EP0126644A2
Expired / Lapsed
EP
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Light-sensitive silver halide photographic material for X-ray photography
Assignee: Konica Minolta Inc
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Filing: 1984-05-18
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Granted: —
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Expires: 2004-05-18
Abstract
Abstract Disclosed is a light-sensitive silver halide photographic material for X-ray photography, characterized in that the material has the characteristic curve whose gamma between optical densities of 0.50 and 1.50 is 2.7 to 3.3 and gamma between optical densities of 2.00 and 3.00 is 1.5 to 2.5, when processed by use of a prescribed developer.
Inventors
- 👤 Akio Suzuki
- 👤 Masatoshi Iwata
- 👤 Katsutoshi Machida
- 👤 Chika Honda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 18:24
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C5/00; G03C5/16; G03C2200/00; G03C2200/58; Y; Y10; Y10S; Y10S430/00; Y10S430/167; Y10S430/168
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
56 words
A light-sensitive silver halide photographic material for X-ray photogrphy, characterized in that the material has the characteristic curve whose gamma between optical densities of 0.50 and 1.50 is 2.7 to 3.3 and gamma between optical densities of 2.00 and 3.00 is 1.5 to 2.5, when processed by use of Developer-I having the composition shown below: Developer-I:
Claim 2
Dependent Claim
56 words
A light-sensitive silver halide photographic material for X-ray photogrphy, characterized in that the material has the characteristic curve whose gamma between optical densities of 0.50 and 1.50 is 2.7 to 3.3 and gamma between optical densities of 2.00 and 3.00 is 1.5 to 2.5, when processed by use of Developer-I having the composition shown below: Developer-I:
Claim 3
Dependent Claim
44 words
The light-sensitive silver halide photographic material according to Claim 1, wherein said gamma between optical densities of 0.50 and 1.50 is 2.8 to 3.1 and gamma between optical densities of 2.00 and 3.00 is 1.7 to 2.3, when processed by use of the Developer-I.
Claim 4
Dependent Claim
38 words
The light-sensitive silver halide photographic material according to Claim 1, wherein said characteristic curve is obtained by chemically sensitizing two or more kinds of monodispersed emulsions having mean grain sizes different from each other, followed by mixing them.
Claim 5
Dependent Claim
28 words
The light-sensitive silver halide photographic material according to Claim 3, wherein said monodispersed emulsions comprise two kinds of monodispersed emulsions having mean grain sizes different from each other.
Claim 6
Dependent Claim
53 words
The light-sensitive silver halide photographic material according to Claim 4, wherein the mean grain sizes of the two kinds of monodispersed emulsions ranges from 0.3 to 1.35 um and differentiate in such a mean grain size ratio of one of them to the other as being 1 : 1.2 to 1 : 2.4.
Claim 7
Dependent Claim
72 words
The light-sensitive silver halide photographic material according to Claim 5, wherein said two kinds of monodispersed emulsions comprise a monodispersed emulsion containing silver halide grains of a larger mean grain size and a monodispersed emulsion containing silver halide grains of a smaller mean grain size, and the former emulsion and the latter emulsion are mixed in the ratio of 2 : 1 to 5 : 1 as molar ratio of silver halide.
Claim 8
Dependent Claim
32 words
The light-sensitive silver halide photographic material according to Claim 6, wherein said emulsions are mixed in the ratio of 3 : 1 to 4 : 1 as molar ratio of silver halide.
Claim 9
Dependent Claim
68 words
The light-sensitive silver halide photographic material according to Claim 1, wherein said characteristic curve is obtained by chemically sensitizing a monodispersed emulsion of a mean grain size of 1.15 to 1.35 um and a monodispersed emulsion of a mean grain size of 0.65 to 0.75 µm, respectively, followed by mixing them in the ratio of 3 : 1 to 4 : 1 as molar ratio of silver halide.
Claim 10
Dependent Claim
52 words
The light-sensitive silver halide photographic material according to Claim 1, wherein said characteristic curve is obtained by chemically sensitizing a monodispersed emulsion containing grains of a larger mean grain size and a monodispersed emulsion or polydispersed emulsion containing silver halide grains of a smaller mean grain size, respectively, followed by mixing them.
Claim 11
Dependent Claim
49 words
The light-sensitive silver halide photographic material according to Claim 1, wherein said characteristic curve is obtained by chemically sensitizing a monodispersed emulsion containing grains of a larger mean grain size and a polydispersed emulsion containing silver halide grains of a smaller mean grain size, respectively, followed by mixing them.
Claim 12
Dependent Claim
54 words
The light-sensitive silver halide photographic material according to Claim 10, wherein the mean grain sizes of the polydispersed emulsion and the monodispersed emulsion may range from 0.3 to 1.35 um and differentiate in such a mean grain size ratio of the former to the latter as being 1 : 1.2 to 1 : 2.4.
Claim 13
Dependent Claim
37 words
The light-sensitive silver halide photographic material according to Claim 11, wherein the polydispersed emulsion and the monodispersed emulsion are mixed in the ratio of 2 : 1 to 5 : 1 as molar ratio of silver halide.
Claim 14
Dependent Claim
37 words
The light-sensitive silver halide photographic material according to Claim 12, wherein the polydispersed emulsion and the monodispersed emulsion are mixed in the ratio of 3 : 1 to 4 : 1 as molar ratio of silver halide.
Claim 15
Dependent Claim
68 words
The light-sensitive silver halide photographic material according to Claim 1, wherein said characteristic curve is obtained by chemically sensitizing a monodispersed emulsion of a mean grain size of 1.15 to 1.35 um and a polydispersed emulsion of a mean grain size of 0.55 to 0.75 um, respectively, followed by mixing them in the ratio of 3 : 1 to 4 : 1 as molar ratio of silver halide.
Claim 16
Dependent Claim
35 words
The light-sensitive silver halide photographic material according to Claim 1, wherein said light-sensitive material comprises a silver halide emulsion comprising a silver iodobromide emulsion containing not more than about 10 mole % of silver iodide.
References Cited (Backward Citations)
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