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公开(公告)号：US11197363B2
公开(公告)日：2021-12-07
申请号：US17062021
申请日：2020-10-02
Applicant: FUJIFILM Corporation
Inventor： Kenji Nakamura , Ryosuke Ogura , Keiichiro Takahashi
Abstract: An X-ray tube device incorporates a mono-tank, and includes a gripping portion that is provided to protrude from a main body in a side surface and supports the main body by gripping. In a case where the main body is divided into two portions of a center-of-gravity-side portion including the center of gravity of the main body and a non-center-of-gravity-side portion not including the center of gravity using a plane passing through the center of the main body and an irradiation direction of X-rays, the gripping portion is in the center-of-gravity-side portion, and the gripping portion is not in the non-center-of-gravity-side portion.
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公开(公告)号：US11125892B2
公开(公告)日：2021-09-21
申请号：US16551684
申请日：2019-08-26
Applicant: FUJIFILM Corporation
Inventor： Kenji Nakamura , Kouichi Kitano
Abstract: The present disclosure provides a radiation detection system, a radiation output device, and a radiation detection device. The radiation detection system includes a radiation output device having an output control unit, and a radiation detection device having a recognition unit that recognizes whether radiation has been output from the radiation output device on the basis of a radiation detection signal. The output control unit causes radiation to be output at a first intensity from a time point of the start of outputting of radiation, and then causes the radiation to be output at a second intensity. The first intensity is an intensity higher than the second intensity and satisfying a threshold value condition set in advance in the recognition unit. The recognition unit recognizes that a detection signal of the radiation with the first intensity satisfies the threshold value condition, thereby recognizing the start of outputting of the radiation.
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公开(公告)号：US08983035B2
公开(公告)日：2015-03-17
申请号：US13683428
申请日：2012-11-21
Applicant: FUJIFILM Corporation
Inventor： Kentaro Noma , Kenji Nakamura , Naoto Iwakiri , Kouichi Kitano , Keita Watanabe
Abstract: A flat panel detector has pixels for obtaining image signals and detective pixels for detecting the amount of incident x-rays. A signal processing circuit is of a pipeline-type, wherein first and second buffer memories are connected to the output of an A/D converter. In a dose detecting operation, the signal processing circuit repeats primary cycles alternately with secondary cycles of a shorter length than the primary cycles. In the primary cycle, a dose detection signal based on electric charges from the detective pixels is input in the first buffer memory and, simultaneously, a dummy signal is output from the second buffer memory. In secondary cycle, the dose detection signal is output from the first buffer memory and, simultaneously, a second dummy signal is input in the second buffer memory. On the basis of the dose detection signals, a start-of-radiation detector detects the start of x-ray radiation.
Abstract translation: 平板检测器具有用于获得图像信号的像素和用于检测入射X射线量的检测像素。 信号处理电路是流水线型的，其中第一和第二缓冲存储器连接到A / D转换器的输出端。 在剂量检测操作中，信号处理电路以比主要周期短的次级循环交替重复主循环。 在主循环中，基于来自检测像素的电荷的剂量检测信号被输入到第一缓冲存储器中，同时从第二缓冲存储器输出虚拟信号。 在二次循环中，从第一缓冲存储器输出剂量检测信号，同时在第二缓冲存储器中输入第二伪信号。 基于剂量检测信号，起始辐射检测器检测X射线辐射的开始。
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公开(公告)号：US11202361B2
公开(公告)日：2021-12-14
申请号：US17062057
申请日：2020-10-02
Applicant: FUJIFILM Corporation
Inventor： Kenji Nakamura , Ryosuke Ogura , Keiichiro Takahashi
Abstract: An X-ray tube device includes a main body that incorporates a bulb, which generates X-rays, a collimator that is provided to protrude from the main body in an irradiation direction of the X-rays in a part of a front surface (first surface), which is a surface of the main body, and has an irradiation window for irradiating the X-rays with an adjusted irradiation range, and connectors that are provided for connecting a guard unit for keeping a distance from a test object, between the front surface (first surface) of the main body and a front surface (second surface), which is a surface of the collimator where the irradiation window is provided.
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公开(公告)号：US10340053B2
公开(公告)日：2019-07-02
申请号：US15944804
申请日：2018-04-04
Applicant: FUJIFILM CORPORATION
Inventor： Misaki Kawahara , Koichi Kitano , Kenji Nakamura , Masaru Sato , Masayuki Iwasaka , Takeyasu Kobayashi
Abstract: The radiation-irradiation device includes: a radiation generating unit that generates radiation; a collimator unit that controls an irradiation range to be irradiated with the radiation generated by the radiation generating unit; and an interval ensuring unit that includes a contact member being in contact with a subject to be irradiated with the radiation in a case in which a distance between the radiation generating unit and the subject is shorter than a preset distance, and ensures an interval between the radiation generating unit and the subject. The interval ensuring unit is detachably mounted on the collimator unit and is capable of being mounted at different rotational positions about an axis, which passes through a center of a diaphragm of the collimator unit and extends in the direction of an optical axis of the radiation, as a central axis.
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Patent Agency Ranking
公开(公告)号：US11009610B2
公开(公告)日：2021-05-18
申请号：US16550300
申请日：2019-08-26
Applicant: FUJIFILM Corporation
Inventor： Kenji Nakamura , Kouichi Kitano
Abstract: The present disclosure provides a radiation detection system, a radiation output device, and a radiation detection device. The radiation detection system includes a radiation output device having a radiation generation unit and an output control unit that controls output of radiation, and a radiation detection device having a radiographic image detector that detects radiation output from the radiation output device, and a recognition unit that recognizes whether radiation has been output from the radiation output device on the basis of a radiation detection signal output from the radiographic image detector. The output control unit causes radiation with a preset waveform pattern to be output from a time point of the start of outputting of the radiation, and the recognition unit recognizes the waveform pattern, thereby recognizing the start of outputting of the radiation.
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公开(公告)号：US10987080B2
公开(公告)日：2021-04-27
申请号：US15949092
申请日：2018-04-10
Applicant: FUJIFILM CORPORATION
Inventor： Kenji Nakamura
Abstract: A radiation irradiation detection system includes a radiation generation apparatus that includes a radiation generation unit, an emission control unit controlling emission of the radiation, and an exposure switch unit receiving a radiation irradiation instruction and a radiation stoppage instruction, and a radiation detection apparatus that includes a radiation detector detecting the radiation transmitted through a subject, and a detection control unit controlling the radiation detector, and the emission control unit starts emission of the radiation in a case where the emission permitting signal output from the detection control unit is received while the exposure switch unit is receiving the radiation irradiation instruction, continuously performs emission of the radiation regardless of a reception state of the emission permitting signal in a preset emission period after the radiation starts to be emitted, and stops emission of the radiation in a case where the instruction reception unit receives the radiation stoppage instruction.
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公开(公告)号：US10274618B2
公开(公告)日：2019-04-30
申请号：US15792775
申请日：2017-10-25
Applicant: FUJIFILM CORPORATION
Inventor： Kenji Nakamura
Abstract: A radiography apparatus includes: a radiation detector that includes a plurality of pixels, each of which includes a thin film transistor and which are two-dimensionally arranged, and data lines through which charge accumulated in the connected pixels is transmitted as an electric signal; and a first sample-and-hold unit and a second sample-and-hold unit that sample and hold the electric signal transmitted through the data line. In a case in which the charge accumulated in the pixel is read out, the radiography apparatus performs control such that the thin film transistor is turned off and the first sample-and-hold unit samples and holds a first electric signal transmitted through the data line; and the thin film transistor is turned on and the second sample-and-hold unit samples and holds a second electric signal transmitted through the data line.
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公开(公告)号：US10939888B2
公开(公告)日：2021-03-09
申请号：US16550305
申请日：2019-08-26
Applicant: FUJIFILM Corporation
Inventor： Masaru Sato , Kenji Nakamura , Misaki Kawahara , Fumito Nariyuki , Ryosuke Ogura , Tomoaki Nakashima
Abstract: A radiation irradiating apparatus includes a radiation generator that generates radiation and a switch that controls emission of the radiation from the radiation generator. The radiation generator and the switch are constituted by separate housings. The radiation generator and the switch are attachable and detachable to and from each other via a surface of a portion of each of the housings thereof.
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公开(公告)号：US20180301235A1
公开(公告)日：2018-10-18
申请号：US15944804
申请日：2018-04-04
Applicant: FUJIFILM CORPORATION
Inventor： Misaki Kawahara , Koichi Kitano , Kenji Nakamura , Masaru Sato , Masayuki Iwasaka , Takeyasu Kobayashi
CPC classification number: G21K1/046 , A61B6/06 , A61B6/08 , A61B6/107 , A61B6/40 , A61B6/4405 , A61B6/4411 , A61B6/467 , A61B6/542 , A61B6/588 , G21K1/02
Abstract: The radiation-irradiation device includes: a radiation generating unit that generates radiation; a collimator unit that controls an irradiation range to be irradiated with the radiation generated by the radiation generating unit; and an interval ensuring unit that includes a contact member being in contact with a subject to be irradiated with the radiation in a case in which a distance between the radiation generating unit and the subject is shorter than a preset distance, and ensures an interval between the radiation generating unit and the subject. The interval ensuring unit is detachably mounted on the collimator unit and is capable of being mounted at different rotational positions about an axis, which passes through a center of a diaphragm of the collimator unit and extends in the direction of an optical axis of the radiation, as a central axis.
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