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41. 发明授权

US07161748B2 Zoom lens barrel and optical equipment 有权
标题翻译：变焦镜筒和光学设备
公开(公告)号：US07161748B2
公开(公告)日：2007-01-09
申请号：US10938338
申请日：2004-09-09
申请人： Akihiko Nishide
发明人： Akihiko Nishide
IPC分类号： G02B7/02 , G02B15/14
CPC分类号： G02B7/10
摘要： For the purpose of miniaturizing a zoom lens barrel, a zoom lens of the present invention comprises one lens group which moves at the time of variable power, one diaphragm member which moves at the time of variable power, and a cam member which has a cam section for a lens group, which guides the movement of the above-mentioned lens group at the time of variable power, and a cam section for a diaphragms which guides the movement of the above-mentioned diaphragm member at the time of variable power, wherein the above-mentioned cam section for a lens group and the above-mentioned cam section for a diaphragm are coupled.
摘要翻译：为了使变焦镜头筒小型化，本发明的变焦镜头包括一个在可变功率时移动的透镜组，一个在可变功率时移动的光阑部件，以及一个具有凸轮的凸轮部件用于在可变功率时引导上述透镜组的移动的透镜组的截面，以及用于在可变功率时引导上述隔膜构件的移动的隔膜的凸轮部，其中用于透镜组的上述凸轮部分和用于隔膜的上述凸轮部分联接。

42. 发明授权

US07099503B2 Image reconstruction method and X-ray CT apparatus 失效
标题翻译：图像重建方法和X射线CT装置
公开(公告)号：US07099503B2
公开(公告)日：2006-08-29
申请号：US10244287
申请日：2002-09-16
申请人： Akihiko Nishide
发明人： Akihiko Nishide
IPC分类号： G06K9/00
CPC分类号： G06T11/006 , A61B6/5258
摘要： For the purpose of reducing artifacts caused by a scan plane tilted with respect to a rotation plane when a multi-row detector is employed, a j-th detector row which an X-ray passing through a pixel point g(x, y) enters is selected based on the distance Δz from a scan center plane to an image reconstruction plane in a z-axis direction and the position (x, y) of the pixel point g in the image reconstruction plane, and data of the j-th detector row is used to determine the pixel value of the pixel point g, where the scan center plane at a certain view angle is defined as an x-y plane, and a direction normal to the x-y plane, i.e., a detector row direction, is defined as the z-axis direction.
摘要翻译：为了减少当使用多行检测器时相对于旋转平面倾斜的扫描平面引起的伪像，通过像素点g（x，y）的X射线进入的第j检测器行基于从扫描中心平面到图像重建平面在z轴方向上的距离Deltaz和图像重建平面中的像素点g的位置（x，y）以及第j个检测器的数据行被用于确定像素点g的像素值，其中将某一视角处的扫描中心平面定义为xy平面，并且将垂直于xy平面的方向（即，检测器行方向）定义为 z轴方向。

43. 发明申请

US20050052757A1 Zoom lens barrel and optical equipment 有权
标题翻译：变焦镜筒和光学设备
公开(公告)号：US20050052757A1
公开(公告)日：2005-03-10
申请号：US10938338
申请日：2004-09-09
申请人： Akihiko Nishide
发明人： Akihiko Nishide
IPC分类号： G02B7/04 , G02B7/10 , G02B15/14 , G02B7/02
CPC分类号： G02B7/10
摘要： For the purpose of miniaturizing a zoom lens barrel, a zoom lens of the present invention comprises one lens group which moves at the time of variable power, one diaphragm member which moves at the time of variable power, and a cam member which has a cam section for a lens group, which guides the movement of the above-mentioned lens group at the time of variable power, and a cam section for a diaphragms which guides the movement of the above-mentioned diaphragm member at the time of variable power, wherein the above-mentioned cam section for a lens group and the above-mentioned cam section for a diaphragm are coupled.
摘要翻译：为了使变焦镜头筒小型化，本发明的变焦镜头包括一个在可变功率时移动的透镜组，一个在可变功率时移动的光阑部件，以及一个具有凸轮的凸轮部件用于在可变功率时引导上述透镜组的移动的透镜组的截面，以及用于在可变功率时引导上述隔膜构件的移动的隔膜的凸轮部，其中用于透镜组的上述凸轮部分和用于隔膜的上述凸轮部分联接。

44. 发明授权

US06466639B2 X-ray CT imaging method, subject center position detection method, and X-ray CT apparatus 失效
标题翻译： X射线CT成像方法，对象中心位置检测方法，X射线CT装置等
公开(公告)号：US06466639B2
公开(公告)日：2002-10-15
申请号：US09751953
申请日：2000-12-29
申请人： Masatake Nukui , Akihiko Nishide
发明人： Masatake Nukui , Akihiko Nishide
IPC分类号： A61B603
CPC分类号： A61B6/032 , A61B6/04 , A61B6/488
摘要： In order to detect whether the center position of a subject is offset from a scan center and notify a human operator of the result of the detection, the subject center position is detected based on a projection profile of a parallel view at a view angle of 90° (S5). If the distance between the subject center position and the scan center exceeds a predefined range (e.g., 50 cm) (S6), a warning is displayed on a CRT to prompt the operator to adjust the position of the subject and repeat imaging (S7).
摘要翻译：为了检测被摄体的中心位置是否偏离扫描中心，并向人类操作者通知检测结果，基于视角为90°的平行视图的投影轮廓来检测被摄体中心位置 °（S5）。如果主体中心位置和扫描中心之间的距离超过预定范围（例如50厘米）（S6），则在CRT上显示警告以提示操作者调整被摄体的位置并重复成像（S7）。

45. 发明授权

US08009890B2 Image display apparatus and X-ray CT apparatus 有权
标题翻译：图像显示装置和X射线CT装置
公开(公告)号：US08009890B2
公开(公告)日：2011-08-30
申请号：US11619242
申请日：2007-01-03
申请人： Akihiko Nishide , Akira Hagiwara
发明人： Akihiko Nishide , Akira Hagiwara
IPC分类号： G06K9/00
CPC分类号： G06T5/002 , A61B6/027 , A61B6/032 , A61B6/4085 , G06T11/008 , G06T2207/10081 , G06T2207/20012 , G06T2207/30004
摘要： The present invention aims to realize an improvement in image quality of a two-dimensional display extracted from a three-dimensional display image such as continuous tomographic images which tomographic images at a conventional scan or the like of an X-ray CT apparatus having a two-dimensional X-ray area detector of a matrix structure typified by a multi-row X-ray detector or a flat panel X-ray detector are arranged in a z direction corresponding to an imaging table travel direction. For the purpose, an image display apparatus of the present invention comprises image filter processing device for preforming a image filter processing on the three-dimensional image, wherein said image filter process varies depending on a cross sectional direction of said two-dimensional image to be displayed.
摘要翻译：本发明旨在实现从三维显示图像提取的二维显示图像质量的提高，所述三维显示图像例如是具有两个X射线CT装置的常规扫描等的断层图像的连续断层图像以X射线检测器或平板X射线检测器为代表的矩阵结构的X维面积检测器以对应于成像台行进方向的方向配置。为此，本发明的图像显示装置包括用于对三维图像进行图像滤波处理的图像滤波处理装置，其中所述图像滤波处理根据所述二维图像的横截面方向而变化，显示。

46. 发明申请

US20100091390A1 LENS BARREL AND OPTICAL APPARATUS INCLUDING THE SAME 有权
标题翻译：透镜条和光学装置，包括它们
公开(公告)号：US20100091390A1
公开(公告)日：2010-04-15
申请号：US12578387
申请日：2009-10-13
申请人： Akihiko Nishide
发明人： Akihiko Nishide
IPC分类号： G02B7/02
CPC分类号： G02B7/021
摘要： A lens barrel includes a movable lens unit movable in an optical-axis direction, an actuator configured to move the movable lens unit in the optical-axis direction, a guide member configured to guide the movable lens unit in the optical-axis direction, and a guide-member-holding portion holding the guide member. The guide member is held by the guide-member-holding portion with one end thereof being in a press-fitted state and the other end thereof being in a non-press-fitted state.
摘要翻译：镜筒包括可沿光轴方向移动的可移动透镜单元，构造成沿着光轴方向移动可移动透镜单元的致动器，被构造成沿着光轴方向引导可动透镜单元的引导构件，以及保持引导构件的引导构件保持部。引导构件由导向构件保持部保持，其一端处于压配合状态，另一端处于非压配合状态。

47. 发明授权

US07606345B2 X-ray CT apparatus 有权
标题翻译： X射线CT装置
公开(公告)号：US07606345B2
公开(公告)日：2009-10-20
申请号：US12241647
申请日：2008-09-30
申请人： Akihiko Nishide , Ryosuke Fujimoto , Kenichi Nishizawa , Akira Hagiwara
发明人： Akihiko Nishide , Ryosuke Fujimoto , Kenichi Nishizawa , Akira Hagiwara
IPC分类号： A61B6/00
CPC分类号： A61B6/542 , A61B6/027 , A61B6/032 , Y10S378/901
摘要： An X-ray CT apparatus enables decreasing the degradation of image quality and reducing futile exposure to X-ray in a helical shuttle scan. The X-ray CT apparatus comprises: a gantry rotating device having an X-ray generator for generating the X-ray and an X-ray detector for detecting the generated X-ray and transmitted through a subject; a gantry controller for performing the helical shuttle scan by reciprocally moving the gantry rotating device and the cradle; a scan condition setting device for setting the scan condition of the helical shuttle scan in a predetermined range in the direction of body axis of the subject; an X-ray projection data acquisition device for acquiring the X-ray projection data; a scan controller for controlling the scan as specified in the scan condition; and a image reconstruction device for performing the image reconstruction processing based on the X-ray projection data.
摘要翻译： X射线CT装置能够降低图像质量的降低并减少在螺旋穿梭扫描中对X射线的无效暴露。 X射线CT装置包括：具有用于产生X射线的X射线发生器的台架旋转装置和用于检测所产生的X射线并透过对象的X射线检测器; 台架控制器，用于通过往复地移动所述台架旋转装置和所述支架进行螺旋穿梭扫描; 扫描条件设定装置，用于将螺旋穿梭扫描的扫描条件设定在被检体的体轴方向的规定范围内; 用于获取X射线投影数据的X射线投影数据获取装置; 扫描控制器，用于根据扫描条件指定扫描; 以及图像重建装置，用于基于X射线投影数据执行图像重建处理。

48. 发明申请

US20090180585A1 X-RAY CT APPARATUS AND X-RAY CT IMAGING METHOD 有权
标题翻译： X射线CT装置和X射线CT成像方法
公开(公告)号：US20090180585A1
公开(公告)日：2009-07-16
申请号：US12324557
申请日：2008-11-26
申请人： Ryosuke Fujimoto , Yusuke Nozawa , Akihiko Nishide
发明人： Ryosuke Fujimoto , Yusuke Nozawa , Akihiko Nishide
IPC分类号： H05G1/60 , H05G1/64 , H05G1/58
CPC分类号： A61B6/032 , A61B6/027 , A61B6/405 , A61B6/482 , A61B6/541
摘要： An X-ray CT apparatus includes an X-ray generating section for generating X-rays with a plurality of X-ray tube voltages; a data collecting section for collecting, synchronously with a data collection signal, X-ray projection data from X-rays with each X-ray tube voltage switched by an X-ray tube voltage switching signal; and a control section for controlling a timed moment for switching of the X-ray tube voltage and a timed moment for start of data collection so that the timed moment for start of data collection at each X-ray tube voltage in the data collection signal is delayed relative to the timed moment for switching of the X-ray tube voltage to that X-ray tube voltage in the X-ray tube voltage switching signal by Δt1, Δt2 depending upon imaging conditions.
摘要翻译： X射线CT装置包括用于产生具有多个X射线管电压的X射线的X射线产生部分; 数据收集部分，用于与X射线管电压切换信号切换的每个X射线管电压同时收集来自X射线的数据收集信号的X射线投影数据; 以及控制部，其控制切换X射线管电压的定时矩和开始数据采集的定时矩，使得数据采集信号中的每个X射线管电压处的数据收集开始的定时时刻为相对于根据成像条件，通过Deltat1，Deltat2将X射线管电压切换到X射线管电压切换信号中的X射线管电压的定时时间延迟。

49. 发明申请

US20090092224A1 X-RAY CT APPARATUS 有权
标题翻译： X射线CT装置
公开(公告)号：US20090092224A1
公开(公告)日：2009-04-09
申请号：US12241647
申请日：2008-09-30
申请人： Akihiko Nishide , Ryosuke Fujimoto , Kenichi Nishizawa , Akira Hagiwara
发明人： Akihiko Nishide , Ryosuke Fujimoto , Kenichi Nishizawa , Akira Hagiwara
IPC分类号： A61B6/00
CPC分类号： A61B6/542 , A61B6/027 , A61B6/032 , Y10S378/901
摘要： An X-ray CT apparatus enables decreasing the degradation of image quality and reducing futile exposure to X-ray in a helical shuttle scan. The X-ray CT apparatus comprises: a gantry rotating device having an X-ray generator for generating the X-ray and an X-ray detector for detecting the generated X-ray and transmitted through a subject; a gantry controller for performing the helical shuttle scan by reciprocally moving the gantry rotating device and the cradle; a scan condition setting device for setting the scan condition of the helical shuttle scan in a predetermined range in the direction of body axis of the subject; an X-ray projection data acquisition device for acquiring the X-ray projection data; a scan controller for controlling the scan as specified in the scan condition; and a image reconstruction device for performing the image reconstruction processing based on the X-ray projection data.
摘要翻译： X射线CT装置能够降低图像质量的降低并减少在螺旋穿梭扫描中对X射线的无效暴露。 X射线CT装置包括：具有用于产生X射线的X射线发生器的台架旋转装置和用于检测所产生的X射线并透过被检体的X射线检测器; 台架控制器，用于通过往复地移动所述台架旋转装置和所述支架进行螺旋穿梭扫描; 扫描条件设定装置，用于将螺旋穿梭扫描的扫描条件设定在被检体的体轴方向的规定范围内; 用于获取X射线投影数据的X射线投影数据获取装置; 扫描控制器，用于根据扫描条件指定扫描; 以及图像重建装置，用于基于X射线投影数据执行图像重建处理。

50. 发明申请

US20080260092A1 X-RAY TOMOGRAPHIC IMAGING APPARATUS 有权
标题翻译： X射线成像装置
公开(公告)号：US20080260092A1
公开(公告)日：2008-10-23
申请号：US11944262
申请日：2007-11-21
申请人： Yasuhiro Imai , Akihiko Nishide
发明人： Yasuhiro Imai , Akihiko Nishide
IPC分类号： H05G1/60 , G06K9/00
CPC分类号： A61B6/405 , A61B6/027 , A61B6/032 , A61B6/4035 , A61B6/4042 , A61B6/482 , A61B6/505 , G06T11/008
摘要： For the purpose of providing an X-ray tomographic imaging apparatus for displaying a dual-energy image to facilitate diagnosis by an operator, an X-ray tomographic imaging apparatus (10) comprises: an image comparison information calculating section (24) for calculating image comparison information between said first-energy projection dataset (LD) or first-energy tomographic image (LT) and said second-energy projection dataset (HD) or second-energy tomographic image (HT); a region-of-interest defining section (23) for defining a region of interest; a weighting factor determining section (25-2) for determining a weighting factor for use in weighted subtraction processing between said first-energy projection dataset or first-energy tomographic image and said second-energy projection dataset or second-energy tomographic image, such that said image comparison information in said region of interest can be substantially eliminated by conducting said weighted subtraction processing; and a dual-energy image reconstructing section (22) for reconstructing a dual-energy image by conducting weighted subtraction processing between said first-energy projection dataset or first-energy tomographic image and said second-energy projection dataset or second-energy tomographic image used in said image comparison information calculating section, using a weighting factor determined at said weighting factor determining section.
摘要翻译：为了提供用于显示双能量图像以便于操作者诊断的X射线断层成像装置，X射线断层成像装置（10）包括：用于计算图像的图像比较信息计算部（24）所述第一能量投影数据集（LD）或第一能量断层图像（LT）和所述第二能量投影数据集（HD）或第二能量断层图像（HT）之间的比较信息; 用于定义感兴趣区域的兴趣区域定义部分（23）; 用于确定在所述第一能量投影数据集或第一能量断层图像与所述第二能量投影数据集或第二能量层析成像之间的加权减法处理中使用的加权因子的加权因子确定部分（25-2），使得通过进行所述加权减法处理可以基本上消除所述感兴趣区域中的所述图像比较信息; 以及双能量图像重建部分（22），用于通过在所述第一能量投影数据集或第一能量断层图像和所述第二能量投影数据集或所使用的第二能量断层图像之间进行加权减法处理来重建双能量图像在所述图像比较信息计算部分中，使用在所述加权因子确定部分确定的加权因子。

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