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51. 发明申请

US20050053189A1 X-ray CT apparatus and X-ray tube 失效
标题翻译： X射线CT装置和X射线管
公开(公告)号：US20050053189A1
公开(公告)日：2005-03-10
申请号：US10924111
申请日：2004-08-23
申请人： Makoto Gohno , Akira Hagiwara
发明人： Makoto Gohno , Akira Hagiwara
IPC分类号： A61B6/03 , G01N23/04 , H01J35/10 , H01J35/14 , H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： A61B6/405 , A61B6/032 , A61B6/4028 , A61B6/4035 , A61B6/482 , G01N23/046 , G01N2223/419 , H01J35/10 , H01J35/14 , H01J2235/086
摘要： An X-ray CT apparatus capable of imaging a subject based on X-rays of multiple energy levels while using an ordinary X-ray detector includes an X-ray tube which generates X-rays from multiple focal points of different 3-dimensional positions sequentially on a time-division basis, a plurality of filters which implement the filtering individually for the X-rays generated individually from the focal points, a collimator which equalizes the irradiation range of the X-rays generated individually from the focal points, collection means which collects projection data of multiple views of a subject of imaging for the X-rays generated individually from the focal points, and reconstruction means which reconstructs an image based on the projection data. The anode of the X-ray tube has multiple impingement portions where electrons released by the cathode impinge at multiple positions on the trajectory of electrons sequentially on a time-division basis.
摘要翻译：在使用普通X射线检测器的情况下，能够基于多个能级的X射线成像被检体的X射线CT装置包括从不同的3维位置的多个焦点依次产生X射线的X射线管在时分的基础上，对从焦点分别生成的X射线分别进行滤波的多个滤波器，使来自焦点单独产生的X射线的照射范围相等的准直仪，收集装置，收集从焦点单独产生的X射线的成像对象的多个视图的投影数据，以及基于投影数据重建图像的重建装置。 X射线管的阳极具有多个冲击部分，其中由阴极释放的电子在时间基础上依次冲击电子轨迹上的多个位置。

52. 发明授权

US5191863A Rotary sleeve-valve internal combustion engine 失效
标题翻译：旋转式阀门内燃机
公开(公告)号：US5191863A
公开(公告)日：1993-03-09
申请号：US761750
申请日：1991-09-17
申请人： Akira Hagiwara
发明人： Akira Hagiwara
IPC分类号： F01B7/14 , F01B15/00 , F01L7/04 , F02B1/04 , F02B3/06 , F02B75/04 , F02B75/16 , F02B75/28 , F02B75/36
CPC分类号： F01B15/007 , F01B7/14 , F01L7/04 , F02B75/044 , F02B75/16 , F02B75/36 , F02B1/04 , F02B3/06 , F02B75/28
摘要： The present invention is an internal combustion engine having a rotary sleeve valve mechanism with a sleeve valve which has an opening formed in the outer peripheral surface for suction of fuel and discharge of exhaust gas. The present invention achieves an improvement in the admission and exhaust efficiency and simplification of the valve mechanism by employing a rotating sleeve valve. The rotary sleeve-valve internal combustion engine has a cylindrical rotary cylinder valve (3) which is rotatably supported in an engine block (1). An opening (5) which is provided in the outer peripheral wall surface of the rotary cylinder valve (3) provides communication with an inlet port (10) during admission and with an exhaust port (15) during exhaust. A seal ring (40) is provided around the periphery of the opening (5) to effect gas seal for the area between the engine block (1) and the inner peripheral wall surface (7). A gear (4) that is provided on one end of the rotary cylinder valve (3) is in mesh with a crank gear (26) provided on a crankshaft (20). The rotation of the crankshaft (20) and that of the rotary cylinder valve (3) are interlocked with each other to effect admission and exhaust synchronously.
摘要翻译： PCT No.PCT / JP89 / 01211 Sec。 371日期1991年9月17日 102（e）1991年9月17日PCT PCT 1989年12月1日PCT公布。出版物WO90 / 11432 日本1990年04月10日。本发明是一种具有旋转套筒阀机构的内燃机，该套筒阀具有形成在外周面上的用于吸入燃料和排出废气的开口。本发明通过采用旋转套筒阀实现进气和排气效率的提高和阀机构的简化。旋转套筒内燃机具有可旋转地支撑在发动机缸体（1）中的圆柱形旋转气缸阀（3）。设置在旋转气缸阀（3）的外周壁面的开口（5）在进气期间与进气口（10）连通，并且在排气过程中与排气口（15）连通。在开口（5）的周围设置密封环（40），以实现发动机缸体（1）和内周壁面（7）之间的区域的气密封。设置在旋转气缸阀（3）的一端的齿轮（4）与设置在曲轴（20）上的曲柄齿轮（26）啮合。曲轴（20）和旋转气缸阀（3）的旋转彼此互锁以同步地进入和排气。

53. 发明授权

US08576981B2 Image reconstruction method and X-ray CT apparatus 有权
标题翻译：图像重建方法和X射线CT装置
公开(公告)号：US08576981B2
公开(公告)日：2013-11-05
申请号：US12652711
申请日：2010-01-05
申请人： Akira Hagiwara
发明人： Akira Hagiwara
IPC分类号： A61B6/03
CPC分类号： G06T11/006 , A61B6/027 , G06T2211/421
摘要： An image reconstruction method includes a reconstruction algorithm of pixel data, weighting coefficients by which first projection data and second projection data at which a corresponding X-ray beam passes through a pixel lying on a reconstruction plane and which are opposite in view angle direction to each other, are to be multiplied, are calculated by equations each using a term of a distance between an X-ray generator and detector system and the reconstruction plane plus an offset distance at the acquisition of the projection data.
摘要翻译：图像重建方法包括：像素数据的重建算法，加权系数，第一投影数据和第二投影数据，相应的X射线束通过像素位于重构平面上的像素，并且与第其他，将被乘以，通过各自使用X射线发生器和检测器系统之间的距离的项和重构平面加上在获取投影数据的偏移距离的等式来计算。

54. 发明授权

US08319395B2 Power supply device and image forming apparatus 有权
标题翻译：电源装置和图像形成装置
公开(公告)号：US08319395B2
公开(公告)日：2012-11-27
申请号：US12703242
申请日：2010-02-10
申请人： Toru Kosaka , Akira Hagiwara
发明人： Toru Kosaka , Akira Hagiwara
IPC分类号： H01L41/107
CPC分类号： G03G15/043 , G03G15/0409
摘要： A power supply device includes: an oscillator configured to output a clock signal; a pulse output unit configured to output a pulse by dividing the frequency of the clock signal; a switching element driven by the pulse; a piezoelectric transformer configured to intermittently receive a voltage from the switching element and to output a high alternating current voltage; a rectifier configured to convert the high alternating current voltage to a high direct current voltage; an output voltage conversion unit configured to convert the high direct current voltage to a low direct current voltage; a target setter configured to output a target value; and a comparison unit configured to compare the low direct current voltage with the target value and to output a comparison result. A frequency division ratio of the pulse is controlled according to the comparison result, and thereby is changed so as to obtain the target value.
摘要翻译：电源装置包括：振荡器，被配置为输出时钟信号; 脉冲输出单元，被配置为通过划分所述时钟信号的频率来输出脉冲; 由脉冲驱动的开关元件; 压电变压器，被配置为间歇地接收来自所述开关元件的电压并输出高交流电压; 整流器，被配置为将高交流电压转换成高直流电压; 输出电压转换单元，被配置为将高直流电压转换成低直流电压; 配置为输出目标值的目标设定器; 以及比较单元，被配置为将低直流电压与目标值进行比较并输出比较结果。根据比较结果控制脉冲的分频比，从而改变以获得目标值。

55. 发明授权

US08265511B2 Power source device and image forming apparatus 有权
标题翻译：电源装置和图像形成装置
公开(公告)号：US08265511B2
公开(公告)日：2012-09-11
申请号：US12604473
申请日：2009-10-23
申请人： Toru Kosaka , Masao Yaji , Akira Hagiwara
发明人： Toru Kosaka , Masao Yaji , Akira Hagiwara
IPC分类号： G03G15/00
CPC分类号： G03G15/1675 , G03G15/80
摘要： A power source device includes an oscillator generating a clock, a frequency division unit dividing the clock to output a pulse, a sequence generation unit generating sequences “N” with respect to each switching of the pulse, a frequency division ratio setting unit setting frequency division ratio, a switching element driven by the pulse, and a piezoelectric transformer outputting alternating high voltage from a secondary-side when a primary-side is applied with voltage. The generated sequence and the set frequency division ratio are compared to output the pulses of fractional-M, -M+1 frequencies. An average frequency division ratio of the pulses of fractional-M, -M+1 frequencies determined by (M×α)+(M+1)×β/(α+β), where α and β respectively represent the number of pulses of “M” and “M+1” per unit time. The average frequency division ratio and frequency division ratio become equal at a sequence generation cycle and approximated in a period shorter than the sequence generation cycle.
摘要翻译：电源装置包括产生时钟的振荡器，对时钟进行分频以输出脉冲的序列生成部，相对于脉冲的切换产生序列“N”，分频比设定部设定分频比率，由脉冲驱动的开关元件，以及当初级侧施加电压时从次级侧输出交替高压的压电变压器。将产生的序列和设定的分频比进行比较以输出分数M，-M + 1个频率的脉冲。（M×α）+（M + 1）×＆bgr; /（α+＆bgr））确定的分数M，-M + 1频率的脉冲的平均分频比，其中α和＆分别表示每单位时间的“M”和“M + 1”的脉冲数。平均分频比和分频比在序列生成周期变得相等，并且在比序列生成周期短的时段内近似。

56. 发明授权

US07949090B2 X-ray CT apparatus and image reconstruction method 有权
标题翻译： X射线CT装置及图像重建方法
公开(公告)号：US07949090B2
公开(公告)日：2011-05-24
申请号：US12241579
申请日：2008-09-30
申请人： Akira Hagiwara , Tsuyoshi Ogata
发明人： Akira Hagiwara , Tsuyoshi Ogata
IPC分类号： A61B6/03
CPC分类号： G06T11/006 , A61B6/027 , A61B6/035 , A61B6/04
摘要： An X-ray CT apparatus is provided for reducing the amount of computation at image reconstruction thereby to shorten an image reconstruction time. The X-ray CT apparatus comprises a cradle which moves in a horizontal direction to convey a subject to a photography space, an X-ray detector comprising a plurality of detecting element rows, for obtaining projection data by a helical scan when the cradle is moved under acceleration/deceleration and at a constant velocity, and backprojection processing device for performing a backprojection process on the projection data. When image reconstruction is carried out using the projection data acquired when the cradle is moved under acceleration/deceleration, the backprojection processing device assumes a virtual image reconstruction plane P′ where the cradle is assumed to be moved at the constant velocity, with respect to an image reconstruction plane P of each view and backprojects projection data onto the virtual image reconstruction plane P′.
摘要翻译：提供一种用于减少图像重建时的计算量的X射线CT装置，从而缩短图像重建时间。所述X射线CT装置包括在水平方向上移动以将受试者传送到摄影空间的支架，包括多个检测元件行的X射线检测器，用于当所述支架移动时通过螺旋扫描获得投影数据在加速/减速和恒定速度下，以及用于对投影数据执行反投影处理的反投影处理装置。当使用在支架在加速/减速下移动时获取的投影数据进行图像重建时，反投影处理装置假设虚拟图像重构平面P'，其中假定托架以恒定速度移动，相对于每个视图的图像重构平面P和后投影数据投影到虚像重建平面P'上。

57. 发明授权

US07933377B2 Method of CT perfusion imaging and apparatus for implementing same 有权
标题翻译： CT灌注成像方法及其实现方法
公开(公告)号：US07933377B2
公开(公告)日：2011-04-26
申请号：US12477677
申请日：2009-06-03
申请人： Jiang Hsieh , Paul E. Licato , Akira Hagiwara , Mark Vincent Profio , Karen Ann Procknow , Saad Ahmed Sirohey , Srinivas Aluri , Olga Imas
发明人： Jiang Hsieh , Paul E. Licato , Akira Hagiwara , Mark Vincent Profio , Karen Ann Procknow , Saad Ahmed Sirohey , Srinivas Aluri , Olga Imas
IPC分类号： A61B6/00
CPC分类号： A61B6/032 , A61B5/026 , A61B6/027 , A61B6/0457 , A61B6/4291 , G06T11/008
摘要： A CT system includes a scintillator array having a first length in an axial direction of the CT system, the scintillator array includes a plurality of scintillator cells along the first length. The CT system includes a controller configured to repeatedly position a subject fore and aft along the axial direction and over a second length of the CT system, the second length greater than the first length, energize an x-ray source to emit x-rays toward the subject while the subject is being repeatedly positioned, and obtain non-uniform projection data of the subject from the scintillator array, the non-uniform projection data comprising the x-rays received from the x-ray source while the subject is repeatedly positioned. The CT system includes a computer programmed to reconstruct a plurality of temporally non-uniformly spaced images from the non-uniform projection data, interpolate the plurality of non-uniform images to form a plurality of temporally uniform images, and apply a perfusion map generation process to the plurality of temporally uniform images.
摘要翻译： CT系统包括在CT系统的轴向上具有第一长度的闪烁体阵列，闪烁体阵列包括沿着第一长度的多个闪烁体单元。 CT系统包括控制器，该控制器被配置为沿着轴向方向和CT系统的第二长度反复地定位被检体的前后，第二长度大于第一长度，激励X射线源以向x射线发射X射线在被摄体被重复定位的同时，从闪烁体阵列获得被摄体的不均匀的投影数据，该非均匀投影数据包括在被摄体重复定位时从x射线源接收的X射线。 CT系统包括被编程为从不均匀投影数据重构多个时间上不均匀的图像的计算机，内插多个非均匀图像以形成多个时间上均匀的图像，并且应用灌注图生成过程到多个时间均匀的图像。

58. 发明申请

US20100172563A1 X-RAY CT APPARATUS 有权
标题翻译： X射线CT装置
公开(公告)号：US20100172563A1
公开(公告)日：2010-07-08
申请号：US12652634
申请日：2010-01-05
申请人： Akira Hagiwara
发明人： Akira Hagiwara
IPC分类号： G06K9/62 , H05G1/60
CPC分类号： A61B6/032 , A61B6/027 , G06T11/003 , G06T11/006
摘要： An X-ray CT apparatus reconstructs a CT image (extended CT image) at each slice position lying outside a relative linear movement range at a helical scan or the like at low exposure and with high image quality. Scans each provided with a residence time are executed at relative linear movement start and end points (Zs and Zf). Projection data in a view range (F) corresponding to a predetermined view angle centering on a view (CVp1,zs) corresponding to a relative linear movement start time or a view shifted previously therefrom by the number of views (M), or a view (CVp1,zf) corresponding to a relative linear movement end time or a view shifted backward therefrom by the number of views (N) are used as image reconstruction projection data for extended CT images in image extension regions (Rs and Rf).
摘要翻译： X射线CT装置在低曝光和高图像质量的螺旋扫描等处，在位于相对线性运动范围之外的每个切片位置处重建CT图像（扩展CT图像）。每个具有停留时间的扫描在相对线性移动开始点和终点（Zs和Zf）处执行。以对应于相对线性移动开始时间的视图（CVp1，zs）为中心的预定视角对应的视图范围（F）中的投影数据或者通过视图数（M）先前偏移的视图或视图对应于相对线性移动结束时间的视频重建投影数据（CVp1，zf）或者通过视图数（N）向后移动的视图被用作图像扩展区域（Rs和Rf）中的扩展CT图像的图像重建投影数据。

59. 发明授权

US07324622B2 Radiation computed tomography apparatus and tomographic image producing method 失效
标题翻译：辐射计算机断层摄影装置及断层图像制作方法
公开(公告)号：US07324622B2
公开(公告)日：2008-01-29
申请号：US10827932
申请日：2004-04-20
申请人： Kotoko Morikawa , Akira Hagiwara
发明人： Kotoko Morikawa , Akira Hagiwara
IPC分类号： G01N23/00
CPC分类号： A61B6/5205 , A61B6/032 , G01N23/046 , G01N2223/419 , G01N2223/612 , G06T11/005
摘要： A computed tomography (CT) imaging system for improving the image quality of a tomographic image at a predefined image production position in a subject's axis direction in tomographic image reconstruction by axial scanning. The CT system includes an X-ray tube and a detector array configured to conduct a plurality of scans for detecting X-rays passing through a region to be examined around an axis AX of the region to be examined at different positions along the subject's axis Ax direction; and for each of the plurality of scans, and a reconstructing section configured to calculate and reconstruct data for tomographic images of the region to be examined at a position corresponding to a detector row in the axis direction based on detected data acquired in that scan, and combine the data for the plurality of reconstructed tomographic images to generate data for a combined tomographic image at the position corresponding to the detector row.
摘要翻译：一种计算机断层摄影（CT）成像系统，用于通过轴向扫描在断层图像重建中改善被检体的轴方向上的预定图像生成位置的断层图像的图像质量。 CT系统包括X射线管和检测器阵列，其被配置为进行多次扫描，以沿着被检体的轴Ax的不同位置检测穿过待检查区域的X射线在待检查区域的轴线AX周围方向; 并且对于所述多个扫描中的每一个，以及重建部分，被配置为基于在所述扫描中获取的检测数据，在与轴检测器行对应的位置处计算和重建要检查的区域的断层图像的数据，以及组合多个重建断层图像的数据，以在与检测器行对应的位置处生成用于组合断层图像的数据。

60. 发明授权

US07187756B2 X-ray CT apparatus and X-ray tube 失效
标题翻译： X射线CT装置和X射线管
公开(公告)号：US07187756B2
公开(公告)日：2007-03-06
申请号：US10924111
申请日：2004-08-23
申请人： Makoto Gohno , Akira Hagiwara
发明人： Makoto Gohno , Akira Hagiwara
IPC分类号： H01J35/10
CPC分类号： A61B6/405 , A61B6/032 , A61B6/4028 , A61B6/4035 , A61B6/482 , G01N23/046 , G01N2223/419 , H01J35/10 , H01J35/14 , H01J2235/086
摘要： An X-ray CT apparatus capable of imaging a subject based on X-rays of multiple energy levels while using an ordinary X-ray detector includes an X-ray tube which generates X-rays from multiple focal points of different 3-dimensional positions sequentially on a time-division basis, a plurality of filters which implement the filtering individually for the X-rays generated individually from the focal points, a collimator which equalizes the irradiation range of the X-rays generated individually from the focal points, collection means which collects projection data of multiple views of a subject of imaging for the X-rays generated individually from the focal points, and reconstruction means which reconstructs an image based on the projection data. The anode of the X-ray tube has multiple impingement portions where electrons released by the cathode impinge at multiple positions on the trajectory of electrons sequentially on a time-division basis.
摘要翻译：在使用普通X射线检测器的情况下，能够基于多个能级的X射线成像被检体的X射线CT装置包括从不同的3维位置的多个焦点依次产生X射线的X射线管在时分的基础上，对从焦点分别生成的X射线分别进行滤波的多个滤波器，使来自焦点单独产生的X射线的照射范围相等的准直仪，收集装置，收集从焦点单独产生的X射线的成像对象的多个视图的投影数据，以及基于投影数据重建图像的重建装置。 X射线管的阳极具有多个冲击部分，其中由阴极释放的电子在时间基础上依次冲击电子轨迹上的多个位置。

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