公开(公告)号：US20220390419A1

公开(公告)日：2022-12-08

申请号：US17782656

申请日：2019-12-12

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke NAGAI ,  Yosuke IWATA

IPC: G01N30/60 ,  G01N30/86

Abstract: A first liquid raw material and a second liquid raw material are reacted with each other by a reactor of a reaction device, so that a reaction product is produced. The reaction product is analyzed by an analyzer. In the controller, the reference value is acquired by the reference value acquirer from the chromatogram obtained from the result of the analysis by the analyzer. An upper limit value and a lower limit value with respect to the reference value are set by an allowable range setter. At least one of a residence time of the first liquid raw material, a residence time of the second liquid raw material, a reaction temperature, and a reaction pressure in the reactor is dynamically changed as a control target by a reaction controller such that the reference value falls between the upper limit value and the lower limit value.

公开(公告)号：US20220299485A1

公开(公告)日：2022-09-22

申请号：US17669909

申请日：2022-02-11

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke NAGAI ,  Yohei TOJI

IPC: G01N30/14 ,  G01N30/16 ,  G01N30/76 ,  G01N30/32

Abstract: A preparative liquid chromatograph includes a liquid feeding pump (2) that feeds a mobile phase, an injector (4) that injects a sample into the mobile phase at a downstream of the liquid feeding pump (2), a separation column (6) for separating components in the sample injected into the mobile phase by the injector (4) at a downstream of the injector (4), and an eluate fractionator (8) configured to divide a flow of the eluate from the separation column (6) into a flow of a minute flow rate and another flow at a downstream of the separation column (6) and to extract at least a part of an eluate that forms the flow of a minute flow rate into an fractionation container (22).

公开(公告)号：US20160234904A1

公开(公告)日：2016-08-11

申请号：US15015810

申请日：2016-02-04

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke NAGAI ,  Keisuke OGAWA ,  Masato WATANABE ,  Kumiko JINGU ,  Masanori FUJIWARA ,  Tomoyuki YAMAZAKI

IPC: H05B33/08 ,  G01N21/33

CPC classification number: H05B33/0851 ,  G01N21/33 ,  G01N2201/0621 ,  G01N2201/0638 ,  G01N2201/0692 ,  G01N2201/0695

Abstract: Provided is an optical analyzer for performing a feedback control on the amount of light emitted from an LED as a light source, in which the configuration of an optical system is made simple and the degree of freedom in optical system arrangement is secured. An optical member 2 for focusing most of light while discharging part of the light as unfocused light is provided on an optical path from a light casting unit 1 to a sample cell 3. The optical member 2 can be achieved with a simple configuration, for example, two ball lenses spaced apart by a predetermined distance from each other. The light focused by the optical member 2 is cast as measurement light into the sample cell 3. Meanwhile, a second photodetector 5 is arranged at a position where the unfocused light reaches. The second photodetector 5 generates a detection signal in accordance with the amount of light that has entered the second photodetector 5 as monitored light, and a drive current to be supplied to an LED is controlled through a drive current controlling unit 6 and a current source 7 such that the amount of light is maintained at a fixed level.

Abstract translation: 提供了一种用于对从光源发出的光量进行反馈控制的光学分析器，其中光学系统的结构简单且光学系统布置的自由度得到确保。 在从光铸造单元1到样品池3的光路上设置有用于聚焦大部分光的光学构件2，同时以未聚焦的光排出部分光。光学构件2可以以简单的构造实现，例如 ，彼此隔开预定距离的两个球透镜。 将由光学构件2聚焦的光作为测量光铸造到样品池3中。同时，第二光电检测器5布置在未聚焦的光到达的位置。 第二光电检测器5根据作为监视光进入第二光电检测器5的光量产生检测信号，通过驱动电流控制单元6和电流源7控制提供给LED的驱动电流 使得光量保持在固定的水平。

公开(公告)号：US20240385148A1

公开(公告)日：2024-11-21

申请号：US18624658

申请日：2024-04-02

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke NAGAI ,  Katsumasa SAKAMOTO ,  Takuya YOSHIOKA ,  Yosuke IWATA

IPC: G01N30/14 ,  G01N30/02 ,  G01N30/20

Abstract: Included are a sample supplier (2) configured to generate a sample fluid containing gas and liquid by causing two or more kinds of fluids to react with each other and to supply the sample fluid, a gas-liquid separator (4) provided downstream of the sample supplier (2), the gas-liquid separator (4) having a separation space (24) for separating gas and liquid in the sample fluid supplied from the sample supplier (2) from each other, a gas outlet (30) for releasing the gas in the sample fluid from the separation space (24), and a liquid outlet (28) for taking out the liquid in the sample fluid from the separation space (24), a liquid channel (32;42) fluidly connected to the liquid outlet (28) of the gas-liquid separator (4), a back pressure regulator (8) provided on the liquid channel (32; 34), an analysis channel (38; 40) constituting a liquid chromatograph for analyzing the liquid separated from the gas in the gas-liquid separator (4), and a sampling part (6) configured to take out the liquid flowing through the liquid channel (32; 42) and introduce the liquid into the analysis channel (40) between the liquid outlet (28) and the back pressure regulator (8) on the liquid channel (32; 42).

公开(公告)号：US20220376460A1

公开(公告)日：2022-11-24

申请号：US17879826

申请日：2022-08-03

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke NAGAI ,  Kotaro KAJIKAWA

IPC: H01S3/16 ,  G01N15/06 ,  G01N21/05 ,  G01N21/64 ,  H01S5/36 ,  H01S3/213 ,  H01S3/23 ,  H01S3/108 ,  H01S3/30

Abstract: A tube preparation step of preparing a resin tube that has a tube wall impregnable with a solution including a fine substance and is made of a light-transmitting resin material, a solution preparation step of preparing a solution that includes a fine fluorescent substance that emits fluorescence or a fine scattering substance that scatters light as an oscillation material and an impregnation step of causing the resin tube to be immersed in the solution and causing the tube wall of the resin tube to be impregnated with the oscillation material, are included.

公开(公告)号：US20220026345A1

公开(公告)日：2022-01-27

申请号：US17280414

申请日：2019-08-13

Applicant: Tomoegawa Co., Ltd. ,  SHIMADZU CORPORATION

Inventor： Minoru TSUCHIDA ,  Akiyasu OYAIZU ,  Yusuke NAGAI ,  Katsuya OKUMURA

IPC: G01N21/09 ,  G01N30/74 ,  G01N21/03 ,  B29C70/42 ,  B29C39/10 ,  F16J15/08

Abstract: Provided is a seal material having high rigidity without deformation or breakage, excellent corrosion resistance to fluid, and low solubility when used under high sealing force, and to provide a flow cell, a detector, and an analyzer in which there is no fluid leakage, contamination of the seal material components is prevented, and the replacement frequency is low. Provided are a seal material for an analyzer, including a resin and at least one layer of fiber sheet embedded in the resin, wherein the at least one layer of fiber sheet is embedded between and in substantially parallel to two seal surfaces: a first seal surface, which is one resin surface of the seal material; and a second seal surface, which is the other resin surface substantially parallel to the former one, and a flow cell, a detector, and an analyzer using the seal material.