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58 条记录 (耗时 0.025 秒)

    Ceramic scintillator, method for producing same, and x-ray detector and x-ray CT imaging equipment using same
    6.
    发明授权
    Ceramic scintillator, method for producing same, and x-ray detector and x-ray CT imaging equipment using same 有权
    陶瓷闪烁体，其制造方法以及使用其的X射线检测器和X射线CT成像设备

    公开(公告)号：US06384417B1

    公开(公告)日：2002-05-07

    申请号：US09407760

    申请日：1999-09-29

    申请人： Miwa Okumura ,  Masaaki Tamatani ,  Naotoshi Matsuda ,  Takeshi Takahara ,  Yukihiro Fukuta

    发明人： Miwa Okumura ,  Masaaki Tamatani ,  Naotoshi Matsuda ,  Takeshi Takahara ,  Yukihiro Fukuta

    IPC分类号： G01T100

    CPC分类号： G01T1/20 ,  C04B35/50 ,  C04B35/5156 ,  C04B35/547 ,  C04B2235/3224 ,  C04B2235/446 ,  C04B2235/658 ,  C04B2235/663 ,  C04B2235/80 ,  C04B2235/963 ,  C04B2235/9653

    摘要： A sintered body of a rare earth oxysulfide is heat-treated at a temperature of 900° C. to 1200° C. in an atmosphere of a mixture of sulfur and oxygen to form island-like rare earth oxide phases on the surface of the sintered body to produce a ceramic scintillator. Therefore, the ceramic scintillator comprises a sintered body of a rare earth oxysulfide, and a rare earth oxide phase formed on the surface of the sintered body, wherein a rare earth oxysulfide phase or the rare earth oxide phase is dispersed on the surface of the sintered body, so that the optical output characteristic of the ceramic scintillator is improved. According to this ceramic scintillator, it is possible to remove the pressure and distortion during sintering, the coloring caused by the deviation from the stoichiometric composition, and the coloring caused during processing such as saw-cutting and polishing.

    摘要翻译： 在硫和氧混合物的气氛中，将氧化硫化稀土的烧结体在900℃〜1200℃的温度下进行热处理，在烧结体的表面形成岛状稀土氧化物相， 产生陶瓷闪烁体。 因此，陶瓷闪烁体包括在烧结体表面形成的稀土氧硫化物的烧结体和稀土氧化物相，其中稀土氧硫化物相或稀土氧化物相分散在烧结体的表面上 使得陶瓷闪烁体的光输出特性得到改善。 根据该陶瓷闪烁体，可以消除烧结期间的压力和变形，由化学计量组成的偏离引起的着色以及在切割和抛光等加工过程中引起的着色

    Cathode-ray tube including a white phosphor screen
    7.
    发明授权
    Cathode-ray tube including a white phosphor screen 失效
    阴极射线管包括白色荧光屏

    公开(公告)号：US4804882A

    公开(公告)日：1989-02-14

    申请号：US69444

    申请日：1987-07-02

    申请人： Takeshi Takahara ,  Mitsuhiro Oikawa ,  Yoshinori Tetsuishi ,  Kazuaki Higuchi ,  Masaaki Tamatani

    发明人： Takeshi Takahara ,  Mitsuhiro Oikawa ,  Yoshinori Tetsuishi ,  Kazuaki Higuchi ,  Masaaki Tamatani

    IPC分类号： C09K11/08 ,  C09K11/58 ,  C09K11/77 ,  H01J29/18 ,  H01J29/20 ,  C09K11/477

    CPC分类号： C09K11/584 ,  C09K11/7771 ,  C09K11/778 ,  H01J29/187

    摘要： A cathode-ray tube according to the present invention is provided with a phosphor screen comprising phosphors A, B, and C, wherein each of the phosphors A and B constitute 5 to 15% by weight and, the phosphor C constitutes 70 to 90% by weight. The phosphor A is a bluish white-emitting phosphor (Y.sub.1-x-y Gd.sub.x Tb.sub.y).sub.2 O.sub.2 S (0.ltoreq.X.ltoreq.0.999999 and 0.000001.ltoreq.Y.ltoreq.0.001), the phosphor B is at least one of a blue-emitting silver-activated hexagonal zinc sulfate (ZnS:Ag) phosphor, etc., and the phosphors C is a yellow-emitting phosphor (In.sub.1-p-r M.sub.p TB.sub.q Eu.sub.r BO.sub.3) (wherein M is at least one element selected from the group consisting of Sc, Lu, Y, Gd, and Ga, and p, q, and r satisfy 0.ltoreq.p.ltoreq.0.2, 0.0005.ltoreq.q.ltoreq.0.05, and 0.001.ltoreq.r.ltoreq.0.1). The cathode-ray tube of the present invention is a phosphor screen which is free from toxicity and has good flickering and brightness characteristics and high current dependence of brightness.

    摘要翻译： 根据本发明的阴极射线管设置有包含荧光体A，B和C的荧光屏，其中每个荧光体A和B构成5至15重量％，并且荧光体C构成70至90重量％ 重量。 荧光体A是蓝色白色发光荧光体（Y1-x-yGdxTby）2O2S（0 <= 0.999999和0.000001

    Fluorescent substance and light-emitting device using the same
    10.
    发明授权
    Fluorescent substance and light-emitting device using the same 有权
    荧光物质和使用其的发光装置

    公开(公告)号：US07572391B2

    公开(公告)日：2009-08-11

    申请号：US12142078

    申请日：2008-06-19

    申请人： Naomi Shida ,  Masaaki Tamatani ,  Yoshihito Tsutsui ,  Kazuaki Ootsuka ,  Ryosuke Hiramatsu

    发明人： Naomi Shida ,  Masaaki Tamatani ,  Yoshihito Tsutsui ,  Kazuaki Ootsuka ,  Ryosuke Hiramatsu

    IPC分类号： C09K11/59 ,  C09K11/55

    CPC分类号： H05B33/14 ,  C09K11/7734 ,  C09K11/7792 ,  H01L33/502 ,  H01L2224/48091 ,  H01L2224/48247 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2995 ,  Y10T428/2996 ,  Y10T428/2998 ,  H01L2924/00014

    摘要： An field effect transistor includes a first semiconductor region, a gate electrode insulatively disposed over the first semiconductor region, source and drain electrodes between which the first semiconductor region is sandwiched, and second semiconductor regions each formed between the first semiconductor region and one of the source and drain electrodes, and having impurity concentration higher than that of the first semiconductor region, the source electrode being offset to the gate electrode in a direction in which the source electrode and the drain electrode are separated from each other with respect to a channel direction, and one of the second semiconductor regions having a thickness not more than a thickness with which the one of second semiconductor regions is completely depleted in the channel direction being in thermal equilibrium with the source electrode therewith.

    摘要翻译： 提供一种制造荧光物质的方法，其包括将Eu原料，Si原料，至少一种碱土金属的原料粉末和选自La， Gd，Cs和K，得到原料混合物; 预焙烧混合物以获得烘焙材料; 混合焙烧的材料并在由N 2 / H 2的混合气体组成的还原气氛中进行焙烧以获得第一烧制产品; 粉碎第一烧制产品以获得粉碎的第一烧制产品;在粉碎的第一烧制产物在N2 / H2的还原气氛中焙烧，得到由碱土金属硅酸盐组成的荧光物质; 粉碎荧光物质以获得荧光颗粒; 筛分荧光颗粒; 并在荧光颗粒的表面上提供表面覆盖材料。