公开(公告)号：US20240268780A1

公开(公告)日：2024-08-15

申请号：US18632295

申请日：2024-04-11

Applicant: FUJIFILM CORPORATION

Inventor： Yuji IKEDA

IPC: A61B6/00 ,  A61B6/46

CPC classification number: A61B6/542 ,  A61B6/461

Abstract: A control device that controls an irradiation field of radiation with which a radiation detector is irradiated sets a first control amount that is an amount with which the irradiation field in a case where a required irradiation region which is an irradiation region of the radiation required in capturing a radiation image is a maximum region detectable by the radiation detector is extended outside the required irradiation region, to be smaller than a second control amount that is an amount with which the irradiation field in a case where the required irradiation region is inside the maximum region is extended outside the required irradiation region.

公开(公告)号：US20210093269A1

公开(公告)日：2021-04-01

申请号：US17034872

申请日：2020-09-28

Applicant: FUJIFILM Corporation

Inventor： Yuji IKEDA ,  Ryo IMAMURA ,  Shinichi KANO

IPC: A61B6/00

Abstract: The radiography apparatus includes: an irradiation unit having an irradiation opening through which radiation is emitted; an image receiving unit that has an image receiving surface receiving the radiation emitted from the irradiation unit; an arm that has one end at which the irradiation unit is rotatably supported and the other end at which the image receiving unit is supported in a posture in which the irradiation opening and the image receiving surface face each other; a solenoid that locks the rotation of the irradiation unit with respect to the arm in a facing posture in which the irradiation opening and the image receiving surface face each other; and a control unit that permits the moving image capture irradiation in a state in which the rotation of the irradiation unit is locked and prohibits the moving image capture irradiation in a state in which the rotation is unlocked.

公开(公告)号：US20210204891A1

公开(公告)日：2021-07-08

申请号：US17210870

申请日：2021-03-24

Applicant: FUJIFILM Corporation

Inventor： Yuji IKEDA ,  Masahito SAMBUICHI ,  Hisatsugu HORIUCHI ,  Masayoshi MATSUURA ,  Ryo IMAMURA

IPC: A61B6/00

Abstract: A radiography apparatus includes an operation controller that invalidates an operation of a collimator using a first operating unit in a case where a radiation generation unit is present vertically downward relatively to a radiography unit, and validates the operation of the collimator using the first operating unit in a case where the radiation generation unit is present vertically upward relatively to the radiography unit.

公开(公告)号：US20240264209A1

公开(公告)日：2024-08-08

申请号：US18638601

申请日：2024-04-17

Applicant: FUJIFILM CORPORATION

Inventor： Masayoshi MATSUURA ,  Yuji IKEDA

IPC: G01R21/06 ,  H02M3/24

CPC classification number: G01R21/06 ,  H02M3/24

Abstract: A control device includes processor causing converter to output a direct current voltage corresponding to output target power, if the output target power is less than or equal to first threshold value and exceeds second threshold value, fix the direct current voltage to first voltage, fix frequency, and control pulse width such that a tube voltage record value matches the output target tube voltage, if the output target power is less than or equal to second threshold value, fix the direct current voltage to first voltage, fix the pulse width, and control frequency such that the tube voltage record value matches the output target tube voltage, and if the output target power is less than or equal to third threshold value, decrease the direct current voltage to second voltage, and control pulse width and frequency such that the tube voltage record value matches the output target tube voltage.