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公开(公告)号：US20220334089A1
公开(公告)日：2022-10-20
申请号：US17636047
申请日：2020-02-28
Applicant: SHIMADZU CORPORATION
Inventor： Yusuke NAGAI , Yosuke IWATA
IPC: G01N30/20
Abstract: A sample injection device is used to inject a sample into a chromatograph and includes a flow vial, a sampling needle and one or more than one sample dissolution devices. A sample is supplied to the flow vial. The sample that has been supplied to the flow vial is collected by the sampling needle and injected into the chromatograph. At least one of ultrasonic waves, an electric field and a magnetic field is used, so that dissolution of a sample to be injected into the chromatograph is promoted by one or more than one sample dissolution devices.
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公开(公告)号：US20200182837A1
公开(公告)日：2020-06-11
申请号：US16210260
申请日：2018-12-05
Applicant: Shimadzu Corporation
Inventor： Yosuke IWATA , Koji NUMATA , Kei SHIMOJIMA
Abstract: To diminish complication and difficulty in attachment and detachment of analytical columns to and from a column oven. The column oven includes, in a column housing part that includes a space for housing the plurality of analytical columns, a column rack that holds the plurality of analytical columns, an inlet switching valve, and an outlet connection portion. At least either the inlet switching valve or the outlet connection portion is formed integrally with the column rack and capable of being attached to and detached from the column housing part together with the column rack.
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公开(公告)号：US20230314390A1
公开(公告)日：2023-10-05
申请号：US18105398
申请日：2023-02-03
Applicant: SHIMADZU CORPORATION
Inventor： Yusuke NAGAI , Yosuke IWATA
CPC classification number: G01N30/8665 , G01N30/14 , G01N30/38 , B01D15/08 , G01N2030/385 , G01N2030/027
Abstract: A monitoring analysis device includes an acquirer that sequentially acquires reaction products produced by a reactor, an analyzer that sequentially analyzes the reaction products acquired by the acquirer, a pre-processor that performs a pre-process to be performed before an analysis of the reaction products by the analyzer, and a controller that controls the pre-processor such that the pre-process for a second analysis to be performed subsequently to a first analysis is performed during the first analysis by the analyzer.
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公开(公告)号：US20220074960A1
公开(公告)日：2022-03-10
申请号：US17285575
申请日：2019-07-10
Applicant: Shimadzu Corporation
Inventor： Kuniaki KANAMARU , Akiko BAMBA , Shunsuke ATSUMI , Hiroaki MURAKAMI , Yosuke IWATA
Abstract: A sample pretreatment device of an aspect of the present invention includes a conveyance mechanism (22) including a Z-axis guide (223) that linearly moves in two axes of an X axis and a Y axis and expands/contracts in a Z-axis direction on a table (21) where a unit that performs each step of pretreatment is arranged. The Z-axis guide (22) is integrally provided with a liquid handler (224) and a grip handler (225) oriented in opposite directions to each other. A side wall of a housing (20) on the autosampler side is provided with a sample conveyance opening (201). When pretreatment of a sample ends, the Z-axis guide (223) is moved to a position close to the opening (201) in a state where a gripper (228) grips a pretreated plate. An arm (227) enters a housing of the autosampler through the opening (201) and an opening formed in the autosampler, and sets a plate at a predetermined position. Thus, the sample pretreatment device can eliminate the labor of the worker setting a pretreated sample in the analysis device.
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公开(公告)号：US20190184319A1
公开(公告)日：2019-06-20
申请号：US16323014
申请日：2017-06-30
Applicant: Shimadzu Corporation
Inventor： Katsuhiro TANAKA , Yosuke IWATA
Abstract: A fluid processing system includes: a fluid processing section that performs a treatment of a sample while flowing fluid through a channel, the fluid after passage through the fluid processing section including gas and liquid; a gas-liquid separation section that is connected to an outlet side of the back pressure valve, that includes a gas-liquid separation pipe made of material letting the gas through and not letting the liquid through, and that discharges a gas phase in the fluid flowing through the gas-liquid separation pipe to an outside of the gas-liquid separation pipe; and a liquid phase collecting section that is provided on a downstream of the gas-liquid separation section and that recovers the liquid after passage through the gas-liquid separation section.
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Patent Agency Ranking
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
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).
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公开(公告)号：US20180231510A1
公开(公告)日：2018-08-16
申请号：US15751500
申请日：2015-08-24
Applicant: Shimadzu Corporation
Inventor： Tomoyuki YAMAZAKI , Yosuke IWATA
Abstract: A preparative purification apparatus capable of adjusting a mixing ratio of a mobile phase and an elution solvent contained in a solution to be collected. A liquid feeding unit which feeds an elution solvent to an inlet of a trap column; a flow path switching unit which selectively connects an outlet of the trap column to one of a waste liquid flow path or a recovery flow path; a liquid feed amount measurement unit; and a flow path control unit which performs a control such that the flow path switching unit is connected to the recovery flow path when the amount of the elution solvent fed to the trap column reaches a predetermined initial waste liquid amount, and thereafter, the flow path switching unit is connected to the waste liquid flow path at a timing of reaching a predetermined solution recovery amount.
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公开(公告)号：US20240302250A1
公开(公告)日：2024-09-12
申请号：US18594095
申请日：2024-03-04
Inventor： Takuya YOSHIOKA , Yosuke IWATA , Yusuke NAGAI , Katsumasa SAKAMOTO , Takuji SHODA , Tomoaki SAKAMOTO
Abstract: A liquid sampling method in a flow monitoring system including a sampling section having a needle for performing sampling of a liquid, an analysis section that performs analysis of the liquid sampled by the sampling section, and a fluid supply section that supplies a sample fluid in a state of gas-liquid two-phase flow containing a gas phase and a liquid phase with the sample remaining in the state of gas-liquid two-phase flow. The liquid sampling method includes: a storage step of storing, in the storage container, a liquid phase contained in the sample fluid; a separation step of separating, from a liquid phase, a gas phase contained in the liquid phase stored in the storage container; and an injection step of suctioning, as a sample, the liquid phase stored in the storage container from a distal end of the needle after the separation step and injecting a predetermined amount of the sample into the analysis section through the injection port.
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公开(公告)号：US20230324261A1
公开(公告)日：2023-10-12
申请号：US18132371
申请日：2023-04-08
Applicant: SHIMADZU CORPORATION
Inventor： Yusuke NAGAI , Yosuke IWATA , Tomoyuki YAMAZAKI
CPC classification number: G01N1/2035 , G01N1/14 , G01N2001/205
Abstract: It is an object to enable a sample of a sample source to be injected into a LC while a pressure state of the sample source is maintained. There are provided an injector (2) including a first sample loop (18) and an injection valve (20), a sample supply channel (26), a pump part (4), a second sample loop (12), a sample source channel (52), and a path construction part. The path construction part is configured to be capable of selectively constructing a sampling path and a sample supply path. The sampling path is configured so that the sample source channel (52) and the pump part (4) are fluidly connected to each other in a closed system with the second sample loop (12) interposed therebetween and the sample is drawn from the sample source to the second sample loop (12) using the pump part (4), and the sample supply path is configured so that the second sample loop (12) is separated from the sample source channel (52) while maintaining a closed system state of the sample source channel (52) and the pump part (4) or another pump (40) different from the pump part and the sample supply channel (26) are fluidly connected to each other with the second sample loop (12) interposed therebetween and the sample held in the second sample loop (12) is supplied to the injector (2) through the sample supply channel (26) using the pump part (4) or the other pump (40).
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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
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.
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