公开(公告)号：US20230015140A1

公开(公告)日：2023-01-19

申请号：US17807859

申请日：2022-06-20

Applicant: FUJIFILM CORPORATION

Inventor： Hisatsugu Horiuchi ,  Sho Shimizukawa ,  Munetaka Kato ,  Tatsuya Taneichi ,  Naoyuki Nishino

IPC: A61B6/00 ,  A61B6/03 ,  G01N23/046

Abstract: A radiation detector includes a support table in which an attachment surface having an arc surface shape is formed, a sensor panel which has a rectangular plate shape and in which pixels that include TFTs and detect radiation are two-dimensionally arranged, a circuit board, a flexible cable, and a reduction structure. The sensor panel is attached to the attachment surface while being curved following the arc surface shape. The flexible cables connect a curved side of the sensor panel and a reading circuit board and are arranged along the curved side. The flexible cable is bent to dispose the reading circuit board at an angle of 90° with respect to the sensor panel. The reduction structure reduces a bias of a stretching force applied to the flexible cable caused by the curved side.

公开(公告)号：US12111430B2

公开(公告)日：2024-10-08

申请号：US17807859

申请日：2022-06-20

Applicant: FUJIFILM CORPORATION

Inventor： Hisatsugu Horiuchi ,  Sho Shimizukawa ,  Munetaka Kato ,  Tatsuya Taneichi ,  Naoyuki Nishino

IPC: G01T1/24 ,  A61B6/00 ,  A61B6/03 ,  A61B6/40 ,  G01N23/046 ,  G01T1/20

CPC classification number: G01T1/244 ,  G01T1/24 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/4435 ,  G01N23/046 ,  G01N2223/419 ,  G01T1/2018 ,  G01T1/20188

Abstract: A radiation detector includes a support table in which an attachment surface having an arc surface shape is formed, a sensor panel which has a rectangular plate shape and in which pixels that include TFTs and detect radiation are two-dimensionally arranged, a circuit board, a flexible cable, and a reduction structure. The sensor panel is attached to the attachment surface while being curved following the arc surface shape. The flexible cables connect a curved side of the sensor panel and a reading circuit board and are arranged along the curved side. The flexible cable is bent to dispose the reading circuit board at an angle of 90° with respect to the sensor panel. The reduction structure reduces a bias of a stretching force applied to the flexible cable caused by the curved side.

公开(公告)号：US11382579B2

公开(公告)日：2022-07-12

申请号：US16568790

申请日：2019-09-12

Applicant: FUJIFILM Corporation

Inventor： Sho Shimizukawa

IPC: A61B6/00

Abstract: A radiation detector that generates and outputs image data representing a radiographic image corresponding to emitted radiation, and up and down directions of the radiation detector are set in advance with respect to top and bottom directions of the radiographic image, a detection unit that detects at least one direction of the up or down directions of the radiation detector, and a display unit that is provided in a housing for accommodating the radiation detector and displays direction information representing the at least one direction of the up and down directions of the radiation detector detected by the detection unit are included.

公开(公告)号：US12186117B2

公开(公告)日：2025-01-07

申请号：US18045821

申请日：2022-10-11

Applicant: FUJIFILM CORPORATION

Inventor： Sho Shimizukawa

IPC: A61B6/42 ,  A61B6/00 ,  G01T1/20 ,  A61B6/46

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.

公开(公告)号：US10709404B2

公开(公告)日：2020-07-14

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 ,  A61B5/00

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.

公开(公告)号：US10881366B2

公开(公告)日：2021-01-05

申请号：US16292699

申请日：2019-03-05

Applicant: FUJIFILM Corporation

Inventor： Koji Taninai ,  Masateru Tateishi ,  Sho Shimizukawa ,  Hiroki Koketsu

IPC: A61B6/00 ,  G01T1/20 ,  G01T1/161 ,  G01T7/00

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.

公开(公告)号：US10682105B2

公开(公告)日：2020-06-16

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.

公开(公告)号：US12201460B2

公开(公告)日：2025-01-21

申请号：US17806734

申请日：2022-06-14

Applicant: FUJIFILM CORPORATION

Inventor： Hisatsugu Horiuchi ,  Sho Shimizukawa ,  Masakazu Fukuyo ,  Naoyuki Nishino ,  Takashi Tajima

IPC: A61B6/02 ,  A61B6/00 ,  A61B6/04 ,  A61B6/42

Abstract: A radiation detector has a sensor panel unit which includes two sensor panels and in which end portions of the two sensor panels are arranged to overlap each other in a thickness direction. An image processing unit acquires two projection images from the two sensor panels. A combination unit of the image processing unit performs a process related to image quality on the projection image in a case in which a tomographic image which is a diagnosis image to be used for a doctor's diagnosis is generated and does not perform the process related to image quality on the projection image in a case in which a scout image which is a confirmation image for confirming a reflected state of the subject is generated.

公开(公告)号：US12178622B2

公开(公告)日：2024-12-31

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

IPC: A61B6/03 ,  A61B6/00 ,  A61B6/04 ,  A61B6/42 ,  G06T7/00

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.

公开(公告)号：US10754047B2

公开(公告)日：2020-08-25

申请号：US16292674

申请日：2019-03-05

Applicant: FUJIFILM Corporation

Inventor： Sho Shimizukawa ,  Masateru Tateishi ,  Koji Taninai ,  Kohei Gemma

IPC: G01T1/20 ,  G01T1/208

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.