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Patent Agency Ranking
公开(公告)号：US20140270055A1
公开(公告)日：2014-09-18
申请号：US14288753
申请日：2014-05-28
Inventor： Daizo OIKAWA , Fumio Ishiyama
CPC classification number: H01J35/025 , A61B6/032 , A61B6/405 , A61B6/4241 , A61B6/54 , A61B6/542 , A61B6/58 , G05F1/10 , G05F1/565 , H01J37/241 , H01J37/248 , H01J37/3023 , H01J2237/2487 , H05G1/32 , H05G1/46
Abstract: X-ray CT apparatus is provided in which the photon energy distribution of X-rays to be radiated is flattened. X-ray CT apparatus includes an X-ray tube, a detector, a data acquisition system, a tube voltage generator, and a grid controller. The X-ray tube radiates X-rays onto a subject. The detector includes multiple detection elements for detecting photons forming the X-rays. The data acquisition system counts the number of the detected photons to acquire projection data based on the counted photons. The tube voltage generator applies the tube voltage to the X-ray tube while changing the tube voltage of the X-ray tube in a predetermined cycle. A tube current controller decreases the tube current upon an increase in the tube voltage, and increases the tube current upon a decrease in the tube voltage. Thus, the photon energy distribution of the X-rays radiated from the X-ray tube is flattened.
Abstract translation: 提供X射线CT装置，其中要辐射的X射线的光子能量分布变平。 X射线CT装置包括X射线管，检测器，数据采集系统，管电压发生器和电网控制器。 X射线管将X射线照射到被摄体上。 检测器包括用于检测形成X射线的光子的多个检测元件。 数据采集系统根据计数的光子计算检测到的光子数以获得投影数据。 管电压发生器将管电压施加到X射线管，同时以预定的周期改变X射线管的管电压。 管电流控制器在管电压增加时降低管电流，并且在管电压降低时增加管电流。 因此，从X射线管辐射的X射线的光子能量分布变平。
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公开(公告)号：US09633814B2
公开(公告)日：2017-04-25
申请号：US14288753
申请日：2014-05-28
Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATION
Inventor： Daizo Oikawa , Fumio Ishiyama
IPC: H01J35/02 , H01J37/24 , H05G1/32 , H05G1/46 , G05F1/10 , G05F1/56 , G05F1/565 , H01J37/302 , H01J37/248 , A61B6/00 , A61B6/03
CPC classification number: H01J35/025 , A61B6/032 , A61B6/405 , A61B6/4241 , A61B6/54 , A61B6/542 , A61B6/58 , G05F1/10 , G05F1/565 , H01J37/241 , H01J37/248 , H01J37/3023 , H01J2237/2487 , H05G1/32 , H05G1/46
Abstract: X-ray CT apparatus is provided in which the photon energy distribution of X-rays to be radiated is flattened. X-ray CT apparatus includes an X-ray tube, a detector, a data acquisition system, a tube voltage generator, and a grid controller. The X-ray tube radiates X-rays onto a subject. The detector includes multiple detection elements for detecting photons forming the X-rays. The data acquisition system counts the number of the detected photons to acquire projection data based on the counted photons. The tube voltage generator applies the tube voltage to the X-ray tube while changing the tube voltage of the X-ray tube in a predetermined cycle. A tube current controller decreases the tube current upon an increase in the tube voltage, and increases the tube current upon a decrease in the tube voltage. Thus, the photon energy distribution of the X-rays radiated from the X-ray tube is flattened.
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公开(公告)号：US10729401B2
公开(公告)日：2020-08-04
申请号：US15810196
申请日：2017-11-13
Applicant: Toshiba Medical Systems Corporation
Inventor： Fumio Ishiyama
Abstract: A high-voltage device according to embodiments comprises an inverter circuit configured to convert a direct-current voltage into an alternating-current voltage, a high-voltage transformer, an insulating layer and a conductive layer. The high-voltage transformer includes a primary coil on an input side and multiple secondary coils on an output side and raises a voltage of output of the inverter circuit. The insulating layer is provided on an outer circumference of a bundle of winding wires of each of the secondary coils so as to individually cover each of the secondary coils. The conductive layer is provided on an outer circumference of each of the insulating layers so as to individually cover each of the insulating layers.
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公开(公告)号：US10349507B2
公开(公告)日：2019-07-09
申请号：US14263173
申请日：2014-04-28
Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATION
Inventor： Fumio Ishiyama , Kenji Hirohata
IPC: H02H5/04 , G01K1/12 , G07C3/00 , G06F17/40 , G06F19/00 , H05G1/54 , H01L23/34 , H01L23/00 , A61B6/03 , A61B6/00 , H05G1/10 , G08B21/18 , H01L25/07 , G16H40/40
Abstract: A medical apparatus includes a power device, a temperature sensor, a conversion processing unit and a prediction time period calculation unit. The temperature sensor detects temperature data. The conversion processing unit refers to temperature data obtained by the temperature sensor in a table in which at least one of temperature data for inside a case covering the power device and temperature data for a wire bonded to the power device is associated with data of actually measured temperatures, and obtains at least one of the temperature data for inside the case and the temperature data for the wire. The prediction time period calculation unit calculates a prediction time period until a failure of the power device based on the obtained temperature data.
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公开(公告)号：US09561007B2
公开(公告)日：2017-02-07
申请号：US14022900
申请日：2013-09-10
Applicant: Toshiba Medical Systems Corporation
Inventor： Fumio Ishiyama
CPC classification number: A61B6/022 , A61B6/4007 , H05G1/70
Abstract: To provide an X-ray diagnostic apparatus capable of providing a stereoscopic perspective image in the form of a video image while reducing exposure dose. An X-ray diagnosis apparatus according to an embodiment includes: a main row X-ray source group including a plurality of X-ray sources; an X-ray detection section disposed opposite to the X-ray sources; a timing controller that controls a switching timing of the X-ray sources and an X-ray generation position; an image acquisition section that acquires output image data from the X-ray detection section in synchronization with the switching timing; and a stereoscopic image display section that displays the output image data as a plurality of images having different disparities.
Abstract translation: 提供能够以减少曝光剂量的方式提供视频图像形式的立体透视图像的X射线诊断装置。 根据实施例的X射线诊断装置包括：主行X射线源组，包括多个X射线源; 与X射线源相对设置的X射线检测部; 控制X射线源的切换定时和X射线产生位置的定时控制器; 图像获取部，其与切换定时同步地从X射线检测部获取输出图像数据; 以及将输出图像数据显示为具有不同差异的多个图像的立体图像显示部。
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