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US4769549A Expired / Lapsed US ⏱️ 0.0 years remaining

Radiation image storage panel and process for making the same

Assignee: Konica Minolta Inc
•
Filing: 1987-06-12
•
Granted: 1988-09-06
•
Expires: 2007-06-12
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Abstract

Abstract There are disclosed a radiation image storage panel which comprises a stimulable phosphor layer on a support, wherein the stimulable phosphor layer has a fine pillar-shaped block structure, and a process of making a radiation image storage panel having a stimulable phosphor layer on a support, which comprises getting the stimulable phosphor layer having a fine pillar-shaped block structure. Scattering of the stimulation exciting light within the stimulable phosphor layer of the present invention can be markedly reduced since the stimulable phosphor layer has a block structure shaped in fine pillars, whereby it is possible to improve sharpness of the image. Also, radiation sensitivity and graininess of the image can be improved by enlargement of the stimulable phosphor layer without lowering sharpness of the image since lowering in sharpness of the image due to increase of the stimulable phosphor layer is little.

Inventors

  • 👤 Hisanori Tsuchino
  • 👤 Akiko Kano
  • 👤 Koji Amitani
  • 👤 Fumio Shimada

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 04:37
CPC Classifications
G; G21; G21K; G21K4/00

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 44 words
A radiation image storage panel having a stimulable phosphor layer on a support, wherein said stimulable phosphor layer has a fine pillar-shaped block structure, with pillar-shaped blocks in said structure being separated from each other by gaps having widths of 0.01 to 20 μm.
Claim 2
Dependent Claim 44 words
A radiation image storage panel having a stimulable phosphor layer on a support, wherein said stimulable phosphor layer has a fine pillar-shaped block structure, with pillar-shaped blocks in said structure being separated from each other by gaps having widths of 0.01 to 20 μm.
Claim 3
Dependent Claim 20 words
A radiation image storage panel according to claim 1, wherein pillar-shaped blocks in said structure extend perpendicularly to said support.
Claim 4
Dependent Claim 23 words
A radiation image storage panel according to claim 1, wherein said panel comprises the support, the surface of which has a concavo-convex pattern.
Claim 5
Dependent Claim 27 words
A radiation image storage panel according to claim 3, wherein said surface comprises a large number of fine tiles separated from each other by a fine space.
Claim 6
Dependent Claim 17 words
A radiation image storage panel according to claim 4, wherein said surface is composed of aluminum oxide.
Claim 7
Dependent Claim 22 words
A radiation image storage panel according to claim 4, wherein said panel comprises a net with fine strings to surround said structure.
Claim 8
Dependent Claim 21 words
A radiation image storage panel according to claim 1, wherein said panel comprises a support having a fine mesh pressed thereon.
Claim 9
Dependent Claim 26 words
A radiation image storage panel according to claim 1, wherein said stimulable phosphor layer has a thickness in the range of 10 μm to 1000 μm.
Claim 10
Dependent Claim 29 words
A radiation image storage panel according to claim 1, wherein the diameter of each of said fine pillar-shaped blocks is in the range of 1 μm to 400 μm.
Claim 11
Dependent Claim 20 words
A radiation image storage panel according to claim 1, wherein said support has particles of impurities on the surface thereof.
Claim 12
Dependent Claim 21 words
A radiation image storage panel according to claim 1, wherein said stimulable phosphor layer has crevasses developed from a surface thereof.

References Cited (Backward Citations)

US3859527A Cited
US4011454A Cited
US4287230A Cited
US4209705A Cited
US4236078A Cited
US4236078B1 Cited
US4350893A Cited
EP0126564A2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-09-06 1992-03-07 1992-09-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-09-06 1996-03-07 1996-09-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-09-06 2000-03-07 2000-09-06 $7700.00 Window Closed / Lapsed

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