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公开(公告)号：US20220178817A1
公开(公告)日：2022-06-09
申请号：US17593983
申请日：2020-03-18
Applicant: Hitachi, Ltd.
Inventor： Toshimitsu NOGUCHI , Takuya KAMBAYASHI , Shunsuke KONO , Akihiro NOJIMA
Abstract: An object of the invention is to provide an optical analysis method and an optical analysis system capable of accurately performing an optical analysis by using transmitted light even though a sample contains a turbid substance. The optical analysis method of the present disclosure is an optical analysis method for irradiating a sample s containing a turbid substance in a cell 11 with light and performing optical analysis on the sample s by using transmitted light of the light. The optical analysis method includes: exciting the sample s in the cell 11 by irradiation with ultrasonic waves while adjusting a frequency of the ultrasonic waves such that an intensity of the transmitted light is maximized, and then performing the optical analysis in a state where the sample s is irradiated with ultrasonic waves of this adjusted frequency.
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2.发明申请公开(公告)号：US20200291341A1
公开(公告)日：2020-09-17
申请号：US16774048
申请日：2020-01-28
Applicant: HITACHI, LTD.
Inventor： Shunsuke KONO , Takuya KAMBAYASHI , Toshimitsu NOGUCHI , Akihiro NOJIMA
Abstract: Human labor and time can be reduced, and a high-accuracy numerical model can be created. Provided is a pseudo sample creation method including mixing a pre-culture liquid medium that is not used to culture a sample, a post-culture liquid medium that is used to culture the sample, and an additive containing at least one of saccharides, an amino acid, a metabolite, and protein with one another to create a pseudo sample. In addition, provided is a numerical model creation system including: a spectrometer that acquires spectral data of a pseudo sample; a reference value measuring device that measures a reference value of the pseudo sample; and an analyzer that creates a numerical model representing a correlation between the spectral data and the reference value based on the spectral data and the reference values obtained from a plurality of pseudo samples.
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公开(公告)号：US20240035956A1
公开(公告)日：2024-02-01
申请号：US18021376
申请日：2021-09-24
Applicant: Hitachi, Ltd.
Inventor： Shunsuke KONO , Takuya KAMBAYASHI
Abstract: An object of the present invention is to realize an optical analysis system that enables long-term analysis by reducing the amount of liquid used for analysis. The optical analysis system includes: a first flow channel for transporting a liquid in a container; a branching medium for alternately outputting the liquid and the gas in the first flow channel; a third flow channel for transporting the liquid and the gas flowing out from the branching medium; an analysis cell into which the liquid and the gas in the third flow channel flow; a fourth flow channel that is connected to the analysis cell to discharge the liquid and the gas after passing through the analysis cell; a pump for transporting the liquid and the gas; and a control device. Then, the control device sets a reference liquid amount that is a reference required for analysis, and controls the branching medium and the pump to make the liquid and the gas alternately flow into the third flow channel. The amount of gas flowing into the third flow channel is made larger than the amount of liquid.
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公开(公告)号：US20220317023A1
公开(公告)日：2022-10-06
申请号：US17596051
申请日：2020-03-19
Applicant: Hitachi, Ltd.
Inventor： Takuya KAMBAYASHI , Toshimitsu NOGUCHI , Shunsuke KONO , Akihiro NOJIMA
Abstract: An arithmetic expression used for estimating a target item of a specimen is more easily incorporated into an optical measurement system. An optical measurement instrument includes an optical analysis unit configured to perform an optical analysis on a specimen and measure an intensity of light as a result of the optical analysis, and an arithmetic processing unit configured to download an arithmetic expression from a server device via a network, and perform a quantitative analysis on a target substance contained in the specimen by substituting the result of the optical analysis by the optical analysis unit into the arithmetic expression.
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公开(公告)号：US20190302017A1
公开(公告)日：2019-10-03
申请号：US16208432
申请日：2018-12-03
Applicant: HITACHI, LTD.
Inventor： Takuya KAMBAYASHI , Toshimitsu NOGUCHI , Shunsuke KONO
Abstract: To provide a reaction system capable of analyzing a liquid sample with high accuracy. To provide a reaction system A including: a reaction vessel 1, a flow channel 2 including a deformable unit 22 having an elastic member, a pump 3, a flow channel deformation mechanism 4, a measurement unit 5 and an analysis unit 6, wherein the measurement unit 5 includes a light source unit 52 and a light receiving unit 54, the flow channel deformation mechanism 4 includes an operation unit 42 for deforming the deformable unit 22 of the flow channel 2 such that a cross-sectional area of the deformable unit 22 is reduced, and the analysis unit 6 is electrically or physically connected to the measurement unit 5 and the flow channel deformation mechanism 4, and operates the flow channel deformation mechanism 4 based on a measurement result obtained by the measurement unit 5.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190299129A1
公开(公告)日：2019-10-03
申请号：US16180433
申请日：2018-11-05
Applicant: HITACHI, LTD.
Inventor： Toshimitsu NOGUCHI , Takuya KAMBAYASHI
Abstract: A turbid matter separating apparatus extracts turbid matter and a supernatant liquid separately from a suspension. The invention is directed to a turbid matter separating apparatus which includes a liquid container which includes a sediment discharge port and a supernatant liquid discharge port and is filled with a suspension containing turbid matter, a sediment valve which is provided in the sediment discharge port, a supernatant liquid valve which is provided in the supernatant liquid discharge port, an ultrasonic irradiator which irradiates the suspension filled in the liquid container with ultrasound, and a control unit which controls the sediment valve, the supernatant liquid valve, and the ultrasonic irradiator, the control unit being configured to control the sediment valve to discharge a sediment and controls a supernatant liquid valve to discharge a supernatant liquid after a predetermined time elapses since the irradiation with ultrasound by the ultrasonic irradiator is stopped.
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7.发明申请公开(公告)号：US20190162654A1
公开(公告)日：2019-05-30
申请号：US15940140
申请日：2018-03-29
Applicant: Hitachi, Ltd.
Inventor： Toshimitsu NOGUCHI , Takuya KAMBAYASHI , Shinichi TANIGUCHI
IPC: G01N21/27
CPC classification number: G01N21/27 , G01N21/85 , G01N2021/8557 , G01N2021/8578
Abstract: To perform more accurate analysis of a composition of a substance given at a sampling time, provided is an optical analysis apparatus, including: a flow passage, which is connected to a vessel, and is configured to allow a first substance to flow therethrough; an introduction unit, which is provided to the flow passage, and is configured to introduce at least two second substances to the flow passage, to thereby divide the first substance flowing through the flow passage; and a measurement unit, which is provided to the flow passage, and is configured to perform measurement by irradiating the first substance and the second substance flowing through the flow passage with light.
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8.发明公开公开(公告)号：US20240317609A1
公开(公告)日：2024-09-26
申请号：US18269713
申请日：2022-02-04
Applicant: Hitachi, Ltd.
Inventor： Jun TANAKA , Yasuko KOBAYASHI , Takuya KAMBAYASHI , Daisuke YAGI , Makiko UDAGAWA , Kotaro KITAMURA , Hiroki MIYAKAWA
IPC: C02F1/00 , C02F11/147
CPC classification number: C02F1/008 , C02F11/147 , C02F2209/006 , C02F2209/008 , C02F2209/02 , C02F2209/44
Abstract: A sludge treatment facility operation assistance navigation system acquires an operating flock state that is a flocculation flock state during operation of a sludge treatment facility, acquires an operating sludge water content that is a water content of dehydrated sludge during operation of the sludge treatment facility, selects or generates facility operation contents of a flocculation tank and a sludge dehydrator based on the operating flock state, the operating sludge water content, a desired flocculation flock state, and a desired sludge water content, and displays the facility operation contents on a display device.
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9.发明公开公开(公告)号：US20240102925A1
公开(公告)日：2024-03-28
申请号：US18274583
申请日：2021-11-30
Applicant: Hitachi, Ltd.
Inventor： Yasuko KOBAYASHI , Jun TANAKA , Takuya KAMBAYASHI , Yusuke KAGA , Shunsuke KONO , Kotaro KITAMURA , Makiko UDAGAWA , Hiroki MIYAKAWA
IPC: G01N21/3554 , C02F1/00 , C02F11/12
CPC classification number: G01N21/3554 , C02F1/008 , C02F11/12 , C02F2209/006 , G01N2201/12753
Abstract: A moisture content measurement method that calculates moisture content of dehydrated sludge using a calibration curve for calculating the moisture content of the dehydrated sludge, the calibration curve being obtained by performing multivariate regression analysis after first-order differential processing or an offset correction is performed on absorbance for reflected light or reflectance for infrared rays from dehydrated sludge, the absorbance or the reflectance being obtained by measuring the dehydrated sludge using an infrared measurement apparatus provided with a light-receiving unit that can receive at least infrared rays reflected from a target object to be measured and a light source that has a plurality of infrared LEDs that can emit infrared rays having respectively different wavelengths or a light source having an infrared-region tungsten lamp or halogen lamp.
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公开(公告)号：US20220244161A1
公开(公告)日：2022-08-04
申请号：US17574325
申请日：2022-01-12
Applicant: Hitachi, Ltd.
Inventor： Tomonari MISAWA , Takuya KAMBAYASHI
IPC: G01N15/02
Abstract: To provide a particle measuring device capable of removing particles adhering to an observation window for capturing an image of the particles and measuring an accurate particle size distribution. A particle measuring device that image-recognizes particles contained in a fluid to be measured and measures a physical quantity of the particles includes: a sample holding region that holds a sample containing the particles; an observation window disposed on a wall surface of the sample holding region; and a cleaning nozzle configured to discharge a cleaning liquid toward the observation window, in which the cleaning liquid is different from the fluid to be measured.
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