US4654534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation image storage panel
Assignee: Fujifilm Holdings Corp
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Filing: 1984-10-10
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Granted: 1987-03-31
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Expires: 2004-10-10
Abstract
Abstract A radiation image storage panel comprising a substrate and a fluorescent layer provided thereon and consisting essentially of a binder and a stimulable phosphor dipsersed therein. The binder comprises linear polyester resin or linear polyester resin crosslinked with a crosslinking agent. The panel exhibits improved physical properties.
Inventors
- 👤 Takeji Ochiai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:48
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/16; G03C5/17; C; C09; C09K; C09K11/00; C09K11/02; G21; G21K; G21K4/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
A method of using a radiation image storage panel comprising a substrate and a fluorescent layer provided on said substrate, said fluorescent layer consisting essentially of a binder and a stimulable phosphor dispersed therein wherein said binder comprises linear polyester resin obtained by a polycondensation reaction of dihydroxy compound with dibasic acid or by polyaddition reaction of oxyacid, said method comprising the steps of (a) causing the stimulable phosphor of the panel to absorb a reaction passing through an object; (b) scanning the panel with an electromagnetic wave to sequentially release the radiation energy stored in the panel during step (a) as light emission; and (c) electrically converting the emitted light into an image.
Claim 2
Independent Claim
114 words
A method of using a radiation image storage panel comprising a substrate and a fluorescent layer provided on said substrate, said fluorescent layer consisting essentially of a binder and a stimulable phosphor dispersed therein wherein said binder comprises linear polyester resin obtained by a polycondensation reaction of dihydroxy compound with dibasic acid or by polyaddition reaction of oxyacid, said method comprising the steps of (a) causing the stimulable phosphor of the panel to absorb a reaction passing through an object; (b) scanning the panel with an electromagnetic wave to sequentially release the radiation energy stored in the panel during step (a) as light emission; and (c) electrically converting the emitted light into an image.
Claim 3
Dependent Claim
18 words
The method as claimed in claim 1, wherein said linear polyester resin is crosslinked with a crosslinking agent.
Claim 4
Dependent Claim
13 words
The method as claimed in claim 1, wherein said binder further comprises nitrocellulose.
Claim 5
Dependent Claim
13 words
The method as claimed in claim 2, wherein said crosslinking agent is diisocyanate.
References Cited (Backward Citations)
US4261854A
Cited
US4501971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |