US4847189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed processing silver halide photographic light-sensitive material
Assignee: Konica Minolta Inc
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Filing: 1988-03-09
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Granted: 1989-07-11
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Expires: 2008-03-09
Abstract
Abstract A silver halide photographic material is capable of super-rapid processing with the total time of 20 to 60 minutes and is high in sensitivity, low in fogginess and excellent in pressure resistance and graininess. The photographic material is comprises a support bearing a hydrophilic colloial layer including at least one light sensitive silver halide emulsion layer thereon, wherein silver halide grains contained in the silver halide emulsion layer are mainly comprised of tabular grains which have an aspect ratio of the grain size to the grain thickness of not lower than 5, and the projective areas of the whole tabular grain occupy not less than 50% of the projective areas of the whole silver halide grain in the emulsion layer, the melting time of the silver halide photographic light-sensitive material is within the range of from not shorter than 45 minutes, and on the side bearing the hydrophilic colloidal layer containing the silver halide emulsion layer, an amount of gelatin is within the range of from 2.00 to 3.20 g/m 2 .
Inventors
- 👤 Akio Suzuki
- 👤 Eiji Yoshida
- 👤 Satoru Nagasaki
- 👤 Masumi Arai
- 👤 Nobuaki Tsuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:35
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; Y; Y10; Y10S; Y10S430/00; Y10S430/167; Y10S430/168
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
146 words
A silver halide photographic light-sensitive material comprising a support bearing a hydrophilic colloidal layer including at least one light sensitive silver halide emulsion layer thereon, wherein silver halide grains contained in the said silver halide emulsion layer are mainly comprised of tabular grains which have an aspect ratio of the grain size to the grain thickness of not lower than 5, and the projective areas of the whole tabular grain occupy not less than 50% of the projective areasof the whole silver halide grain in said emulsion layer, the melting time of said silver halide photographic light-sensitive material is within the range of from not shorter than 8 minutes to not longer than 45 minutes, and on the side bearing the hydrophilic colloidal layer containing said silver halide emulsion layer, an amount of gelatin is within the range of from 2.00 to 3.20 g/m 2 .
Claim 2
Dependent Claim
146 words
A silver halide photographic light-sensitive material comprising a support bearing a hydrophilic colloidal layer including at least one light sensitive silver halide emulsion layer thereon, wherein silver halide grains contained in the said silver halide emulsion layer are mainly comprised of tabular grains which have an aspect ratio of the grain size to the grain thickness of not lower than 5, and the projective areas of the whole tabular grain occupy not less than 50% of the projective areasof the whole silver halide grain in said emulsion layer, the melting time of said silver halide photographic light-sensitive material is within the range of from not shorter than 8 minutes to not longer than 45 minutes, and on the side bearing the hydrophilic colloidal layer containing said silver halide emulsion layer, an amount of gelatin is within the range of from 2.00 to 3.20 g/m 2 .
Claim 3
Dependent Claim
44 words
The silver halide photographic light-sensitive material of claim 1, wherein at least one layer of said silver halide photographic light-sensitive material is hardened with at least one of the hardeners selected from the group consisting of vinylsulfon type hardeners and halogen substituted-s-triazine type hardeners.
Claim 4
Dependent Claim
26 words
The silver halide photographic light-sensitive material of claim 1, wherein said aspect ratio of the tabular grains is within the range of from 5 to 40.
Claim 5
Dependent Claim
26 words
The silver halide photographic light-sensitive material of claim 3, wherein said aspect ratio of the tabular grains is within the range of from 8 to 30.
Claim 6
Dependent Claim
21 words
The silver halide photographic light-sensitive material of claim 1, wherein the thickness of said tabular grains is thinner than 0.5 μm.
Claim 7
Dependent Claim
21 words
The silver halide photographic light-sensitive material of claim 5, wherein the thickness of said tabular grain is thinner than 0.3 μm.
Claim 8
Dependent Claim
22 words
The silver halide photographic light-sensitive material of claim 1, wherein the size of said tabular grains is not smaller than 0.6 μm.
Claim 9
Dependent Claim
22 words
The silver halide photographic light-sensitive material of claim 7, wherein the size of said tabular grains is not smaller than 0.8 μm.
Claim 10
Dependent Claim
26 words
The silver halide photographic light-sensitive material of claim 1, wherein an amount of gelatin is within the range of from 2.40 to 2.90 g/m 2 .
Claim 11
Dependent Claim
26 words
The silver halide photographic light-sensitive material of claim 9, wherein an amount of gelatin is within the range of from 2.50 to 2.80 g/m 2 .
Claim 12
Dependent Claim
18 words
The silver halide photographic light-sensitive material of claim 1, wherein said tabular grains are composed of silver iodobromide.
Claim 13
Dependent Claim
26 words
The silver halide photographic light-sensitive material of claim 11, wherein said tabular grains are composed of silver iodobromide containing 0 to 10 mol% of silver iodide.
Claim 14
Dependent Claim
26 words
The silver halide photographic light-sensitive material of claim 12, wherein said tabular grains are composed of silver iodobromide containing 0.1 to 6 mol% of silver iodide.
Claim 15
Independent Claim
174 words
A method for processing a silver halide photographic light-sensitive material comprising a support bearing a hydrophilic colloidal layer including at least one light sensitive silver halide emulsion layer thereon, wherein silver halide grains contained in the said silver halide emulsion layer are mainly comprised of tabular grains which have an aspect ratio of the grain size to the grain thickness of not lower than 5, and the projective areas of the whole tabular grain occupy not less than 50% of the projective areas of the whole silver halide grain in said emulsion layer, the melting time of said silver halide photographic light-sensitive material is within the range of from not shorter than 45 minutes, and on the side bearing the hydrophilic colloidal layer containing said silver halide emulsion layer, an amount of gelatin is within the range of from 2.00 to 3.20 g/m 2 ; in which said silver halide photographic material is processed with an automatic processor of which the whole processing time is within the range of from 20 to 60 seconds.
Claim 16
Independent Claim
174 words
A method for processing a silver halide photographic light-sensitive material comprising a support bearing a hydrophilic colloidal layer including at least one light sensitive silver halide emulsion layer thereon, wherein silver halide grains contained in the said silver halide emulsion layer are mainly comprised of tabular grains which have an aspect ratio of the grain size to the grain thickness of not lower than 5, and the projective areas of the whole tabular grain occupy not less than 50% of the projective areas of the whole silver halide grain in said emulsion layer, the melting time of said silver halide photographic light-sensitive material is within the range of from not shorter than 45 minutes, and on the side bearing the hydrophilic colloidal layer containing said silver halide emulsion layer, an amount of gelatin is within the range of from 2.00 to 3.20 g/m 2 ; in which said silver halide photographic material is processed with an automatic processor of which the whole processing time is within the range of from 20 to 60 seconds.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |