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    • 53. 发明授权
    • Semiconductor element and manufacturing method for the same
    • 半导体元件及其制造方法相同
    • US07183586B2
    • 2007-02-27
    • US10989657
    • 2004-11-17
    • Takashi IchiharaDaisuke SangaTakeshi KususeTakao Yamada
    • Takashi IchiharaDaisuke SangaTakeshi KususeTakao Yamada
    • H01L29/22
    • H01L33/32H01L33/22H01L33/38H01L33/405H01L33/42H01L33/46H01L2224/48463H01L2933/0091
    • A nitride semiconductor light emitting element is provided with: a substrate 11 having a pair of main surfaces that face each other; a nitride semiconductor layer of a first conductivity type layered on one of the main surfaces of substrate 11; a nitride semiconductor layer of a second conductivity type layered on the nitride semiconductor layer of the first conductivity type; an active layer 14 formed between the nitride semiconductor layer of the first conductivity type and the nitride semiconductor layer of the second conductivity type; and a reflective layer 16 formed on the nitride semiconductor layer of the second conductivity type for reflecting light from active layer 14 toward the nitride semiconductor layer of the second conductivity type. This nitride semiconductor light emitting element can be mounted on a circuit board, with the other main surface of the above described substrate 11 being used as the main light emitting surface. Furthermore, a translucent conductive layer 17 is formed between reflective layer 16 and the nitride semiconductor layer of the second conductivity type, and an uneven interface 22 is formed as the interface between translucent conductive layer 17 and reflective layer 16.
    • 氮化物半导体发光元件设置有:具有彼此相对的一对主表面的基板11; 在衬底11的一个主表面上分层的第一导电类型的氮化物半导体层; 层叠在第一导电类型的氮化物半导体层上的第二导电类型的氮化物半导体层; 形成在第一导电类型的氮化物半导体层和第二导电类型的氮化物半导体层之间的有源层14; 以及形成在第二导电类型的氮化物半导体层上的反射层16,用于将来自有源层14的光朝向第二导电类型的氮化物半导体层反射。 该氮化物半导体发光元件可以安装在电路板上,上述基板11的另一个主表面用作主发光表面。 此外,在反射层16和第二导电类型的氮化物半导体层之间形成半透明导电层17,并且形成不平坦界面22作为透光性导电层17和反射层16之间的界面。
    • 59. 发明授权
    • Method and apparatus for reconstructing SPECT image by utilizing two
separate reconstruction filter functions
    • 通过利用两个独立的重建滤波器函数来重建SPECT图像的方法和装置
    • US5434416A
    • 1995-07-18
    • US217102
    • 1994-03-24
    • Nobutoku MotomuraTakashi Ichihara
    • Nobutoku MotomuraTakashi Ichihara
    • G06T11/00A61B6/00G01T1/166G06F19/00
    • G06T11/005A61B6/037G06T2211/421
    • A method and an apparatus for reconstructing SPECT image capable of improving the SPECT image resolution. The apparatus includes: a detector, including a fan-beam collimator, for detecting gamma (.gamma.) rays emitted from a radio isotope injected into a biological body; a rotation unit for effecting relative rotation between the biological body and the detector about a center of rotation to thereby acquire projection data from a different direction; a first reconstructing unit for convoluting the projection data obtained from the detector, by a first convolution function, and for back-projecting the convoluted projection data to a specific region which lies in a sufficiently close vicinity of the detector; a second reconstructing unit for convoluting the projection data by a second convolution function, and for back-projecting the secondly convoluted projection data to another specific region; and display means for displaying thereon a distribution image reconstructed by the first and second reconstructing units.
    • 一种用于重建能够改善SPECT图像分辨率的SPECT图像的方法和装置。 该装置包括:检测器,包括扇形光束准直器,用于检测从注入生物体的放射性同位素发射的伽马射线; 旋转单元,用于围绕旋转中心实现生物体和检测器之间的相对旋转,从而从不同方向获取投影数据; 第一重建单元,用于通过第一卷积函数卷积从所述检测器获得的投影数据,以及将所述卷积投影数据反投影到位于所述检测器的所述特定区域的特定区域; 第二重建单元,用于通过第二卷积函数卷积投影数据,以及用于将第二卷积投影数据反投影到另一特定区域; 以及显示装置,用于在其上显示由第一和第二重建单元重建的分布图像。
    • 60. 发明授权
    • Ring type single-photon emission CT imaging apparatus
    • 环形单光子发射CT成像装置
    • US4639599A
    • 1987-01-27
    • US732078
    • 1985-05-09
    • Takashi Ichihara
    • Takashi Ichihara
    • G01T1/29G01T1/164
    • G01T1/2985A61B6/037
    • In a single-photon emission computerized tomography imaging apparatus, an inner ring member and an outer ring member are concentrically arranged with respect to an object under examination to which radioisotope has been administered. A plurality of detector elements such as the germanium semiconductor are mounted on the inner ring member. A plurality of detector elements such as the sodium iodide scintillator and the photomultiplier are mounted on the second ring member. First and second analyzers having a plurality of single channel analyzers are connected to receive first and second detector signals from the inner and outer detector elements. The first and second analyzers analyze data on the positional information of the inner and outer detector elements and data on the energy information of the gamma ray photon incident upon the inner and outer detector elements. Based upon two sets of data, an image reconstruction unit reconstructs a tomographic image of the object under examination.
    • 在单光子发射计算机断层摄影成像设备中,内环构件和外环构件相对于已经被施用放射性同位素的检查对象同心地布置。 诸如锗半导体的多个检测器元件安装在内环构件上。 多个检测元件如碘化钠闪烁体和光电倍增管安装在第二环件上。 具有多个单通道分析器的第一和第二分析器被连接以从内部和外部检测器元件接收第一和第二检测器信号。 第一和第二分析器分析关于内部和外部检测器元件的位置信息的数据以及入射到内部和外部检测器元件上的伽马射线光子的能量信息的数据。 基于两组数据,图像重建单元重建检查对象的断层图像。