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1. 发明公开

EP4089393A1 CENTRIFUGAL SEDIMENTATION-TYPE PARTICLE DIAMETER DISTRIBUTION MEASUREMENT DEVICE 审中-实审
公开(公告)号：EP4089393A1
公开(公告)日：2022-11-16
申请号：EP20912815.6
申请日：2020-12-04
申请人： HORIBA, Ltd. , Eppendorf Himac Technologies Co., Ltd.
发明人： YAMAGUCHI, Tetsuji , SHIMIZU, Yuki , ASAKURA, Ken
IPC分类号： G01N15/02 , G01N15/04 , G01N21/01
摘要： The present invention facilitates work of attaching a cover to a cell holding body when exchanging cells or the like. The present invention includes: a cell holding body (31) that holds a measurement cell (2) housing a measurement sample and a dispersion medium; a cover (33) attached to the cell holding body (31) so as to cover the measurement cell (2); a rotation section (32) that rotates the cell holding body (31) and applies centrifugal force to the measurement cell (2); a light source (41) that is provided on one side of a rotation passage region of the measurement cell (2) and irradiates the cell (2) with light; a photodetector (51) that is provided on another side of the rotation passage region of the measurement cell (2) and detects light transmitted through the cell (2); and a particle diameter distribution arithmetic section (11) that acquires a light intensity signal from the photodetector (51) and calculates a particle diameter distribution. The rotation passage region of the cover (33) is located inside an optical path of light passing between the light source (41) and the photodetector (51).

2. 发明公开

EP3869180A1 CENTRIFUGAL SEDIMENTATION-TYPE PARTICLE SIZE DISTRIBUTION MEASUREMENT DEVICE 审中-实审
公开(公告)号：EP3869180A1
公开(公告)日：2021-08-25
申请号：EP19880890.9
申请日：2019-10-29
申请人： HORIBA, Ltd. , Eppendorf Himac Technologies Co., Ltd.
发明人： YAMAGUCHI, Tetsuji , WATANABE, Hitoshi , OSAWA, Hidetaka , ASAKURA, Ken , NEMOTO, Kenichi
IPC分类号： G01N15/04 , G01N21/01 , G01N21/03 , G01N21/49
摘要： A particle size distribution measurement device includes a cell holding body 31 that holds a measurement cell 2 containing a measurement sample and a dispersion medium and a reference cell 6 containing a reference sample and is rotated by a motor 322, and a cell discrimination mechanism 7 that discriminates the cells 2, 6 passing through a predetermined rotation position by using a magnetic force or electrostatic capacitance.

3. 发明公开

EP4129488A1 MEASUREMENT CELL AND CENTRIFUGAL SEDIMENTATION-TYPE PARTICLE-SIZE DISTRIBUTION MEASURING DEVICE USING SAID MEASUREMENT CELL 审中-实审
公开(公告)号：EP4129488A1
公开(公告)日：2023-02-08
申请号：EP21795306.6
申请日：2021-04-27
申请人： HORIBA, Ltd.
发明人： YAMAGUCHI, Tetsuji
IPC分类号： B04B5/02 , G01N15/04 , G01N21/07
摘要： To improve the measurement accuracy of a particle size distribution measuring device that performs a particle size distribution measurement in a line start mode. A measurement cell 2 used in a line start mode of a centrifugal sedimentation type particle size distribution measuring device 100 includes: a cell main body 21 that has an opening 21H provided on one end and stores therein a density gradient liquid W DGS ; and a cell cap 22 that closes the opening 21H of the cell main body 21 and has an internal passage R provided therein for holding a sample liquid Wss. When an application of a centrifugal force is received, the sample liquid Wss is introduced from the internal passage R into the density gradient liquid W DGS .

4. 发明公开

EP3859306A1 CENTRIFUGAL SEDIMENTATION TYPE PARTICLE SIZE DISTRIBUTION MEASURING DEVICE 无效
公开(公告)号：EP3859306A1
公开(公告)日：2021-08-04
申请号：EP19880042.7
申请日：2019-10-29
申请人： HORIBA, Ltd.
发明人： YAMAGUCHI, Tetsuji , AKAMATSU, Takeshi , IGUSHI, Tatsuo
IPC分类号： G01N15/04 , G01N21/01 , G01N21/03 , G01N21/49
摘要： The present claimed invention is to facilitate cleaning work of a cell for a particle size distribution measuring device that measures a particle size distribution by means of a line start method, and comprises a cell 2 that houses a density gradient solution, a cell rotating mechanism 3 that rotates the cell 2 so that a centrifugal force is applied to the cell 2 from a smaller density gradient to a larger density gradient and a sample introducing mechanism 7 that introduces a measurement sample into the cell 2 that is rotated by the cell rotating mechanism 3, and is so configured that the cell 2 is detachable from a main body of the device.

5. 发明公开

EP3203210A1 PARTICLE SIZE DISTRIBUTION MEASURING APPARATUS AND PARTICLE SIZE DISTRIBUTION MEASURING METHOD 有权
标题翻译：粒度分布测量装置和粒度分布测量方法
公开(公告)号：EP3203210A1
公开(公告)日：2017-08-09
申请号：EP17154686.4
申请日：2017-02-03
申请人： Horiba, Ltd.
发明人： YAMAGUCHI, Tetsuji , MORI, Tetsuya
IPC分类号： G01N15/02 , G01N21/53
CPC分类号： G01N15/0211 , G01N21/53 , G01N2015/0222 , G01N2015/025 , G01N2021/4707
摘要： Provided is a dynamic light scattering type particle size distribution measuring apparatus 100 capable of accurately measure the particle sizes of a sample obtained from slurry or the like. The dynamic light scattering type particle size distribution measuring apparatus 100 is configured to include: a filter member 6 that is interposed between any adjacent two of a light source 4, a cell 2, and a photodetector 5 and attenuates light passing therethrough; and an information processing device 8 that measures a particle size distribution multiple times with time and combines particle size distributions obtained at respective times of measurement to thereby calculate the particle size distribution of the whole of portions of the sample introduced at the respective times of measurement. In addition, the filter member 6 is also configured to be changeable to one having a different attenuation level at every time of measurement.
摘要翻译：本发明提供一种动态光散射式粒度分布测定装置100，其能够高精度地测定由浆液等得到的样品的粒径。动态光散射式粒度分布测量装置100被构造成包括：过滤器构件6，该过滤器构件6插入在光源4，单元2和光电检测器5中的任何相邻的两个之间并且衰减穿过其中的光; 和信息处理装置8，该信息处理装置8随时间多次测量粒度分布，并组合在各个测量时间获得的粒度分布，从而计算在各个测量时间引入的样品的整个部分的粒度分布。另外，过滤器构件6也构造成可以在每次测量时改变为具有不同衰减水平的滤波器构件。

6. 发明公开

EP2333516A1 DEVICE FOR MEASURING PHYSICAL PROPERTY OF PARTICLE 无效
标题翻译： VORRICHTUNG ZUR MESSUNG DER PHYSIKALISCHEN EIGENSCHAFTEN VON PARTIKELN
公开(公告)号：EP2333516A1
公开(公告)日：2011-06-15
申请号：EP09816190.4
申请日：2009-09-25
申请人： Horiba, Ltd.
发明人： YAMAGUCHI, Tetsuji , IGUSHI, Tatsuo , KUROZUMI, Takuji
IPC分类号： G01N15/02 , G01N21/21 , G01N21/49 , G01N27/26
CPC分类号： G01N15/0205 , G01N21/21 , G01N21/53 , G01N2015/0294 , G01N2015/03
摘要： Provided is a particle characterization instrument that can ensure measurement accuracy even though light detecting means has a single configuration, and enables the number of optical elements to be decreased as much as possible to suppress cost increase and reduce the number of adjustment places, and the particle characterization instrument has an incident side polarizer 24 and an incident side 1/4 wavelength plate 25 as an illumination optical system mechanism 2 and, as a light receiving optical system mechanism 3, an exit side 1/4 wavelength plate 33 and an exit side polarizer 34 that can be rotated to a plurality of angle positions around a cell 4, wherein light attenuating means 23 that prevents a polarization state from being changed is provided on a light path, and a light attenuation rate by the light attenuating means 23 is controlled such that a detected light intensity at each measurement position falls within a measurement range of light detecting means 31.
摘要翻译：提供了即使光检测装置具有单一结构也能够确保测量精度的粒子表征仪器，并且能够尽可能多地减少光学元件的数量以抑制成本增加并减少调整位置的数量，并且粒子表征仪具有作为照明光学系统机构2的入射侧偏振器24和入射侧1/4波长板25，作为光接收光学系统机构3，出射侧1/4波长板33和出射侧偏振器 34，其可以旋转到围绕单元4的多个角度位置，其中防止偏振状态改变的光衰减装置23设置在光路上，并且由光衰减装置23控制光衰减率每个测量位置处的检测光强度落在光检测装置31的测量范围内。

7. 发明公开

EP4266026A1 PARTICLE SIZE DISTRIBUTION MEASUREMENT DEVICE, PARTICLE SIZE DISTRIBUTION MEASUREMENT METHOD, AND PROGRAM FOR PARTICLE SIZE DISTRIBUTION MEASUREMENT DEVICE 审中-实审
公开(公告)号：EP4266026A1
公开(公告)日：2023-10-25
申请号：EP21906279.1
申请日：2021-11-24
申请人： HORIBA, Ltd.
发明人： YAMAGUCHI, Tetsuji
IPC分类号： G01N15/02 , G01N15/04
摘要： A centrifugal sedimentation-type particle size distribution measurement device that measures the particle size distribution in a measurement sample by rotating a measurement cell that contains the measurement sample and causing particles in the measurement sample to sediment, said particle size distribution measurement device comprising: a light source that irradiates the measurement cell with light; a scattered light detector that detects the intensity of scattered light caused by the particles in the measurement cell; and a particle size distribution calculation unit that measures the particle size distribution in the measurement sample on the basis of the change over time in the scattered light intensity, said change being caused by the particle sedimentation.

8. 发明公开

EP3865847A1 CENTRIFUGAL SEDIMENTATION TYPE PARTICLE SIZE DISTRIBUTION MEASURING DEVICE 无效
公开(公告)号：EP3865847A1
公开(公告)日：2021-08-18
申请号：EP19878449.8
申请日：2019-10-29
申请人： HORIBA, Ltd.
发明人： YAMAGUCHI, Tetsuji , AKAMATSU, Takeshi
IPC分类号： G01N15/04 , G01N21/01 , G01N21/03 , G01N21/49
摘要： An object of the present claimed invention is to improve cell cooling performance, keep a temperature of a dispersion medium constant, and improve measurement accuracy. The particle size distribution measuring device of this invention comprises a cell holding body 31 that holds a cell 2 housing a measurement sample and that is rotated by a motor 322, a case (C) having a housing space (S) for rotatably housing the cell holding body 31, and a cooling mechanism 8 for cooling the cell 2. The cooling mechanism 8 comprises a cooler 81, and a supply channel 82 that supplies a gas that has been cooled by the cooler 81 to the housing space (S).

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