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公开(公告)号：US11112344B2
公开(公告)日：2021-09-07
申请号：US16807459
申请日：2020-03-03
Applicant: Kioxia Corporation , RION Co., Ltd.
Inventor： Hiroshi Tomita , Hidekazu Hayashi , Eishi Shiobara , Kaoru Kondo , Takuya Tabuchi , Kazuna Bando , Sota Kondo
Abstract: According to one embodiment, a particle measuring method is disclosed. The method includes irradiating a detection liquid with light. The detection liquid contains methyl salicylate. The method further includes converting scattered light from the detection liquid into an electric signal by using photoelectric conversion after irradiating the detection liquid with the light. The method further includes performing a particle measurement on the detection liquid by using the electric signal.
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公开(公告)号：US12265008B2
公开(公告)日：2025-04-01
申请号：US17642940
申请日：2020-12-17
Applicant: RION CO., LTD.
Inventor： Kaoru Kondo , Kazuna Bando , Takuya Tabuchi , Sota Kondo
IPC: G01N15/0227 , G01N21/05 , G01N21/01
Abstract: Provided is a particle measurement device in which irradiation light emitted by a light source is expanded by an expander in a shape satisfying the requirements of a diffractive optical element, converted into parallel light, and made to enter the diffractive optical element. The diffractive optical element shapes the irradiation light entering therein into a flat top beam in which the cross section in the focal position thereof has an elongate rectangle shape. The intensity distribution of light can be made substantially uniform in a detection area formed by the shaped irradiation light.
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公开(公告)号：US11774340B2
公开(公告)日：2023-10-03
申请号：US17276847
申请日：2019-09-30
Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY , RION Co., Ltd. , Kioxia Corporation
Inventor： Haruhisa Kato , Yusuke Matsuura , Ayako Nakamura , Kaoru Kondo , Takuya Tabuchi , Hiroshi Tomita , Hidekazu Hayashi
CPC classification number: G01N15/0227 , G06T7/20 , G06T7/60 , G06T7/80 , G06T2207/10016
Abstract: For an easy calibration using calibration particles, provided is a measuring device to capture images of target objects. An image analyzer acquires multiple images obtained at a predetermined time interval, (a) specifies the mean-square displacement of a bright point of a calibration particle based on the displacement of the bright point of the calibration particle in the multiple images in a calibration mode, and (b) specifies the mean-square displacement of a bright point of the target particle based on the displacement of the bright point of the target particle in the multiple images in a measurement mode. A particle size analyzer (c) derives the particle size of the target particle from the mean-square displacement of the bright point of the target particle based on the mean-square displacement of the bright point of the calibration particle and the particle size of the calibration particle in an analysis mode.
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公开(公告)号：US08958067B2
公开(公告)日：2015-02-17
申请号：US14072331
申请日：2013-11-05
Applicant: Rion Co., Ltd.
Inventor： Masaki Shimmura , Takehiro Imai , Takuya Tabuchi
CPC classification number: G01N15/0211 , G01N15/1429 , G01N15/1459 , G01N2015/0238 , G01N2015/1486
Abstract: A light scattering particle counter that improves the signal-to-noise ratio by attenuating the high frequency noise component while suppressing the attenuation of the signal component by irradiating a sample fluid with a laser beam La to form a particle detection area, detecting a particle with a multi-channel light detecting element that receives scattered light Ls from a particle passing through the particle detection area, and with low pass filters having time constants τc, τm, τe that are set to depend on beam diameter of the laser beam La and flow velocity of the fluid which flows through each divided area, to count particles in the sample fluid.
Abstract translation: 一种光散射粒子计数器，其通过衰减高频噪声分量来提高信噪比，同时通过用激光束La照射样品流体来抑制信号分量的衰减，以形成粒子检测区域，用 通过从通过粒子检测区域的粒子接收散射光Ls的多通道光检测元件和具有取决于激光束La和流的光束直径的时间常数τc，τm，τe的低通滤波器 流过每个划分区域的流体的速度，以计数样品流体中的颗粒。
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