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Patent US4575635A successfully refreshed from Google Patents.
US4575635A
Expired / Lapsed
US
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Radiation image storage panel
Assignee: Fujifilm Holdings Corp
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Filing: 1983-05-18
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Granted: 1986-03-11
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Expires: 2003-05-18
Abstract
Abstract A radiation image storage panel comprising a support and at least one phosphor layer comprising a binder and a stimulable phosphor dispersed therein. The sharpness of image provided by the storage panel and the adhesion between the phosphor layer and the support are both remarkably improved by providing the surface of support with a great number of pits having a mean depth of at least 1 μm, a maimum depth of more than 1 to 100 μm, and a mean diameter at the opening of at least 1 μm.
Inventors
- 👤 Satoshi Arakawa
- 👤 Terumi Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:26
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/16; G03C5/17
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
74 words
A radiation image storage panel comprising a support and at least one phosphor layer comprising a binder and a stimulable phosphor dispersed therein, in which the support is provided on the surface facing the phosphor layer with a great number of pits having a mean depth of at least 1 μm, a maximum depth of more than 1 μm to 100 μm, and a mean diameter at the opening of at least 1 μm.
Claim 2
Dependent Claim
74 words
A radiation image storage panel comprising a support and at least one phosphor layer comprising a binder and a stimulable phosphor dispersed therein, in which the support is provided on the surface facing the phosphor layer with a great number of pits having a mean depth of at least 1 μm, a maximum depth of more than 1 μm to 100 μm, and a mean diameter at the opening of at least 1 μm.
Claim 3
Dependent Claim
39 words
The radiation image storage panel as claimed in claim 1, in which the pits have a mean depth of 1-10 μm, a maximum depth of more than 1-50 μm, and a mean diameter at the opening of 1-100 μm.
Claim 4
Dependent Claim
37 words
The radiation image storage panel as claimed in claim 2, in which the pits have a mean depth of 1-5 μm, a maximum depth of 2-20 μm, and a mean diameter at the opening of 10-50 μm.
Claim 5
Dependent Claim
25 words
The radiation image storage panel as claimed in any one of claims 1 through 3, in which the support is made of a plastic film.
Claim 6
Dependent Claim
27 words
The radiation image storage panel as claimed in any one of claims 1 through 3, in which the binder comprises a linear polyester as a principal component.
Claim 7
Dependent Claim
25 words
The radiation image storage panel as claimed in any one of claims 1 through 3, in which the binder comprises nitrocellulose as a principal component.
Claim 8
Dependent Claim
32 words
The radiation image storage panel as claimed in any one of claims 1 through 3, in which the binder comprises a mixture of a linear polyester and nitrocellulose as a principal component.
Claim 9
Dependent Claim
29 words
The radiation image storage panel as claimed in any one of claims 1 through 3, in which the stimulable phosphor is a divalent europium activated alkaline earth metal fluorohalide.
Claim 10
Dependent Claim
98 words
A process for the preparation of a radiation image storage panel comprising a support and at least one phosphor layer comprising a binder and a stimulable phosphor dispersed therein, in which the support is provided on the surface facing the phosphor layer with a great number of pits having a mean depth of at least 1 μm, a maximum depth of more than 1 μm to 100 μm, and a mean diameter at the opening of at least 1 μm, which comprises applying hard solid particles onto the surface of support at high speed to form the pits.
Claim 11
Dependent Claim
98 words
A process for the preparation of a radiation image storage panel comprising a support and at least one phosphor layer comprising a binder and a stimulable phosphor dispersed therein, in which the support is provided on the surface facing the phosphor layer with a great number of pits having a mean depth of at least 1 μm, a maximum depth of more than 1 μm to 100 μm, and a mean diameter at the opening of at least 1 μm, which comprises applying hard solid particles onto the surface of support at high speed to form the pits.
Claim 12
Dependent Claim
17 words
A process as claimed in claim 9, in which the support is made of a plastic film.
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) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |