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公开(公告)号：US20240065644A1
公开(公告)日：2024-02-29
申请号：US18448982
申请日：2023-08-14
Applicant: FUJIFILM CORPORATION
Inventor： Sho SHIMIZUKAWA , Takashi TAJIMA , Tatsuya TANEICHI , Naoyuki NISHINO , Hisatsugu HORIUCHI
CPC classification number: A61B6/032 , A61B6/4014 , A61B6/4078 , A61B6/5241 , A61B6/54
Abstract: An imaging control unit performs conventional scanning, which directs a rotation mechanism to rotate a radiation source and a radiation detector without changing a positional relationship between a subject, and the radiation source and the radiation detector in a rotation axis direction, directs the radiation source to emit radiation whenever the radiation source and the radiation detector are rotated by a preset angle, and directs the radiation detector to output a projection image, at a plurality of height positions along the rotation axis direction. The image processing unit generates a tomographic image on the basis of the projection images obtained at the plurality of height positions.
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公开(公告)号：US20230165550A1
公开(公告)日：2023-06-01
申请号：US18045821
申请日：2022-10-11
Applicant: FUJIFILM CORPORATION
Inventor： Sho SHIMIZUKAWA
CPC classification number: A61B6/4208 , G01T1/20181
Abstract: An electronic cassette has a detection panel in which pixels accumulating charge corresponding to radiation emitted from a radiation source are arranged. A CPU of the electronic cassette transmits and receives a synchronizing signal to and from a radiation source control device. The CPU of the electronic cassette receives a setting notification signal indicating that irradiation conditions have been set from a console. After receiving the setting notification signal, the CPU of the electronic cassette directs the detection panel to start a charge reading operation. The CPU of the electronic cassette transmits an imaging preparation completion signal to the console after a predetermined number of charge reading operations are completed to notify that the predetermined number of charge reading operations have been completed.
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公开(公告)号：US20220346729A1
公开(公告)日：2022-11-03
申请号：US17720244
申请日：2022-04-13
Applicant: FUJIFILM CORPORATION
Inventor： Takashi TAJIMA , Masakazu FUKUYO , Sho SHIMIZUKAWA , Takeyasu KOBAYASHI , Hisatsugu HORIUCHI , Naoyuki NISHINO
Abstract: A CT apparatus includes a radiation source that emits radiation, a radiation detector that detects the radiation, an annular frame to which the radiation source and the radiation detector are attached and in which a subject is positioned in a bore, and three columns that hold the frame to be movable up and down in a vertical direction.
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公开(公告)号：US20190183448A1
公开(公告)日：2019-06-20
申请号：US16197750
申请日：2018-11-21
Applicant: FUJIFILM Corporation
Inventor： Hisatsugu HORIUCHI , Sho SHIMIZUKAWA , Masateru TATEISHI , Shinsuke NOGUCHI
IPC: A61B6/00
Abstract: A radiography support device that supports imaging of an object with a radiation detection panel in which a plurality of pixels are two-dimensionally arranged and which detects radiation emitted from a radiation source, includes: a first reading control unit that reads first pixel signals from at least some of the plurality of pixels in a state in which the radiation is not emitted from the radiation source and a state in which the object is placed on the radiation detection panel; a first arithmetic unit that calculates a position of the object with respect to the radiation detection panel based on the first pixel signals; and a notification processing unit that performs a notification process in a case in which the position of the object is out of a predetermined range.
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公开(公告)号：US20240065653A1
公开(公告)日：2024-02-29
申请号：US18356163
申请日：2023-07-20
Applicant: FUJIFILM CORPORATION
Inventor： Sho SHIMIZUKAWA , Takashi TAJIMA , Tatsuya TANEICHI , Naoyuki NISHINO , Hisatsugu HORIUCHI
CPC classification number: A61B6/4014 , A61B6/032 , A61B6/0478 , A61B6/54
Abstract: A CT apparatus includes a plurality of imaging units, a rotation mechanism, and a CPU. The imaging unit includes a radiation source and a radiation detector. The rotation mechanism rotates the plurality of imaging units around a body axis of the subject while maintaining a disposition interval. An imaging control unit of the CPU controls operations of the plurality of imaging units and the rotation mechanism. An angular interval that is determined by a frame rate of the radiation detector and a rotation speed of the imaging unit and that defines an acquisition time of a projection image based on the radiation is the same for the plurality of imaging units. The plurality of imaging units have different phases in a rotation direction, and positions where the plurality of imaging units acquire the projection images are separated by a set angle that is less than the angular interval.
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Patent Agency Ranking
公开(公告)号：US20190277981A1
公开(公告)日：2019-09-12
申请号：US16292674
申请日：2019-03-05
Applicant: FUJIFILM Corporation
Inventor： Sho SHIMIZUKAWA , Masateru TATEISHI , Koji TANINAI , Kohei GEMMA
Abstract: An electronic cassette has a configuration in which a first sensor panel and a second sensor panel are sequentially arranged in a thickness direction. The first sensor panel includes a first light detection substrate and a first scintillator. The periphery of the first scintillator is covered by a moisture-proof sealing layer. The sealing layer is made of a conductive material. The sealing layer is connected to the inner surface of a housing made of a conductive material through a connection portion. Therefore, the sealing layer has the same potential as the ground potential of the housing which is a reference potential and functions as a conductor layer.
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公开(公告)号：US20190274648A1
公开(公告)日：2019-09-12
申请号：US16292699
申请日：2019-03-05
Applicant: FUJIFILM Corporation
Inventor： Koji TANINAI , Masateru TATEISHI , Sho SHIMIZUKAWA , Hiroki KOKETSU
Abstract: A first sensor panel, a second sensor panel, a first circuit unit, and a second circuit unit are accommodated in a conductive housing of an electronic cassette. Of circuit substrates included in the first and second circuit units, a control substrate having a control circuit for controlling the operation of each of the first and second sensor panels is fixed to an inner surface of the housing through a metal spacer. The first and second sensor panels are attached to a front surface of a base. The base is fixed to the inner surface of the housing through a resin adhesive.
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公开(公告)号：US20190277979A1
公开(公告)日：2019-09-12
申请号：US16292653
申请日：2019-03-05
Applicant: FUJIFILM Corporation
Inventor： Sho SHIMIZUKAWA , Hiroki KOKETSU , Koji TANINAI
Abstract: A first power supply unit supplies power to a first sensor panel and a first circuit unit. A second power supply unit supplies power to a second sensor panel and a second circuit unit. A synchronizing signal supply unit of a control unit supplies a synchronizing signal for synchronizing the operations of a switching power supply of the first power supply unit and a switching power supply of the second power supply unit to the switching power supply of the first power supply unit and the switching power supply of the second power supply unit. Since the operations of the first and second power supply units are the same in each imaging operation, it is possible to ensure the reproducibility of an X-ray image.
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公开(公告)号：US20180368789A1
公开(公告)日：2018-12-27
申请号：US16058657
申请日：2018-08-08
Applicant: FUJIFILM Corporation
Inventor： Sho SHIMIZUKAWA , Makoto KITADA , Jun ENOMOTO
IPC: A61B6/00
Abstract: An electronic cassette comprises a main battery which is detachably attached to a battery loading unit, and a sub-battery which supplies electricity to a bias power circuit and so on in substitution for the main battery. A power source selector changes the power source to the sub-battery from the main battery when it is judged that a replacement operation of the main battery is started. Since supply of the electricity to the bias power circuit is continued, and the bias voltage continues being applied to a photoelectric converter without a break, there is no need to perform a photoelectric conversion stabilizing process and an offset correction image detecting process after turning on of the main power. Therefore, a start-up time TR2 is largely shortened from a start-up time TR1.
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公开(公告)号：US20160089092A1
公开(公告)日：2016-03-31
申请号：US14867859
申请日：2015-09-28
Applicant: FUJIFILM CORPORATION
Inventor： Sho SHIMIZUKAWA , Makoto KITADA , Jun ENOMOTO
IPC: A61B6/00
CPC classification number: A61B6/4283 , A61B6/4208 , A61B6/4233 , A61B6/54 , A61B6/56
Abstract: An electronic cassette comprises a main battery which is detachably attached to a battery loading unit, and a sub-battery which supplies electricity to a bias power circuit and so on in substitution for the main battery. A power source selector changes the power source to the sub-battery from the main battery when it is judged that a replacement operation of the main battery is started. Since supply of the electricity to the bias power circuit is continued, and the bias voltage continues being applied to a photoelectric converter without a break, there is no need to perform a photoelectric conversion stabilizing process and an offset correction image detecting process after turning on of the main power. Therefore, a start-up time TR2 is largely shortened from a start-up time TR1.
Abstract translation: 电子盒包括可拆卸地连接到电池装载单元的主电池和向偏置电源电路等供电以代替主电池的子电池。 当判断主电池的更换操作开始时，电源选择器将电源从主电池更换为副电池。 由于继续向偏置电源电路供电，并且偏置电压继续施加到光电转换器而不中断，所以不需要在接通之后执行光电转换稳定处理和偏移校正图像检测处理 主力。 因此，启动时间TR2从起动时间TR1大大缩短。
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