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21. 发明授权

US4945552A Imaging system for obtaining X-ray energy subtraction images 失效
标题翻译：用于获得X射线能量减影图像的成像系统
公开(公告)号：US4945552A
公开(公告)日：1990-07-31
申请号：US277987
申请日：1988-11-30
申请人： Ken Ueda , Keiji Umetani , Yoshio Suzuki
发明人： Ken Ueda , Keiji Umetani , Yoshio Suzuki
IPC分类号： G01T1/36
CPC分类号： G01T1/36
摘要： An energy subtraction image measuring system for selectively depicting any target element using X-rays includes an X-ray filter containing the target element. It measures an X-ray image by using a quasi-monoenergetic X-ray beam obtained without using the filter and having a photon energy range that extends above and below the absorption edge of the target element, as well as an X-ray image using an X-ray beam containing only the photon energy component having photon energy levels lower than the absorption edge which is obtained by using the filter. The energy subtraction image measuring system then generates an energy substraction image by the operation of the thus obtained data.
摘要翻译：用于使用X射线选择性地描绘任何目标元件的能量减影图像测量系统包括包含目标元件的X射线滤光器。它通过使用获得的准单能X射线束来测量X射线图像，而不使用滤光器并具有在目标元件的吸收边缘上方和下方延伸的光子能量范围，以及使用仅含有光子能量级别低于通过使用滤波器获得的吸收边缘的光子能量的X射线束。能量减影图像测量系统然后通过这样获得的数据的操作产生能量减影图像。

22. 发明授权

US5528655A Method and apparatus for producing radiologic three-dimensional image 失效
标题翻译：用于制作放射三维图像的方法和装置
公开(公告)号：US5528655A
公开(公告)日：1996-06-18
申请号：US200518
申请日：1994-02-23
申请人： Keiji Umetani , Ken Ueda , Hisatake Yokouchi
发明人： Keiji Umetani , Ken Ueda , Hisatake Yokouchi
IPC分类号： A61B6/00 , A61B6/02 , G21K1/02 , H04N5/32 , H05G1/60 , H05G1/64
CPC分类号： G21K1/025 , H04N5/32 , H05G1/60
摘要： A radiologic three-dimensional imaging apparatus comprises a device for generating an X-ray, a two-dimensional X-ray image detector including an avalanche multiplication image pickup tube for detecting an image of an object with the X-ray transmitted therethrough, a device for producing an average intensity distribution from a plurality of intensity distributions of the X-ray transmitted image, and a device for setting the target voltage applied to the photoconductive layer of the avalanche multiplication image pickup tube for each electron beam scanning position in such a manner the target voltage is high at the central portion of the visual field of the object and low at the peripheral portion thereof.
摘要翻译：一种放射性三维成像装置，包括用于产生X射线的装置，二维X射线图像检测器，其包括雪崩倍增图像拾取管，用于检测通过其透射的X射线的物体的图像;装置用于从X射线透射图像的多个强度分布产生平均强度分布;以及用于以这种方式设置施加到雪崩倍增图像拾取管的光电导层的目标电压的装置目标电压在物体的视野的中心部分是高的，而在其周边部分的低电平。

23. 发明授权

US5059794A Radiation imaging sensor 失效
标题翻译：辐射成像传感器
公开(公告)号：US5059794A
公开(公告)日：1991-10-22
申请号：US517382
申请日：1990-05-01
申请人： Tetsuhiko Takahashi , Kenichi Okajima , Ken Ueda
发明人： Tetsuhiko Takahashi , Kenichi Okajima , Ken Ueda
IPC分类号： G01T1/20 , G01T1/26 , H01L31/0224 , H01L31/0232 , H01L31/08 , H01L31/16
CPC分类号： G01T1/2018 , G01T1/26 , H01L31/022466 , H01L31/02322 , H01L31/085 , H01L31/161
摘要： A radiation imaging sensor including laminate structure of a phosphorescent layer, a light-transmissive electrode, a photoconductor layer, an insulating layer and an electrode, an applied voltage to the photoconductor layer through the light-transmissive electrode and the electrode is increased sufficiently so that light emitted from the phosphorescent member causes avalanche multiplicaton of the electrons and/or positive holes generated in the photoconductor layer by field sweep inside the photoconductor layer.
摘要翻译：包括磷光层，透光电极，感光体层，绝缘层和电极的层叠结构的放射线摄像传感器，通过透光电极和电极向感光体层施加的电压充分增加，使得从磷光部件发出的光通过在感光体层内的场扫描引起在感光体层中产生的电子和/或空穴的雪崩乘法。

24. 发明授权

US06418186B1 X-ray image pickup device 失效
标题翻译： X射线摄像装置
公开(公告)号：US06418186B1
公开(公告)日：2002-07-09
申请号：US09601219
申请日：2000-07-28
申请人： Hiroyuki Kawai , Ken Ueda
发明人： Hiroyuki Kawai , Ken Ueda
IPC分类号： A61B603
CPC分类号： A61B6/032 , A61B6/027 , A61B6/583 , Y10S378/901
摘要： In an X-ray imaging apparatus in which X-ray beams are irradiated on a subject (4) and a tomogram of the subject is reconstructed from helically scanned X-ray images and displayed, reconstructing means (101) includes selecting means (105) for selecting, from X-ray images measured from the 360° periphery of the subject at a cross-sectional position specified by an inspector, X-ray images measured within a range of −360° to +360° distant from a rotation angle of an imaging system at the cross-sectional position, filter operation means (102) for applying a filtering process to the selected X-ray images, interpolation operation means (103) for interpolating projection values of X-ray images in respect of individual pixels at the cross-sectional position from distances in the moving direction of moving means (5, 6) between positions of images selected by an operation unit and the cross-sectional position specified by the inspector and the X-ray images, and inverse projection operation means (104) for reconstructing a tomogram at the cross-sectional position from an interpolated image, and the obtained tomogram is displayed on display means (9).
摘要翻译：在将X射线束照射在被检体（4）上并从螺旋扫描的X射线图像重构对象的断层图像并进行显示的X射线摄像装置中，重建装置（101）包括选择装置（105）用于从在检查员指定的横截面位置处从受检者的360°周边测量的X射线图像中选择在远离旋转角度的-360°至+ 360°的范围内测量的X射线图像在截面位置处的成像系统，用于对所选择的X射线图像应用滤波处理的滤波器操作装置（102）;插值操作装置（103），用于内插关于各个像素的X射线图像的投影值在由操作单元选择的图像的位置与由检查者指定的横截面位置和X射线图像之间的移动装置（5,6）的移动方向上的距离的横截面位置以及反投影操作我（104），用于在内插图像的横截面位置处重构断层图像，并且所获得的断层图像显示在显示装置（9）上。

25. 发明授权

US5880470A Two-dimensional radiation image detector 失效
标题翻译：二维辐射图像检测器
公开(公告)号：US5880470A
公开(公告)日：1999-03-09
申请号：US643746
申请日：1996-05-06
申请人： Keiji Umetani , Ken Ueda , Tetsurou Minemura , Kazutaka Tsuji , Koichi Koike
发明人： Keiji Umetani , Ken Ueda , Tetsurou Minemura , Kazutaka Tsuji , Koichi Koike
IPC分类号： G01T1/20 , G01T1/24 , G03B42/02 , H01L27/146 , H04N5/32 , G21K4/00
CPC分类号： G01T1/2018
摘要： A 2-dimensional radiation image detector wherein a plurality of conversion elements for converting a radiation into visible light and a plurality of photo-sensitive elements for detecting the visible light and accumulating signals are formed an elements board includes two elements boards arranged in an overlapping relationship with each other and each having the plurality of photo-sensitive elements arranged two-dimensionally thereon such that the distance between centers of the photo-sensitive elements in one direction of the arrangement is substantially equal to a width of the photo-sensitive elements while the distance between the centers of the photo-sensitive elements in a direction perpendicular to the one direction is substantially equal to twice the width of the photo-sensitive elements and such that that portion of a radiation directed upon the two overlapping elements boards which has passed through a first one of the elements boards other than locations of the photo-sensitive elements is detected by the photo-sensitive elements of the second elements board.
摘要翻译：一种二维放射线图像检测器，其中用于将辐射转换成可见光的多个转换元件和用于检测可见光和累积信号的多个光敏元件形成为元件板，包括以重叠关系布置的两个元件板彼此之间并且每个具有多个光敏元件，其二维地布置在其上，使得光敏元件的中心之间在该布置的一个方向上的距离基本上等于光敏元件的宽度，而光敏元件在与一个方向垂直的方向上的中心之间的距离基本上等于光敏元件宽度的两倍，并且使得照射到已经通过的两个重叠元件板的辐射部分除了照片敏感度位置之外的第一个要素板 e元件由第二元件板的光敏元件检测。

26. 发明授权

US5402463A Apparatus and method for radiation imaging 失效
标题翻译：辐射成像装置和方法
公开(公告)号：US5402463A
公开(公告)日：1995-03-28
申请号：US109075
申请日：1993-08-19
申请人： Keiji Umetani , Ken Ueda , Yoichi Onodera , Hisatake Yokouchi
发明人： Keiji Umetani , Ken Ueda , Yoichi Onodera , Hisatake Yokouchi
IPC分类号： A61B6/00 , H04N5/32 , H04N7/18 , H05G1/60
CPC分类号： H04N7/18 , H04N5/32 , H05G1/60
摘要： An X-ray imaging apparatus is constructed with a combination of an X-ray image intensifier, a relay optical system, and a video camera with avalanche multiplication camera tube. The video camera is controlled by an image acquisition circuit, a synchronizing signal generation circuit, and an applying voltage control circuit. The applying voltage control circuit for controlling the voltage to be applied to the video camera with avalanche multiplication camera tube controls the applying voltage on the basis of image data in an image memory so that the gray scale level of a detected visible image is corrected.
摘要翻译： X射线成像装置由X射线图像增强器，中继光学系统和具有雪崩倍增照相机管的摄像机的组合构成。摄像机由图像采集电路，同步信号发生电路和施加电压控制电路控制。用于控制施加到具有雪崩倍增照相机的摄像机的电压的施加电压控制电路基于图像存储器中的图像数据来控制施加电压，从而校正检测到的可见图像的灰度级。

27. 发明授权

US4890310A Spectral type radiation imaging system 失效
标题翻译：光谱辐射成像系统
公开(公告)号：US4890310A
公开(公告)日：1989-12-26
申请号：US106345
申请日：1987-10-09
申请人： Keiji Umetani , Ken Ueda , Ryuichi Suzuki , Hisatake Yokouchi
发明人： Keiji Umetani , Ken Ueda , Ryuichi Suzuki , Hisatake Yokouchi
IPC分类号： A61B6/00 , A61B6/03 , G01T1/36 , G03B42/02 , H05G1/60
CPC分类号： A61B6/482 , A61B6/032 , A61B6/4092 , G01T1/36 , H05G1/60
摘要： An x-ray having the energy bandwidth which extends between above and below the absorption edge energy of an element constituting a contrast agent is emitted from an x-ray source as an x-ray to be projected to an object, the x-ray at the higher energy component than the absorption energy of the contrast-agent constituting element is detected by one x-ray detector, the x-ray, having been transmitted through the one x-ray detector, at the lower energy component than the absorption edge energy of the contrast agent constituting element is detected by another x-ray detector, and a subtraction image is obtained by processing the image data from both detectors.
摘要翻译：从构成造影剂的元件的吸收边缘能量的上方和下方延伸的能量带宽的x射线作为x射线从X射线源发射以投影到物体，X射线在通过一个X射线检测器来检测比造影剂构成元件的吸收能量更高的能量分量，x射线已经通过一个x射线检测器以比吸收边缘能量更低的能量分量由另一X射线检测器检测造影剂构成元件，并且通过从两个检测器处理图像数据来获得减影图像。

28. 发明授权

US4575868A Positron computed tomograph device 失效
标题翻译：正电子计算机断层摄影装置
公开(公告)号：US4575868A
公开(公告)日：1986-03-11
申请号：US530545
申请日：1983-09-09
申请人： Ken Ueda , Kenichi Okajima , Katsumi Takami
发明人： Ken Ueda , Kenichi Okajima , Katsumi Takami
IPC分类号： G01T1/161 , G01T1/172 , G01T1/29 , G01T1/20
CPC分类号： G01T1/2985 , A61B6/037 , Y10S378/901
摘要： A positron-computed tomograph device is enabled to suppress the noise component of data for attenuation correction by continuing measurement of the relative angle between a gamma ray source for attenuation correction and detector pair out of a plurality of detectors thereby determining whether or not, at a given moment, the gamma ray source is present within the zone of measurement allocated for a specific detector pair which has detected coincidence and, when the determination ascertains that the source is not present in the aforementioned zone of measurement, avoiding measurement of coincidence or preventing data on coincidence from being stored in a memory.
摘要翻译：正电子计算机断层摄影装置能够通过继续测量用于衰减校正的伽马射线源和多个检测器中的检测器对之间的相对角度来抑制用于衰减校正的数据的噪声分量，从而确定在一个在给定的时刻，伽马射线源存在于为检测到一致的特定检测器对分配的测量区域内，并且当确定确定源不存在于上述测量区域中时，避免测量一致或阻止数据巧合从存储在内存中。

29. 发明授权

US4212676A Compositions for solid writing materials and writing implements 失效
标题翻译：实体写作材料和书写工具的组合
公开(公告)号：US4212676A
公开(公告)日：1980-07-15
申请号：US11935
申请日：1979-02-13
申请人： Ken Ueda
发明人： Ken Ueda
IPC分类号： C09D13/00
CPC分类号： C09D13/00
摘要： This invention relates to solid writing materials capable of giving writings, drawings or markings which are readily erasable with a dry eraser such as a blackboard eraser, dry fabric, etc.This invention provides compositions for such solid writing materials comprising (i) an emulsifiable polyethylene wax, (ii) a liquid organic compound substantially incompatible with the component (i) and having a specified boiling point and viscosity, (iii) an organic solvent capable of dissolving or uniformly dispersing the components (i) and (ii) and having a specified boiling point and (iv) a pigment.
摘要翻译：本发明涉及能够提供可用干橡皮擦（如黑板橡皮擦，干布等）易于擦除的书写，图纸或标记的实心书写材料。本发明提供了这种固体书写材料的组合物，其包含（i）可乳化聚乙烯蜡，（ii）与组分（i）基本上不相容并具有特定沸点和粘度的液体有机化合物，（iii）能够溶解或均匀分散组分（i）和（ii）的有机溶剂，并具有规定的沸点和（iv）颜料。

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