Patent US4845369A successfully refreshed from Google Patents.
US4845369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation image storage panel having improved anti-static properties
Assignee: Fujifilm Holdings Corp
•
Filing: 1987-12-23
•
Granted: 1989-07-04
•
Expires: 2007-12-23
Abstract
Abstract A radiation image storage panel comprises a support made of a plastic film or a paper material, a stimulable phosphor layer and optionally one or more other layers. The radiation image storage panel contains a fibrous conductive material in at least one layer.
Inventors
- 👤 Satoshi Arakawa
- 👤 Katsuhiro Kohda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:28
CPC Classifications
G; G21; G21K; G21K4/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
A radiation image storage panel comprising a support made of a plastic film or a paper material and a stimulable phosphor layer provided on the support, wherein a fibrous conductive material is contained in at least a portion of said radiation image storage panel, and wherein said fibrous conductive material is in the form of a whisker of K 2 O·nTiO 2 or Na 2 O·nTiO 2 , where n is an integer from 1-8, which is treated with a material selected from the group consisting of C, Zn, O, SnO 2 , InO 2 and a mixed crystal of SnO 2 and InO 2 , said whisker having an average diameter of 0.1 to 1.0 μm and an average length of 5-50 μm.
Claim 2
Dependent Claim
124 words
A radiation image storage panel comprising a support made of a plastic film or a paper material and a stimulable phosphor layer provided on the support, wherein a fibrous conductive material is contained in at least a portion of said radiation image storage panel, and wherein said fibrous conductive material is in the form of a whisker of K 2 O·nTiO 2 or Na 2 O·nTiO 2 , where n is an integer from 1-8, which is treated with a material selected from the group consisting of C, Zn, O, SnO 2 , InO 2 and a mixed crystal of SnO 2 and InO 2 , said whisker having an average diameter of 0.1 to 1.0 μm and an average length of 5-50 μm.
Claim 3
Dependent Claim
31 words
The radiation image storage panel as claimed in claim 1, wherein said fibrous conductive material has a ratio of an average diameter to an average length of not less than 1/5.
Claim 4
Dependent Claim
33 words
The radiation image storage panel as claimed in claim 1, wherein said fibrous conductive material has a ratio of an average diameter to an average length in the range of 1/10 to 1/200.
Claim 5
Dependent Claim
38 words
The radiation image storage panel as claimed in claim 1, wherein said fibrous conductive material is contained in the stimulable phosphor layer and the stimulable phosphor layer has a surface resistivity of not higher than 10 12 ohm.
Claim 6
Dependent Claim
49 words
The radiation image storage panel as claimed in claim 1, wherein said panel comprises a support, an undercoating layer and a stimulable phosphor layer, superposed in order, said undercoating layer containing the fibrous conductive material, and surface resistivity of the undercoating layer is not higher than 10 12 ohm.
Claim 7
Dependent Claim
49 words
The radiation image storage panel as claimed in claim 1, wherein said panel comprises a support, a light-reflecting layer and a stimulable phosphor layer, superposed in order, said light-reflecting layer containing the fibrous conductive material, and surface resistivity of the light-reflecting layer is not higher than 10 12 ohm.
Claim 8
Dependent Claim
52 words
The radiation image storage panel as claimed in claim 1, wherein said panel comprises a support, a stimulable phosphor layer, an adhesive layer and a protective film, superposed in order, said adhesive layer containing the fibrous conductive material, and surface resistivity of the adhesive layer is not higher than 10 12 ohm.
Claim 9
Dependent Claim
49 words
The radiation image storage panel as claimed in claim 1, wherein a layer made of the fibrous conductive material is provided on the surface of the support not facing the stimulable phosphor layer and the surface resistivity of said fibrous conductive layer is not higher than 10 12 ohm.
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) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |