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公开(公告)号：US20230173807A1
公开(公告)日：2023-06-08
申请号：US17926198
申请日：2021-05-06
Applicant: HITACHI, LTD.
Inventor： Yuusuke KOURAI , Mutsumi SUZUKI , Hirohisa MIZOTA , Masanori KITAOKA , Kota SASAKI
CPC classification number: B41J2/14008 , B05B17/0607 , B41J2/015
Abstract: Provided is a liquid droplet generation method capable of generating liquid droplets having a diameter of 100 µm or more. The liquid droplet generation method for generating liquid droplets from a liquid layer 20 by using a plurality of transducers 18, the method including irradiating the liquid layer 20 with a plurality of ultrasonic waves from the plurality of transducers 18 to scatter primary liquid droplets 21A and 21B from the liquid layer 20, and causing the primary liquid droplets 21A and 21B being scattered to aggregate and grow into a secondary liquid droplet 22A.
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公开(公告)号：US20240110146A1
公开(公告)日：2024-04-04
申请号：US18370981
申请日：2023-09-21
Applicant: Hitachi, Ltd.
Inventor： Kota SASAKI , Yuusuke KOURAI , Mutsumi SUZUKI
CPC classification number: C12M35/04 , C12M41/36 , C12N13/00 , C12N2527/00
Abstract: A cell peeling device includes a vibrator that emits an ultrasonic beam onto a cell aggregate across a container wall, a movement mechanism that moves the vibrator to shift a position thereof relative to a culture container, and a control unit that controls beam power output of the ultrasonic beam and the position of the vibrator, in which the control unit carries out mode switching of switching the beam power output of the ultrasonic beam between a first mode in which the cell aggregate is cut and a second mode in which a peeling portion of the cell aggregate, the peeling portion being formed in the first mode, is peeled from the container wall, and, in the first mode, makes a beam size of the beam power output smaller than a beam size in the second mode while makes an intensity of the beam power output larger than an intensity in the second mode.
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公开(公告)号：US20230056147A1
公开(公告)日：2023-02-23
申请号：US17797143
申请日：2020-08-25
Applicant: HITACHI, LTD.
Inventor： Kota SASAKI , Kouichi OKADA , Yuichiro UENO
IPC: A61N5/10
Abstract: An object of the present invention is to increase sensitivity and position resolution of measurement of an arrival position of a charged particle beam irradiated during treatment. A beam monitoring system includes: a gamma ray detector that detects gamma rays generated by interaction between a charged particle beam and an irradiation target; a shield that is disposed between the gamma ray detector and an irradiation axis of the beam and has a plurality of slits; and a calculation unit that analyzes a detection result of the gamma ray detector and reconfigures a count distribution of the detected gamma rays into a distribution of the beam irradiation axis based on a geometric arrangement of the shield, the detector, and the irradiation axis of the beam. The calculation unit obtains the arrival position of the particle beam from the reconfigured distribution.
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4.发明申请公开(公告)号：US20200069971A1
公开(公告)日：2020-03-05
申请号：US16516386
申请日：2019-07-19
Applicant: Hitachi, Ltd.
Inventor： Kota SASAKI , Hirohisa MIZOTA , Yuusuke KOURAI
Abstract: To provide a position measurement device capable of measuring a target position with high accuracy according to an ultrasonic image during treatment, a treatment system including the device, and a position measurement method. A first image is constructed according to an ultrasonic waveform acquired by an ultrasonic sensor 104C, a three-dimensional image acquired in advance and the first image are collated on the basis of sensor position information acquired by a sensor position measurement unit 105 to calculate sound velocities of each body tissue of a patient 100, a second image is constructed according to the ultrasonic waveform acquired by the ultrasonic sensor 104C using the calculated sound velocities of each body tissue of the patient 100, and a target tissue position is calculated according to the second image.
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