US3753714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image formation by radiation and intensification
Assignee: Fujifilm Holdings Corp
•
Filing: 1970-11-23
•
Granted: 1973-08-21
•
Expires: 1990-11-23
Abstract
Abstract A method for forming an image by radiation, which comprises: A. CLOSELY CONTACTING A PHOTOGRAPHIC LIGHT-SENSITIVE MATERIAL HAVING A SILVER HALIDE EMULSION LAYER ON ONLY ONE SIDE OF A SUPPORT THEREOF WITH A FLUORESCENT INTENSIFYING SCREEN, AND B. SUBSEQUENTLY SUBJECTING THE LIGHT-SENSITIVE MATERIAL TO THE STEPS OF: C. RADIATION D. DEVELOPMENT E. FIXATION, AND F. INTENSIFICATION, SAID RESULTING COMBINATION CHARACTERIZED IN THAT THE EMULSION SURFACE AND FLUORESCENT SURFACE ARE FACING EACH OTHER.
Inventors
- 👤 M Sugiyama
- 👤 M Sonoda
- 👤 I Fujimura
- 👤 M Takano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:48
CPC Classifications
G; G21; G21K; G21K4/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
16 words
The method of claim 1 wherein said intensification is carried out with a heavy metal salt.
Claim 2
Dependent Claim
11 words
subsequently subjecting the photographic light-sensitive material to the sequential steps of:
Claim 3
Dependent Claim
1 words
radiation,
Claim 4
Dependent Claim
25 words
The method of claim 2 wherein the heavy metal is a member selected from the group consisting of Hg, Cr, Fe, Cu, Pb and U.
Claim 5
Dependent Claim
21 words
The method of claim 1 wherein said intensifying screen further consists essentially of a protective layer coated on said metal lattice.
Claim 6
Dependent Claim
1 words
development,
Claim 7
Dependent Claim
2 words
fixation, and
Claim 8
Dependent Claim
20 words
The method of claim 1 wherein the thickness of the fluorescent material ranges from 10 Mu - 300 Mu .
Claim 9
Dependent Claim
24 words
The method of claim 1 wherein the distance i between the metal walls of the lattice ranges from 10 Mu - 200 Mu .
Claim 10
Dependent Claim
17 words
intensification, wherein, the resulting combination, said silver halide emulsion and the fluorescent material are facing each other.
Claim 11
Dependent Claim
24 words
The method of claim 1 wherein the width m of the metal wall of the lattice ranges from 5 Mu - 100 Mu .
Claim 12
Dependent Claim
15 words
The method of claim 1 wherein the silver halide emulsion is a gelatino-silver halide emulsion.
Claim 13
Dependent Claim
13 words
The method of claim 8 wherein the silver halide is a gelatino-silver iodobromide.
Claim 14
Dependent Claim
29 words
The method of claim 1 wherein the silver halide emulsion contains a protective colloid selected from the group consisting of polyvinyl alcohol, polyvinyl imidazole and mixtures thereof with gelatin.
Claim 15
Dependent Claim
39 words
The method of claim 1 wherein the support of said photographic light-sensitive material is composed of a member selected from the group consisting of glass, baryta paper, cellulose acetate film, polyethylene terephthalate film, synthetic paper and laminated sheets thereof.
Claim 16
Dependent Claim
29 words
The method of claim 1 wherein the metal making up the metal walls of the lattice is a member selected from the group consisting of heavy metals and aluminum.
Claim 17
Dependent Claim
24 words
The method of claim 1 wherein the developing step is carried out with a developer selected from the group consisting of hydroquinone and p-amino-phenol.
Claim 18
Dependent Claim
34 words
The method of claim 1 wherein the fixation step is carried out with a fixing solution containing as the esSential component, a member selected from the group consisting of ammonium thiosulfate and sodium thiosulfate.
Claim 19
Dependent Claim
38 words
The method of claim 1 wherein said intensifying screen consists essentially of a support, a layer of fluorescent material coated thereon and a protective layer containing a metal lattice pattern therein coated on said layer of fluorescent material.
Claim 20
Dependent Claim
22 words
The method of claim 15 wherein said metal lattice pattern has a transparency to actinic light of from 1 to 30 percent.
Claim 21
Dependent Claim
21 words
The method of claim 1 wherein the transparency of said metal lattic to actinic light is from 0 to 30 percent.
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US2887379A
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US2968725A
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US3185841A
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US3344276A
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US3617285A
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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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |