公开(公告)号：US11206366B2

公开(公告)日：2021-12-21

申请号：US16726958

申请日：2019-12-26

Applicant: FUJIFILM Corporation

Inventor： Naoto Iwakiri ,  Kouichi Kitano ,  Syo Shimizukawa

IPC: A61B6/00 ,  G01T1/24 ,  G01T7/00 ,  H04N5/32

Abstract: In a case where power P_C supplied to CA during the image reading operation is normal power PN_C, in an AED operation of detecting irradiation start of X-rays, a control unit of an electronic cassette causes at least one of non-detection CAs other than a detection CA that is the charge amplifier connected to a detection channel of a detection pixel for irradiation start detection, among the plurality of CAs connected to a MUX to be in a power saving state in which the supply power P_C is lower than the normal power PN_C during the image reading operation.

公开(公告)号：US11191499B2

公开(公告)日：2021-12-07

申请号：US16354744

申请日：2019-03-15

Applicant: FUJIFILM Corporation

Inventor： Naoto Iwakiri ,  Keiichiro Sato ,  Haruyasu Nakatsugawa

IPC: A61B6/00 ,  H01L27/146 ,  G06T7/00

Abstract: A radiographic imaging apparatus includes a sensor substrate including a flexible base material, and an active area which is provided on a first surface of the base material and in which a plurality of pixels, which accumulate electrical charges generated in accordance with light converted from radiation, are formed; a conversion layer that is provided on the first surface side in the sensor substrate to convert radiation into the light; and a grid that is disposed on a second surface side opposite to the first surface of the base material and has a removal portion that has a mesh-like radiation absorbing member provided between a plurality of partitions in units of a predetermined number of pixels to remove scattered radiation according to the radiation.

公开(公告)号：US11520057B2

公开(公告)日：2022-12-06

申请号：US17029977

申请日：2020-09-23

Applicant: FUJIFILM Corporation

Inventor： Naoto Iwakiri

IPC: G01T1/17 ,  G01T1/29 ,  G01T1/20

Abstract: A radiation image capturing apparatus includes a sensor substrate including a flexible base material and plural pixels that accumulate charges generated in accordance with radiation, a flexible first cable including one ends electrically connected to a connection region disposed at a predetermined side of the sensor substrate, a first circuit substrate electrically connected to the other end of the first cable and in which a first component used for processing a digital signal in a circuit unit driven in a case of reading out the charges in the plural pixels is mounted, a flexible second cable including one end electrically connected to a connection region disposed at a side different from the predetermined side, and a second circuit substrate electrically connected to the other end of the second cable and in which a second component used for processing an analog signal in the circuit unit is mounted.

公开(公告)号：US11313979B2

公开(公告)日：2022-04-26

申请号：US16727826

申请日：2019-12-26

Applicant: FUJIFILM Corporation

Inventor： Syo Shimizukawa ,  Naoto Iwakiri ,  Kouichi Kitano

IPC: G01T1/17 ,  A61B6/00 ,  H04N5/32 ,  G01N23/04

Abstract: A control unit of an electronic cassette switches the power supply state of a plurality of blocks BL which share a signal processing of a signal processing circuit between an operating state and a non-operating state. The control unit switches the block BL from the non-operating state to the operating state before a predetermined time TW necessary for stable operation of the block BL from a timing when the reading of charge starts in the block BL.

公开(公告)号：US09784853B2

公开(公告)日：2017-10-10

申请号：US14875074

申请日：2015-10-05

Applicant: FUJIFILM Corporation

Inventor： Naoyuki Nishino ,  Naoto Iwakiri ,  Haruyasu Nakatsugawa ,  Keiichiro Sato ,  Yasunori Ohta

IPC: G01T1/22 ,  G01T1/20 ,  G01T1/202 ,  A61B6/00

CPC classification number: G01T1/2012 ,  A61B6/4216 ,  A61B6/4283 ,  G01T1/2018 ,  G01T1/202

Abstract: A radiation detector and a radiological image radiographing apparatus capable of improving the quality of an obtained radiological image without causing an additional cost are provided. A first scintillator configured to include columnar crystals generating first light corresponding to a radiation emitted through a TFT substrate is laminated on the other surface of the TFT substrate that has a first photoelectric conversion element, which has one surface from which a radiation is emitted and the other surface from which at least one of the first light and the second light is emitted and which generates electric charges corresponding to the light, and a first switching element. A second scintillator which generates second light corresponding to a radiation emitted through the first scintillator and has different energy characteristics of absorbed radiations from the first scintillator is laminated on a surface of the first scintillator not facing the TFT substrate.

公开(公告)号：US09753159B2

公开(公告)日：2017-09-05

申请号：US14264285

申请日：2014-04-29

Applicant: FUJIFILM Corporation

Inventor： Naoto Iwakiri ,  Kouichi Kitano

IPC: G01T1/24 ,  G01T1/20 ,  H04N5/32 ,  H01L27/146 ,  H01L27/148 ,  H03K21/38 ,  A61B6/00 ,  G01T1/208 ,  H04N5/374 ,  G01T1/17 ,  H04N5/378 ,  H04N5/3745 ,  H04N5/343

CPC classification number: G01T1/247 ,  A61B6/42 ,  A61B6/4233 ,  A61B6/4283 ,  A61B6/5258 ,  A61B6/54 ,  G01T1/17 ,  G01T1/208 ,  H01L27/146 ,  H01L27/14601 ,  H01L27/14609 ,  H01L27/14658 ,  H01L27/14676 ,  H01L27/14806 ,  H03K21/38 ,  H04N5/32 ,  H04N5/343 ,  H04N5/3741 ,  H04N5/37457 ,  H04N5/378

Abstract: A radiographic imaging control device is provided with a radiation detector, amplifiers and a controller. A plurality of pixels are arrayed in the radiation detector, each pixel including a sensor portion that generates charges in accordance with irradiated radiation and a switching element that is for reading out the charges generated at the sensor portion. Each amplifier is provided in correspondence with a respective pixel of the radiation detector, is equipped with a resetter that resets charges remaining at an integration capacitor, and amplifies an electronic signal according to the charges read out by the switching element from the corresponding pixel by a pre-specified amplification factor. In accordance with pre-specified conditions, the controller controls so as to alter a bias current supplied to the amplifiers in at least some periods of resetting by the resetter.

公开(公告)号：US09322931B2

公开(公告)日：2016-04-26

申请号：US14107972

申请日：2013-12-16

Applicant: FUJIFILM Corporation

Inventor： Yasunori Ohta ,  Haruyasu Nakatsugawa ,  Naoyuki Nishino ,  Naoto Iwakiri

IPC: G01J1/42 ,  G01T1/17 ,  G01T1/20 ,  A61B6/02 ,  A61B6/00 ,  A61B6/04

CPC classification number: G01T1/17 ,  A61B6/025 ,  A61B6/0407 ,  A61B6/4233 ,  A61B6/4283 ,  A61B6/4452 ,  G01T1/2014

Abstract: This radiation imaging system has a radiation source, a case, and a radiation detection device which is housed in the case, and is equipped with a radiation detector having a conversion unit that converts radiation from the radiation source, which has passed through at least a subject, to radiation image information, wherein a prediction is made as to whether the afterimage phenomenon has occurred in the conversion unit, and if it is predicted that the phenomenon has occurred, at least the conversion unit is moved.

Abstract translation: 这种放射线成像系统具有辐射源，外壳和辐射检测装置，其被容纳在壳体中，并且配备有具有转换单元的辐射检测器，该转换单元转换来自辐射源的辐射，该辐射源已经通过至少一个 对辐射图像信息进行预测，其中对转换单元中是否发生余像现象进行预测，并且如果预测出现现象，至少转换单元被移动。

公开(公告)号：US08796623B2

公开(公告)日：2014-08-05

申请号：US13661419

申请日：2012-10-26

Applicant: FUJIFILM Corporation

Inventor： Haruyasu Nakatsugawa ,  Naoyuki Nishino ,  Yasunori Ohta ,  Naoto Iwakiri

IPC: G01J1/00 ,  G01T1/24 ,  G01T1/29

CPC classification number: G01T1/20 ,  A61B6/4283 ,  A61B6/4423 ,  A61B6/4488 ,  A61B6/54 ,  A61B6/563 ,  G03B42/04

Abstract: Disclosed is a radiation imaging device configuring a radiation imaging system. Specifically disclosed is a radiation imaging device wherein external force action mechanisms are capable of applying external force to the peripheral sections of a radiation conversion panel, or applying the external force while being laminated on the radiation conversion panel, or pressing the radiation conversion panel against the inner wall of a panel containing unit, which contains the radiation conversion panel, at least in imaging when radiation is applied.

Abstract translation: 公开了构成放射线成像系统的放射线摄像装置。 具体公开了一种辐射成像装置，其中外力作用机构能够对辐射转换面板的周边部分施加外力，或者在层压在辐射转换面板上时施加外力，或者将辐射转换面板压在辐射转换面板上 至少在施加辐射成像时，包含辐射转换面板的面板容纳单元的内壁。

公开(公告)号：US11609347B2

公开(公告)日：2023-03-21

申请号：US17018225

申请日：2020-09-11

Applicant: FUJIFILM Corporation

Inventor： Naoto Iwakiri ,  Munetaka Kato ,  Haruyasu Nakatsugawa ,  Keiichi Akamatsu

IPC: G01T1/20 ,  G01T1/202 ,  G01T1/24

Abstract: A radiation detector includes a flexible substrate, plural pixels provided on the substrate and each including a photoelectric conversion element, a scintillator stacked on the substrate, and a bending suppression member configured to suppress bending of the substrate. The bending suppression member has a rigidity that satisfies R≥X2/2ZL wherein X is a pixel size, ZL is a critical deformation amount of the pixel through bending of the substrate, and R is a radius of curvature of bending occurring in the substrate due to the weight of the scintillator.

公开(公告)号：US11415715B2

公开(公告)日：2022-08-16

申请号：US17029697

申请日：2020-09-23

Applicant: FUJIFILM Corporation

Inventor： Naoto Iwakiri

IPC: G01T1/29 ,  G01T1/17 ,  G01T1/20

Abstract: A radiation image capturing apparatus including a sensor substrate including a flexible base material and a plurality of pixels accumulating electric charges generated in accordance with radiation, a flexible first cable of which one end is electrically connected to the sensor substrate, and a flexible first circuit substrate that is electrically connected to the other end of the first cable and in which a first circuit unit driven in a case of reading out the electric charges accumulated in the plurality of pixels is mounted is provided.