公开(公告)号：US4772803A

公开(公告)日：1988-09-20

申请号：US54035

申请日：1987-05-22

申请人： Hidenaga Horiuchi ,  Yuji Aoki ,  Akio Umemoto

发明人： Hidenaga Horiuchi ,  Yuji Aoki ,  Akio Umemoto

IPC分类号： G21K4/00 ,  G01J1/58

CPC分类号： G21K4/00

摘要： A gradient intensifying screen comprising a support, a fluorescent layer formed on the support and a transparent protective layer formed on the fluorescent layer, characterized in that at least a part of the transparent protective layer is dyed with a dyestuff so that the light transmission of the transparent protective layer is partially varied.

摘要翻译： 一种梯度增强屏幕，包括支撑体，形成在所述支撑体上的荧光层和形成在所述荧光层上的透明保护层，其特征在于，所述透明保护层的至少一部分用染料染色，使得所述透光层 透明保护层部分变化。

公开(公告)号：US4696868A

公开(公告)日：1987-09-29

申请号：US912515

申请日：1986-09-29

申请人： Yuji Aoki ,  Hidenaga Horiuchi ,  Akio Umemoto ,  Norio Miura

发明人： Yuji Aoki ,  Hidenaga Horiuchi ,  Akio Umemoto ,  Norio Miura

IPC分类号： G03C5/17 ,  G21K4/00 ,  H05B33/00

CPC分类号： G21K4/00 ,  G03C5/17

摘要： An intensifying screen comprising: a support, a fluorescent layer on the support and a protective layer on the fluorescent layer, wherein the fluorescent layer is composed essentially of a blue emitting phosphor selected from the group consisting of (1) a M.sup.II WO.sub.4 phosphor wherein M.sup.II is at least one of Mg, Ca, Zn and Cd, (2) a CaWO.sub.4 phosphor, (3) a BaSO.sub.4 :Pb phosphor, (4) a BaSO.sub.4 :Eu.sup.2+ phosphor, (5) a (Ba, Sr)SO.sub.4 :Eu.sup.2+ phosphor, (6) a MeF.sub.2.pMe'X.sub.2.qKX'.rMe"SO.sub.4 :mEu.sup.2+, nTb.sup.3+ phosphor, wherein Me is at least one of Mg, Ca, Sr and Ba, each of Me' and Me" is at least one of Ca, Sr and Ba, each of X and X' is at least one of Cl and Br, and p, q, r, m and n are numbers which satisfy the conditions of 0.80.ltoreq.p.ltoreq.1.5, 0.ltoreq.q.ltoreq.2.0, 0.ltoreq.r.ltoreq.1.0, 0.001.ltoreq.m.ltoreq.0.10 and 0.ltoreq.n.ltoreq.0.05, respectively, provided q+r.noteq.0, (7) a LnOX:Tm phosphor wherein Ln is La or Gd, and X is Cl or Br, (8) a Ln(Ta.sub.1-x, Nb.sub.x)O.sub.4 :Tm phosphor wherein Ln is at least one of La, Y Gd and Lu, and 0.ltoreq.x.ltoreq.0.3, (9) a Y.sub.2 O.sub.2 S:Tb phosphor, (10) a CsI:Na phosphor, (11) a CsI:T1 phosphor, (12) a NaI phosphor, (13) a ZnS:Ag phosphor and (14) a HfP.sub.2 O.sub.7 : Cu phosphor, and wherein at least one of the fluorescent and protective layers is colored with a colorant which has a main absorption peak at a wavelength in the region of 400 to 600 nm.

摘要翻译： 一种增强屏幕，包括：支撑体，支撑体上的荧光层和荧光层上的保护层，其中荧光层基本上由选自以下的蓝色发光荧光体组成：（1）MIIWO4荧光体，其中MII为 Mg，Ca，Zn和Cd中的至少一种，（2）CaWO 4荧光体，（3）BaSO 4 :Pb荧光体，（4）BaSO 4 :Eu 2+荧光体，（5）a（Ba，Sr）SO 4： ，（6）MeF2.pMe'X2.qKX'.rMe''SO4：mEu2 +，nTb3 +荧光体，其中Me是Mg，Ca，Sr和Ba中的至少一种，Me'和Me'中的每一个至少是 Ca，Sr和Ba中的一个，X和X'分别为Cl和Br中的至少一个，p，q，r，m和n为满足条件为0.80

公开(公告)号：US5477053A

公开(公告)日：1995-12-19

申请号：US254769

申请日：1994-06-06

申请人： Akio Umemoto ,  Yujiro Suzuki ,  Tutomu Watanabe ,  Michio Tanaka ,  Nobuaki Koike

发明人： Akio Umemoto ,  Yujiro Suzuki ,  Tutomu Watanabe ,  Michio Tanaka ,  Nobuaki Koike

IPC分类号： G21K4/00

CPC分类号： G21K4/00 ,  G21K2004/04 ,  G21K2004/06 ,  G21K2004/10

摘要： This invention relates to a radiographic intensifying screen excellent in sharpness and durability, which comprises a support, a fluorescent layer formed on the support, and a protective layer formed by coating a solution containing a protective layer-forming resin on the fluorescent layer, wherein a water repellent layer or a resin layer which may optionally contain a water repellent is provided between the fluorescent layer and the protective layer, or the fluorescent layer may optionally contain a water repellent, and also relates to a process for preparing the same.

摘要翻译： 本发明涉及清晰度和耐久性优异的射线照相增强屏幕，其包括支撑体，形成在支撑体上的荧光层，以及通过在荧光层上涂布含有保护层形成树脂的溶液而形成的保护层，其中， 防水层或可选地含有防水剂的树脂层设置在荧光层和保护层之间，或者荧光层可以任选地含有防水剂，并且还涉及其制备方法。

公开(公告)号：US4979200A

公开(公告)日：1990-12-18

申请号：US425045

申请日：1989-10-23

申请人： Akio Umemoto ,  Yuji Aoki ,  Katuyosi Numata ,  Hideo Suzuki

发明人： Akio Umemoto ,  Yuji Aoki ,  Katuyosi Numata ,  Hideo Suzuki

IPC分类号： G21K4/00

CPC分类号： G21K4/00

摘要： A radiographic intensifying screen which comprises a support, a fluorescent layer formed thereon comprising an X-ray luminescent phosphor and a binder resin supporting the X-ray luminescent phosphor in a dispersed state, and a protective layer formed on the fluorescent layer, wherein the proportion of the binder resin to the X-ray luminescent phosphor is within a range of from 4 to 8% by weight on the average of the entire fluorescent layer, and the binder resin is unevenly distributed in the fluorescent layer so that the proportion of the binder resin to the X-ray luminescent phosphor in the fluorescent layer in the vicinity of the protective layer is higher than the proportion of the binder resin to the X-ray excitable phosphor in the remainder of the fluorescent layer.

摘要翻译： 一种射线照相增强屏幕，包括支撑体，形成在其上的荧光层，其上形成有分散状态的X射线发光荧光体和支撑X射线荧光体的粘合剂树脂，以及形成在荧光层上的保护层， 的粘合剂树脂相对于荧光层整体的平均值在4〜8重量％的范围内，并且粘合剂树脂不均匀地分布在荧光层中，使得粘合剂树脂的比例 树脂与保护层附近的荧光层中的X射线发光荧光体的比例高于荧光层的其余部分中的粘合剂树脂与X射线可激发荧光体的比例。

公开(公告)号：US06232611B1

公开(公告)日：2001-05-15

申请号：US08581424

申请日：1995-12-29

申请人： Yujiro Suzuki ,  Yuji Aoki ,  Akio Umemoto ,  Masamichi Itabashi

发明人： Yujiro Suzuki ,  Yuji Aoki ,  Akio Umemoto ,  Masamichi Itabashi

IPC分类号： G21K400

CPC分类号： G21K4/00 ,  G21K2004/10

摘要： A radiographic intensifying screen having at least a fluorescent layer and a protective layer on a support, wherein the protective layer has a multi-layer structure comprising at least one layer of an organic macromolecule film and a film-forming resin layer provided on the surface of the organic macromolecule film at least on the side which is not in contact with the fluorescent layer, and the resin of the film-forming resin layer is different from the resin of the organic macromolecule film.

摘要翻译： 一种射线照相增强屏幕，其在支撑体上至少具有荧光层和保护层，其中所述保护层具有多层结构，所述多层结构包括至少一层有机高分子膜和设置在所述表面上的成膜树脂层 至少在与荧光层不接触的一侧上的有机高分子膜和成膜树脂层的树脂与有机高分子膜的树脂不同。