Patent US4766058A successfully refreshed from Google Patents.
US4766058A
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US
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Silver halide photographic material with a specified silver density and dry thickness
Assignee: Konica Minolta Inc
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Filing: 1986-07-16
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Granted: 1988-08-23
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Expires: 2006-07-16
Abstract
Abstract A photographic material comprising at least one blue sensitive silver halide emulsion layer is disclosed. The silver density of the emulsion layer is not less than 4.0×10 -1 g/cm 3 and the dry thickness of the layer is not more than 4.0 μm. A core/shell type silver halide emulsion and a high-speed reaction type scavenger for the oxidation products of a developing agent are preferably used for the emulsion layer. The photographic material has a high sensitivity and provides an image having a superior sharpness and resolution.
Inventors
- 👤 Takeshi Sampei
- 👤 Toshifumi Iijima
- 👤 Yoshitaka Yamada
- 👤 Hiroshi Shimazaki
- 👤 Kenji Kumashiro
- 👤 Yoshiharu Mochizuki
- 👤 Syoji Matsuzaka
- 👤 Hiroshi Kashiwagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:26
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3022
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
83 words
A silver halide photographic material comprising at least one blue-sensitive silver halide emulsion layer, silver density (d) expressed in terms of the following equation d=N/V (wherein, N is the amount of silver contained in said emulsion layer in term of gram and V is the volume of said blue-sensitive emulsion layer in term of cm 3 ) of said emulsion layer being 4.0×10 -1 g/cm 3 to 1.2 g/cm 3 and the dry-thickness of said emulsion layer being 0.8 μm to 4.0 μm.
Claim 2
Dependent Claim
83 words
A silver halide photographic material comprising at least one blue-sensitive silver halide emulsion layer, silver density (d) expressed in terms of the following equation d=N/V (wherein, N is the amount of silver contained in said emulsion layer in term of gram and V is the volume of said blue-sensitive emulsion layer in term of cm 3 ) of said emulsion layer being 4.0×10 -1 g/cm 3 to 1.2 g/cm 3 and the dry-thickness of said emulsion layer being 0.8 μm to 4.0 μm.
Claim 3
Dependent Claim
29 words
The silver halide photographic material of claim 2, wherein said density of silver d is within the range of from 5.0×10 -1 g/cm 3 to 1.2 g/cm 3 .
Claim 4
Dependent Claim
26 words
The silver halide photographic material of claim 1, wherein said dry-thickness of the emulsion layer is within the range of from 1.0 μm to 3.8 μm.
Claim 5
Dependent Claim
95 words
The silver halide photographic material of claim 1, wherein a silver halide grain comprised in said blue-sensitive emulsion layer is constructed by a core essentially consisting of silver bromide and/or silver iodobromide and a plurality of shells essentially consisting of silver bromide and/or silver iodobromide provided on said core, provided that a content of silver iodide of the outermost shell is not more than 10 mol % and a silver iodide content of a shell provided inside of said outermost shell is not less than 6 mol % higher than that of said outermost shell.
Claim 6
Dependent Claim
17 words
The silver halide photographic material in claim 1, wherein said emulsion layer contains an acylacetoanilide-type yellow coupler.
Claim 7
Dependent Claim
18 words
The silver halide photographic material of claim 5, wherein said acylacetoanilide-type yellow coupler is a benzoylacetoanilide-type yellow couplers.
Claim 8
Dependent Claim
18 words
The silver halide photographic material of claim 5, wherein said acylacetoanilide-type yellow coupler is a pivaloylacetoanilide-type yellow couplers.
Claim 9
Dependent Claim
32 words
The silver halide photographic material of claim 5, 7, wherein a content of said yellow coupler in said emulsion layer is from 0.1 to 30 moles per mole of silver contained therein.
Claim 10
Dependent Claim
36 words
The silver halide photographic material of claim 1, wherein said blue-sentitive silver halide emulsion layer contains a high speed reactive scavenger of which relative reaction rate is not less than 1.6 and not more than 15.0.
Claim 11
Dependent Claim
26 words
The silver halide photographic material of claim 1, wherein said silver halide photographic material further comprises a non-photosensitive layer adjacently provided with said blue-sensitive emulsion layer.
Claim 12
Dependent Claim
26 words
The silver halide photographic material of claim 10, wherein at least one of said layers, the blue-sensitive emulsion layer, and the non-photosensitive layer, contains said scavenger.
Claim 13
Dependent Claim
152 words
The silver halide photographic material of claim 9, wherein said scavenger is selected from the compounds represented the general formula [I] to [V]: ##STR14## wherein R 1 and R 2 is independently selected from an aryl group and an alkyl group, ##STR15## wherein R 3 is selected from --OR' and --NHR' and R' is selected from an aryl group and an alkyl group, ##STR16## wherein R 4 is an alkylene group and R 5 is selected from an alkyl group and an aryl group, ##STR17## wherein R 6 is selected from ##STR18## and --NH(CH 2 ) 2 COOH and R 7 is selected from an alkyl group and an aryl group, ##STR19## wherein R 8 is selected from a hydrogen atom, a halogen atom, a sulfo group and acylamino group, R 9 is selected from an alkyl group and an alkoxy group and R 10 and R 11 are an alkyl group.
Claim 14
Dependent Claim
31 words
The silver halide photographic material of claim 6, wherein a content of said yellow coupler in said emulsion layer is from 0.1 to 30 moles per mole of silver contained therein.
Claim 15
Dependent Claim
31 words
The silver halide photographic material of claim 7, wherein a content of said yellow coupler in said emulsion layer is from 0.1 to 30 moles per mole of silver contained therein.
Claim 16
Dependent Claim
154 words
The silver halide photographic material of claim 9, wherein said scavenger is selected from the compounds represented the general formula [I] to [V]: ##STR20## wherein R 1 and R 2 is independently selected from an aryl group and an alkyl group, ##STR21## wherein R 3 is selected from --OR' and --NHR' and R' is selected from an aryl group and an alkyl group, ##STR22## wherein R 4 is an alkylene group and R 5 is selected from an alkyl group and an aryl group, ##STR23## wherein R 6 is selected from ##STR24## --SO 3 H, and --NH(CH 2 ) 2 COOH and R 7 is selected from an alkyl group and an aryl group, ##STR25## wherein R 8 is selected from a hydrogen atom, a halogen atom, a sulfo group and acylamino group, R 9 is selected from an alkyl group and an alkoxy group and R 10 and R 11 are alkyl group.
Claim 17
Dependent Claim
151 words
The silver halide photographic material of claim 11, wherein said scavenger is selected from the compounds represented the general formula [I] to [V]: ##STR26## wherein R 1 and R 2 is independently selected from an aryl group and an alkyl group, ##STR27## wherein R 3 is seclected from --OR' and --NHR' and R' is selected from an aryl group and an alkyl group, ##STR28## wherein R 4 is an alkylene group and R 5 is selected from an alkyl group and an aryl group, ##STR29## wherein R 6 is selected from ##STR30## and --NH(CH 2 ) 2 COOH and R 7 is selected from an alkyl group and an aryl group, ##STR31## wherein R 8 is selected from a hydrogen atom, a halogen atom, a sulfo group and acylamino group, R 9 is selected from an alkyl group and an alkoxy group and R 10 and R 11 are alkyl group.
Claim 18
Dependent Claim
154 words
The silver halide photographic material of claim 11 wherein said scavenger is selected from the compounds represented by the general formula [I] to [V]: ##STR32## wherein R 1 and R 2 is independently selected from an aryl group and an alkyl group, ##STR33## wherein R 3 is selected from --OR' and --NHR' and R' is selected from an aryl group and an alkyl group, ##STR34## wherein R 4 is an alkylene group and R 5 is selected from an alkyl group and an aryl group, ##STR35## wherein R 6 is selected from --OH, ##STR36## and --NH(CH 2 ) 2 COOH and R 7 is selected from an alkyl group and an aryl group, ##STR37## wherein R 8 is selected from a hydrogen atom, a halogen atom, a sulfo group and acylamino group, R 9 is selected from an alkyl group and an alkoxy group and R 10 and R 11 are an alkyl group.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |