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1. 发明授权

US5515411A X-ray image pickup tube 失效
标题翻译： X射线摄像管
公开(公告)号：US5515411A
公开(公告)日：1996-05-07
申请号：US215950
申请日：1994-03-22
申请人： Hiromichi Tonami , Takahisa Nishikawa , Takayuki Takemoto , Yutaro Kimura , Keiichi Hiragaki , Hidetoshi Kishimoto , Tatsuya Shimizu , Shiro Oikawa , Tutomu Katou , Shirou Suzuki , Toshio Yamagishi , Kenkichi Tanioka
发明人： Hiromichi Tonami , Takahisa Nishikawa , Takayuki Takemoto , Yutaro Kimura , Keiichi Hiragaki , Hidetoshi Kishimoto , Tatsuya Shimizu , Shiro Oikawa , Tutomu Katou , Shirou Suzuki , Toshio Yamagishi , Kenkichi Tanioka
IPC分类号： G21K4/00 , H01J31/49 , H01J40/14
CPC分类号： H01J31/49 , G21K4/00 , G21K2004/04 , G21K2004/06
摘要： An X-ray image pickup tube converts a transmitted X-ray image into electric signals. The pickup tube includes a target structure having a fluorescent element, and a translucent conductive film for receiving a high voltage, with a photoconductive film laminated thereupon. The fluorescent element receives transmitted X rays in a two-dimensional distribution, and converts them into visible rays in a two-dimensional distribution. The translucnet conductive film is optically coupled to a surface of the fluorescent element opposite from an X-ray incident surface thereof. The photoconductive film includes an amorphors semiconductor layer which converts the visible rays transmitted in a two-dimensional distribution through the translucent conductive film, into electric charges in a two-dimensional distribution, and which multiplies the electric charges in the two-dimensional distribution based on electric fields formed by the high voltage applied to the translucent conductive film. The pickup tube also has a signal reading device in the form of an electron gun or switching elements for scanning a surface of the photoconductive film, as electric signals, a two-dimensional electric potential distribution occurring on the photoconductive film.
摘要翻译： X射线摄像管将透射的X射线图像转换为电信号。拾取管包括具有荧光元件的目标结构和用于接收高电压的半透明导电膜，其上层叠有光电导膜。荧光元件以二维分布接收透射的X射线，并将其转换成二维分布中的可见光。透明导电膜光学耦合到与其X射线入射表面相对的荧光元件的表面。光电导膜包括将通过半透明导电膜以二维分布透射的可见光转换为二维分布的电荷的非晶半导体层，并且将二维分布中的电荷乘以由施加到半透明导电膜的高电压形成的电场。拾取管还具有电子枪形式的信号读取装置或用于扫描光电导膜的表面作为电信号的光电导膜上出现的二维电位分布的开关元件。

2. 发明授权

US5483071A Two-dimensional radiation detector 失效
标题翻译：二维辐射探测器
公开(公告)号：US5483071A
公开(公告)日：1996-01-09
申请号：US266606
申请日：1994-06-28
申请人： Shiro Oikawa , Takayuki Takemoto , Tutomu Katou , Shirou Suzuki , Kenkichi Tanioka
发明人： Shiro Oikawa , Takayuki Takemoto , Tutomu Katou , Shirou Suzuki , Kenkichi Tanioka
IPC分类号： A61B6/00 , G01T1/20 , H01L27/146 , H01L31/0264 , G01T1/202 , G01T1/24
CPC分类号： G01T1/2018 , H01L27/146 , H01L27/14676
摘要： A two-dimensional radiation detector for obtaining a radiographic image as converted into electric signals. The detector has a multi-layer structure including a scintilator, a translucent electrode film, a photoconductive film and a scan switch layer. The scan switch layer includes conductors arranged in matrix form and in contact with the photoconductive film, a plurality of FETs corresponding to the conductors arranged in matrix form, and a uniformly planar conductor for successively applying a bias voltage through the FETs to the matrix conductors row by row. Each FET has a drain electrode connected to one of the matrix conductors, a source electrode connected to the uniformly planar conductor, and a gate electrode connected to the drive circuit. The translucent electrode film includes column conductors corresponding to columns of the matrix conductors, each of the column conductors being connected to a signal reading line.
摘要翻译：一种二维辐射检测器，用于获得转换为电信号的放射照相图像。检测器具有包括闪烁体，透光性电极膜，感光膜和扫描开关层的多层结构。扫描开关层包括以矩阵形式布置并与光电导膜接触的导体，对应于以矩阵形式布置的导体的多个FET，以及均匀平面的导体，用于连续地通过FET施加偏置电压到矩阵导体列按行。每个FET具有连接到矩阵导体之一的漏极电极，连接到均匀平面导体的源电极和连接到驱动电路的栅电极。半透明电极膜包括与矩阵导体的列对应的列导体，每个列导体连接到信号读取线。

3. 发明授权

US06399950B1 Two-dimensional radiation detector 有权
标题翻译：二维辐射探测器
公开(公告)号：US06399950B1
公开(公告)日：2002-06-04
申请号：US09721637
申请日：2000-11-27
申请人： Yutaro Kimura , Takayuki Takemoto
发明人： Yutaro Kimura , Takayuki Takemoto
IPC分类号： G01T124
CPC分类号： G01T1/2928 , G01T1/24 , G01T1/241
摘要： In a two-dimensional radiation detector of the invention, a semiconductor layer for converting a radiological image or light image converted therefrom to a picture image of charges by sensing X-ray, and a switching element matrix are integrally formed. A bias electrode common to a signal electrode of the semiconductor layer is connected to a bias power source through a switch or a resistance. An electric current flowing through the bias electrode from the bias power source is detected by a detector, and supplied to a control circuit. The control circuit compares a detected value supplied from the detector with a threshold value, and turns off the switch when the detected current value reaches the threshold value to shut off application of the bias voltage to the bias electrode.
摘要翻译：在本发明的二维辐射检测器中，通过感测X射线将放射线图像或从其转换成的电荷的图像转换成电荷的图像的图像和开关元件矩阵一体地形成。半导体层的信号电极共用的偏置电极通过开关或电阻连接到偏置电源。从偏置电源流过偏置电极的电流由检测器检测，并提供给控制电路。控制电路将从检测器提供的检测值与阈值进行比较，并且当检测到的电流值达到阈值时关闭开关，以切断向偏置电极施加偏置电压。

4. 发明授权

US06243440B1 Radiographic apparatus 失效
标题翻译：射线照相设备
公开(公告)号：US06243440B1
公开(公告)日：2001-06-05
申请号：US09299075
申请日：1999-04-26
申请人： Shiro Oikawa , Susumu Adachi , Takayuki Takemoto , Yasukuni Yamane
发明人： Shiro Oikawa , Susumu Adachi , Takayuki Takemoto , Yasukuni Yamane
IPC分类号： H05G164
CPC分类号： A61B6/032
摘要： An apparatus using a two-dimensional radiation sensor for acquiring X-ray penetration images or the like. A monitoring radiography is performed with a small dose before a production radiography. A radiographic condition for the production radiography, specifically a radiation emitting period or a tube current of a radiation generator, is computed based on a ratio between a quantity of charges in a region of interest collected from the two-dimensional radiation sensor in time of the monitoring radiography and a desired quantity of charges in the region of interest in time of the production radiography. The production radiography is carried out based on a result of the computation to acquire a high quality image.
摘要翻译：使用二维辐射传感器获取X射线穿透图像等的装置。在生产射线照相之前，以小剂量进行监测放射照相。基于从二维辐射传感器收集的感兴趣区域中的电荷量之间的比率来计算用于生产放射线照相术的射线照相条件，特别是辐射发射周期或辐射发生器的管电流，监测放射成像以及在生产射线照相时期感兴趣的区域中的期望数量的电荷。基于计算的结果进行生产射线照相以获得高质量的图像。

5. 发明授权

US06911996B1 Fluoroscopy image apparatus 失效
标题翻译：荧光透视图像设备
公开(公告)号：US06911996B1
公开(公告)日：2005-06-28
申请号：US09721638
申请日：2000-11-27
申请人： Takayuki Takemoto
发明人： Takayuki Takemoto
IPC分类号： H04N7/18 , A61B6/00 , H04N5/321 , H04N9/47 , H05G1/60 , H05G1/64
CPC分类号： H04N5/321
摘要： In a fluoroscopy image apparatus of the invention, in case an ordinary control circuit for an image sensor is out of order, a D/A switching mechanism is switched to analog, and a plurality of pixels of the image sensor is controlled as one pixel unit by a pixel control circuit. By TV standard scanning system signals generated in a TV reference signal circuit, the image sensor is scanned through the gate driver circuit. In a picture signal superimpose circuit, X-ray image signals from a readout amplifier are superimposed on a TV frame synchronization signal of the TV standard scanning system, and outputted as analog video signals. The analog video signals are transmitted to an external monitor to be displayed.
摘要翻译：在本发明的透视图像装置中，在图像传感器的普通控制电路出现故障的情况下，将D / A切换机构切换为模拟，将图像传感器的多个像素控制为一个像素单位通过像素控制电路。通过TV电视参考信号电路中产生的TV标准扫描系统信号，通过栅极驱动电路扫描图像传感器。在图像信号叠加电路中，来自读出放大器的X射线图像信号叠加在TV标准扫描系统的TV帧同步信号上，作为模拟视频信号输出。模拟视频信号被传送到外部监视器进行显示。

6. 发明授权

US06630676B2 X-ray image taking apparatus with plane type radiation detector unit 失效
标题翻译：具有平面型辐射检测器单元的X射线摄像装置
公开(公告)号：US06630676B2
公开(公告)日：2003-10-07
申请号：US09871670
申请日：2001-06-04
申请人： Takayuki Takemoto
发明人： Takayuki Takemoto
IPC分类号： A61B600
CPC分类号： G01T1/24 , A61B6/548
摘要： In a plane type radiation detector unit, a rotating shaft is provided on one end side of the detector unit and is attached to a fluoroscopic radiographing stand to hold the detector unit so that the detector unit can be rotated around the rotating shaft by 90° to widen a space in front of an object or patient to be tested. A plurality of slide electrodes is disposed on the rotating shaft to input or output signals to or from the detector unit, or to supply a power source. A detecting portion of the detector unit includes an X-ray converting layer, an active matrix board, a gate circuit portion and a reading circuit portion. The detecting portion is controlled by a control circuit portion to read pixel signals of the detecting portion to the reading circuit portion and send out data to an outside through the slide electrodes. Also, by providing a communication circuit portion for sending or receiving radio signals from the outside, data can be sent to the outside by radio signals through a non-contact I/O device. Thus, the plane type radiation detector unit can be miniaturized and made light in weight without using a connector and a cable, and moreover, a space in front of the object can be widened.
摘要翻译：在平面型放射线检测器单元中，旋转轴设置在检测器单元的一端侧，并附接到荧光透视放映架以保持检测器单元，使得检测器单元可围绕旋转轴旋转90°至加宽待测物体或患者前方的空间。多个滑动电极设置在旋转轴上以向检测器单元输入或输出信号，或者提供电源。检测器单元的检测部分包括X射线转换层，有源矩阵板，门电路部分和读取电路部分。检测部分由控制电路部分控制，以将检测部分的像素信号读取到读取电路部分，并通过滑动电极向外部发送数据。此外，通过提供用于从外部发送或接收无线电信号的通信电路部分，可以通过非接触式I / O设备通过无线电信号将数据发送到外部。因此，平面型放射线检测器单元可以小型化并且重量轻，而不使用连接器和电缆，此外，可以扩大物体前方的空间。

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