or a cation necessary for rendering the molecule neutral.
Claim 2
Dependent Claim
291 words
A silver halide photographic material comprising a support bearing on at least one side thereof at least one silver halide photographic emulsion layer and at least one auxiliary layer, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.5μm and is provided outside of and on the same side of the support as a light sensitive emulsion layer which is the outermost light-sensitive emulsion layer from the support, and wherein the amount of the substantially non-light-sensitive silver halide grains coated is from 1×10 -4 to 1×10 -2 mol/m 2 and wherein said silver halide photographic material contains no metallic salts coated with a less solubilizing agent, wherein the substantially non-light-sensitive silver halide grains comprise at least 75 mol % silver chloride, and have absorbed on the surface thereof at least one compound represented by formula (I) ##STR3## wherein X is --O--, --NH-- or --S--; R 1 , R 2 , R 3 and R 4 each represents a hydrogen atom or a substituted group, at least one of R 1 , R 2 , R 3 and R 4 being a substituted or unsubstituted alkyl or aryl group having 13 carbon atoms or less which is linked, directly or through a divalent connecting group, to the benzene nucleus of formula (I); and X 1 represents a hydrogen atom or a cation necessary for rendering the molecule neutral.
Claim 3
Dependent Claim
96 words
A silver halide photographic material as in claim 1, wherein X is --NH--, and R 1 , R 2 , R 3 , and R 4 each represents a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy or aryloxy group, a sulfonyl group, a sulfonamido group, a sulfamoyl group, a carbamoyl group, an amido group, a ureido group, an aryloxycarbonylamino or alkoxycarbonylamino group, an aryloxycarbonyl or alkoxycarbonyl group, an arylaminocarbonyloxy or alkylaminocarbonyloxy group, a cyano group, or an alkylthio or arylthio group.
Claim 4
Dependent Claim
38 words
A silver halide photographic material as in claim 1, wherein the substantially non-light-sensitive silver halide grains are coated in an amount of from 0.2 to 20 wt % based on the total weight of the light-sensitive silver halide.
Claim 5
Dependent Claim
38 words
A silver halide photographic material as in claim 1, wherein the substantially non-light-sensitive silver halide grains are coated in an amount of from 0.7 to 7 wt % based on the total weight of the light-sensitive silver halide.
Claim 6
Dependent Claim
37 words
A silver halide photographic material as in claim 1, wherein said light-sensitive silver halide emulsion containing silver iodide has a sensitivity to visible light of at least 10 times that of said internally fogged silver halide emulsion.
Claim 7
Dependent Claim
199 words
A silver halide photographic material comprising a support bearing on at least one side thereof at least one silver halide photographic emulsion layer and at least one auxiliary layer, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.582 m and is provided outside of and on the same side of the support as a light sensitive emulsion layer which is the outermost light-sensitive emulsion layer from the support, and wherein the amount of the substantially non-light-sensitive silver halide grains coated is from 1×10 -4 to 1×10 -2 mol/m 2 and wherein said silver halide photographic material contains no metallic salts coated with a less solubilizing agent, wherein said light-sensitive silver halide emulsion containing silver iodide has a sensitivity to visible light of at least 100 times that of said internally fogged silver halide emulsion.
Claim 8
Dependent Claim
199 words
A silver halide photographic material comprising a support bearing on at least one side thereof at least one silver halide photographic emulsion layer and at least one auxiliary layer, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.582 m and is provided outside of and on the same side of the support as a light sensitive emulsion layer which is the outermost light-sensitive emulsion layer from the support, and wherein the amount of the substantially non-light-sensitive silver halide grains coated is from 1×10 -4 to 1×10 -2 mol/m 2 and wherein said silver halide photographic material contains no metallic salts coated with a less solubilizing agent, wherein said light-sensitive silver halide emulsion containing silver iodide has a sensitivity to visible light of at least 100 times that of said internally fogged silver halide emulsion.
Claim 9
Dependent Claim
17 words
A silver halide photographic material as in claim 1, wherein the light-sensitive silver halide is silver iodobromide.
Claim 10
Dependent Claim
26 words
A siver halide photographic material as in claim 1, wherein said internally fogged silver halide emulsion has an average grain size of from 1.0 to 0.05μm.
Claim 11
Dependent Claim
26 words
A silver halide photographic material as in claim 1, wherein said substantially non-light-sensitive silver halide grains have an average grain size of not more than 0.5μm.
Claim 12
Dependent Claim
207 words
A silver halide photographic material comprising a support bearing on at least one side thereof at least one silver halide photographic emulsion layer and at least one auxiliary layer, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.5μm and is provided outside of and on the same side of the support as a light sensitive emulsion layer which is the outermost light-sensitive emulsion layer from the support, and wherein the amount of the substantially non-light-sensitive silver halide grains coated is from 1×10 -4 to 1×10 -2 mol/m 2 and wherein said silver halide photographic material contains no metallic salts coated with a less solubilizing agent, wherein said photographic material comprises a support, an emulsion layer containing a light-sensitive silver halide containing silver iodide and an internally fogged silver halide, provided on the support, and an auxiliary layer provided on the emulsion layer.
Claim 13
Dependent Claim
207 words
A silver halide photographic material comprising a support bearing on at least one side thereof at least one silver halide photographic emulsion layer and at least one auxiliary layer, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.5μm and is provided outside of and on the same side of the support as a light sensitive emulsion layer which is the outermost light-sensitive emulsion layer from the support, and wherein the amount of the substantially non-light-sensitive silver halide grains coated is from 1×10 -4 to 1×10 -2 mol/m 2 and wherein said silver halide photographic material contains no metallic salts coated with a less solubilizing agent, wherein said photographic material comprises a support, an emulsion layer containing a light-sensitive silver halide containing silver iodide and an internally fogged silver halide, provided on the support, and an auxiliary layer provided on the emulsion layer.
Claim 14
Dependent Claim
29 words
A silver halide photographic material as in claim 10, wherein an emulsion layer containing a light-sensitive silver halide is further provided between the emulsion layer and the auxiliary layer.
Claim 15
Dependent Claim
56 words
A silver halide photographic material as in claim 1, wherein said photographic material comprises a support, an emulsion layer containing an internally fogged silver halide provided on the support, an emulsion layer containing a light-sensitive silver halide containing silver iodide provided on the above emulsion layer, and an auxiliary layer provided on the latter emulsion layer.
Claim 16
Dependent Claim
37 words
A silver halide photographic material as in claim 1, wherein the compound represented by formula (I) is used in an amount of from 1×10 -3 to 10 mols per mol of silver halide in the auxiliary layer.
Claim 17
Dependent Claim
176 words
A silver halide photographic material comprising a support bearing on at least one side thereof at least one silver halide photographic emulsion layer and at least one auxiliary layer, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.5μm and is provided outside of and on the same side of the support as a light sensitive emulsion layer which is the outermost light-sensitive emulsion layer from the support, wherein the amount of the substantially non-light-sensitive silver halide grains coated is from 1×10 -4 to 1×10 -2 and wherein iodides released from the exposed light-sensitive particles during development cause development of the internally-fogged silver halide particles present in the same or adjacent layer.
Claim 18
Dependent Claim
176 words
A silver halide photographic material comprising a support bearing on at least one side thereof at least one silver halide photographic emulsion layer and at least one auxiliary layer, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.5μm and is provided outside of and on the same side of the support as a light sensitive emulsion layer which is the outermost light-sensitive emulsion layer from the support, wherein the amount of the substantially non-light-sensitive silver halide grains coated is from 1×10 -4 to 1×10 -2 and wherein iodides released from the exposed light-sensitive particles during development cause development of the internally-fogged silver halide particles present in the same or adjacent layer.
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) | 1992-10-09 | 1993-04-10 | 1993-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-09 | 1997-04-10 | 1997-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-09 | 2001-04-10 | 2001-10-10 | $7700.00 | Window Closed / Lapsed |