Patents by Inventor Izumi Waki
Izumi Waki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9597612Abstract: Provided is an analyzer performing solid-phase extraction of a measurement component (i.e., component to be measured) in a sample solution while decreasing an amount of waste generated and reducing a running cost. The analyzer includes: a solid-phase extraction container having a body part to receive a sample solution containing a measurement component of analytical target and a discharge passage to discharge the sample solution. Herein, the discharge passage is to be filled with a solid-phase extraction material for subjecting the measurement component to solid-phase extraction.Type: GrantFiled: July 25, 2013Date of Patent: March 21, 2017Assignee: Hitachi High-Technologies CorporationInventors: Tadao Yabuhara, Izumi Waki
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Patent number: 9494496Abstract: A solid-phase extraction apparatus capable of carrying out highly accurate solid-phase extraction by automatically controlling liquid-permeation speeds in an adsorbing step, a cleaning step, and an eluting step of the solid-phase extraction in order to improve the accuracy of the collection rate of a measurement component(s) also in measurement of each of sample solutions respectively having different viscosities and to ensure a certain processing ability.Type: GrantFiled: April 16, 2012Date of Patent: November 15, 2016Assignee: Hitachi High-Technologies CorporationInventors: Tadao Yabuhara, Shinya Ito, Izumi Waki
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Patent number: 9377445Abstract: In order to achieve an ionization method of high robustness with a small carry-over or less crosstalk, an ionization method is disclosed. A method includes the steps of: joining an ionization unit to a tube; sucking the sample from a sample container into a sample holder of the ionization unit to hold the sample; moving the ionization unit holding the sample to near the ionization unit using an ionization unit drive unit; and applying a voltage to the ionization unit using a power supply to ionize the sample by electrostatically spraying the sample from the holding unit.Type: GrantFiled: August 27, 2012Date of Patent: June 28, 2016Assignee: Hitachi High-Technologies CorporationInventors: Hiroyuki Satake, Hideki Hasegawa, Yuichiro Hashimoto, Masao Suga, Izumi Waki
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Patent number: 9207152Abstract: A biological sample preprocessing apparatus includes solid-phase extraction cartridges which purify/concentrate specific constituents of a biological sample, cartridge holders which hold one of the solid-phase extraction cartridges, a cartridge transport that carries the cartridge holders along a continuous track surface, a sample probe that discharges the biological sample into the solid-phase extraction cartridge held in the cartridge holders, a water-based solvent probe that discharges a water-based solvent into the solid-phase extraction cartridge held in the cartridge holder, an organic solvent probe that discharges an organic solvent into the solid-phase extraction cartridge held in the cartridge holder, a pressure loader that applies an air pressure load to the solid-phase extraction cartridge held in the cartridge holder, and a control unit that controls operation of the cartridge transport, the sample probe, the solvent probes, and the pressure loader, wherein sample addition and solvent addition altType: GrantFiled: June 24, 2010Date of Patent: December 8, 2015Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Makoto Nogami, Katsuhiro Kanda, Izumi Waki
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Patent number: 9176037Abstract: Disclosed is a specimen processing system that includes means 91 circularly disposed to carry a reaction vessel 2 used for separating and extracting desired substances from a specimen to be processed, a plurality of processing steps, executed as processing progresses along a transport line for the reaction vessel 2 on the transport means 91, for conducting various processes upon the specimen to be processed that is accommodated in the reaction vessel 2, suctioning and discharging means 94 that dispenses the specimen from a specimen container 1 supplied to the system, into the reaction vessel 2, and a filtering vessel section 2b provided as a part of the reaction vessel 2. This system configuration allows realization of a rapid preprocessing system capable of reducing the number of disposable parts of a low carry-over type, suppressing a decrease in cost performance, operating with high collection efficiency, and employing compact devices.Type: GrantFiled: August 10, 2010Date of Patent: November 3, 2015Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Katsuhiro Kanda, Makoto Nogami, Izumi Waki
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Publication number: 20150182877Abstract: Provided is an analyzer performing solid-phase extraction of a measurement component (i.e., component to be measured) in a sample solution while decreasing an amount of waste generated and reducing a running cost. The analyzer includes: a solid-phase extraction container having a body part to receive a sample solution containing a measurement component of analytical target and a discharge passage to discharge the sample solution. Herein, the discharge passage is to be filled with a solid-phase extraction material for subjecting the measurement component to solid-phase extraction.Type: ApplicationFiled: July 25, 2013Publication date: July 2, 2015Applicant: Hitachi High- Technologies CorporationInventors: Tadao Yabuhara, Izumi Waki
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Publication number: 20150111300Abstract: A clinical laboratory apparatus includes a pretreating apparatus having a high separation capability and providing high data reproducibility and reliability and a mass spectrometer is provided which executes fully automatic processing from pretreatment to detection. The pretreating apparatus that includes a cartridge for holding an extraction agent for solid-phase extraction, a pressure-loading unit for applying a pressure load to any cartridge mounted on the solid-phase extraction cartridge-retaining unit, a receiving tray mechanism for receiving a sample extracted from the cartridge, and a liquid-level sensor for detecting liquid levels in the receiving tray as well as in the cartridge, conducts feedback control for the pressure-loading unit to open its pressure release valve upon the liquid-level sensor detecting that the liquid level in the receiving tray mechanism has reached a preset liquid-level position.Type: ApplicationFiled: December 22, 2014Publication date: April 23, 2015Inventors: Makoto NOGAMI, Katsuhiro KANDA, Izumi WAKI
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Publication number: 20150102232Abstract: In order to achieve an ionization method of high robustness with a small carry-over or less crosstalk, an ionization method is disclosed. A method includes the steps of: joining an ionization unit to a tube; sucking the sample from a sample container into a sample holder of the ionization unit to hold the sample; moving the ionization unit holding the sample to near the ionization unit using an ionization unit drive unit; and applying a voltage to the ionization unit using a power supply to ionize the sample by electrostatically spraying the sample from the holding unit.Type: ApplicationFiled: August 27, 2012Publication date: April 16, 2015Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Hiroyuki Satake, Hideki Hasegawa, Yuichiro Hahimoto, Masao Suga, Izumi Waki
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Publication number: 20150064739Abstract: An analyzer includes a pretreatment device and a mass spectrometer. The pretreatment device includes a solid phase extraction mechanism. The mass spectrometer performs mass spectrometry on a sample pretreated by the pretreatment device and then subjected to ionization. The analyzer also includes a storage unit that stores data on dependence of signal intensities of the analyte substance to be measured and the internal standard upon the concentration of a substance inhibiting ionization in the sample, and that stores data on a recovery rate. The analyzer also includes a correcting unit that corrects measurement results of the sample and the internal standard on the basis of the data stored in the storage unit.Type: ApplicationFiled: November 7, 2014Publication date: March 5, 2015Inventors: Makoto NOGAMI, Yuichiro HASHIMOTO, Izumi WAKI, Katsuhiro KANDA
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Patent number: 8926903Abstract: To perform accurate measurement in the analysis of chemical components with low concentration, pretreatment such as concentration and purification of samples is essential. For high-throughput of pretreatment of biological samples, various random clinical testing is encountered, where analytes change from sample to sample. The pretreatment apparatus has a separating agent selectively separating a specific component by allowing a sample solution to flow therethrough. A holding section holds a plurality of housing sections, which house the separating agent therein, and has an endless track. A pressurizing section applies pressure to the housing section in a continuous and random-accessible manner; and an extraction solution receiver mechanism selectively receives an extracted solution from the separating agent housed in the housing section. A mass spectrometer is that can be connected to the pretreatment apparatus. Thus, a large number of specimens can be simultaneously processed.Type: GrantFiled: July 8, 2009Date of Patent: January 6, 2015Assignee: Hitachi High-Technologies CorporationInventors: Makoto Nogami, Katsuhiro Kanda, Izumi Waki
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Patent number: 8865418Abstract: An immunoanalytical system in which, after a sample such as a patient's serum is subjected to a pretreatment by an immunological pretreatment device, the sample is subjected to light detection by an immunological photometric detection system. Subsequently, the mass spectrometric pretreatment device performs a pretreatment, and the mass spectrometric detection system performs mass spectrometry. The mass spectrometric detection system performs mass spectrometry on components contained in a supernatant. A signal intensity and peak area for each of components are calculated from an obtained chromatograph. A quantitative value measured based on the immunoanalytical method is calculated for each of the components on the basis of the relative ratios of the components.Type: GrantFiled: February 9, 2010Date of Patent: October 21, 2014Assignee: Hitachi High-Technologies CorporationInventors: Katsuhiro Kanda, Makoto Nogami, Izumi Waki
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Publication number: 20140137671Abstract: A solid-phase extraction apparatus capable of carrying out highly accurate solid-phase extraction by automatically controlling liquid-permeation speeds in an adsorbing step, a cleaning step, and an eluting step of the solid-phase extraction in order to improve the accuracy of the collection rate of a measurement component(s) also in measurement of each of sample solutions respectively having different viscosities and to ensure a certain processing ability.Type: ApplicationFiled: April 16, 2012Publication date: May 22, 2014Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Tadao Yabuhara, Shinya Ito, Izumi Waki
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Patent number: 8730459Abstract: Provided herein are an examination device and an examination method that can efficiently perform examination even when both whole blood and serum/blood plasma specimens are to be examined. A solid-phase extraction cartridge or a filter is placed on a continuous track of a cartridge table. A cup table is disposed below the cartridge table. A cup is placed on a continuous track of the cup table to receive a sample purified by the filter. When viewed from above, the continuous track of the cartridge table and the continuous track of the cup table cross each other at a position “m”, and each of the tracks crosses a position at which a sample probe operates. A pretreatment for serum/blood plasma is completed in one rotation of the cartridge table. A pretreatment for whole blood is completed in two rotations of the cartridge table.Type: GrantFiled: October 15, 2010Date of Patent: May 20, 2014Assignee: Hitachi High-Technologies CorporationInventors: Makoto Nogami, Katsuhiro Kanda, Shinya Ito, Izumi Waki
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Patent number: 8604425Abstract: The present invention relates to a pretreatment apparatus that performs concentration and separation of a sample, and in particular, in order to provide a sample pretreatment apparatus using a solid-phase extraction column, and a mass spectrometer using the same, which is particularly suitable for clinical analysis in which qualitative/quantitative analysis of a biological sample such as blood is performed, according to each operational step for a solid-phase extraction treatment, for example, a collection device serving as flow passages or containers for collection of waste liquid or extracted matter is installed on a bottom face of the solid-phase extraction column, and the extracted matter is separately collected without being mixed with waste liquid by switching the positions of the collection device.Type: GrantFiled: November 19, 2012Date of Patent: December 10, 2013Assignee: Hitachi High-Technologies CorporationInventors: Katsuhiro Kanda, Makoto Nogami, Izumi Waki
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Patent number: 8586916Abstract: A technology for collecting a granular substance adhering to a baggage with high rate without touching the substance and inspecting whether a dangerous or specific sample material is adhered to the baggage. A method for simplifying or automating such an inspection is also provided. An adhering matter inspection equipment (1) is characterized in that the equipment comprises a collecting section (5) for collecting a sample material peeled off from an inspection object (25) whereupon the sample material is adhered by blowing compression gas through a capturing filter (52), and an inspecting section (2) for analyzing the sample material captured by the capturing filter (52), and further characterized in that the inspection equipment comprises a section (3) for delivering a baggage to the inspecting section (2), and a carrying section (4) for carrying the capturing filter (52) from the capturing section (5) to the inspecting section (2).Type: GrantFiled: July 25, 2011Date of Patent: November 19, 2013Assignee: Hitachi, Ltd.Inventors: Hideo Kashima, Yasuaki Takada, Izumi Waki
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Publication number: 20130130401Abstract: A sample treatment apparatus is disclosed that allows a filtrate after reaction to be supplied to a solid phase extraction treatment without temporary collection. A necessary amount of a solid phase extracting agent is added to a solid phase extraction device for conditioning. An aqueous solution is added to the extracting agent and supernatants are discarded. A filter device is attached to an opening of the extraction and a sample is added into a filter reservoir. A hemolyzing agent is added to the sample, and they are stirred sufficiently to cause disruption of blood cells. A protein-denaturing solution is added to the mixture, and they stirred sufficiently to denature proteins contained in the sample. They are centrifuged to leave aggregate in the filter device, and the filtrate is supplied to the solid phase extracting agent through a filter unit without collecting the filtrate.Type: ApplicationFiled: June 10, 2011Publication date: May 23, 2013Inventors: Katsuhiro Kanda, Makoto Nogami, Shinya Ito, Izumi Waki
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Publication number: 20130048853Abstract: An adsorbent that enables solid phase extraction with high efficiency and good selectivity of solutes having a broad chromatographic polarity range including high-polarity solute molecules while suppressing adsorption of impurities, and a solid phase extraction method therefor are provided. A heterocyclic-ring-containing copolymer adsorbent that is provided herein comprises a copolymer that comprises: a multifunctional heterocyclic-ring-containing monomer having a heterocyclic ring containing at least two heteroatoms in the ring system; and a monomer that is copolymerizable with the multifunctional heterocyclic-ring-containing monomer, wherein the multifunctional heterocyclic ring constitutes the main chain structure.Type: ApplicationFiled: April 28, 2011Publication date: February 28, 2013Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Jun Nunoshige, Hiroyuki Kagawa, Shinya Ito, Katsuhiro Kanda, Izumi Waki, Kotaro Araya, Terumi Tamura
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Patent number: 8319179Abstract: The present invention relates to a pretreatment apparatus that performs concentration and separation of a sample, and in particular, in order to provide a sample pretreatment apparatus using a solid-phase extraction column, and a mass spectrometer using the same, which is particularly suitable for clinical analysis in which qualitative/quantitative analysis of a biological sample such as blood is performed, according to each operational step for a solid-phase extraction treatment, for example, a collection device serving as flow passages or containers for collection of waste liquid or extracted matter is installed on a bottom face of the solid-phase extraction column, and the extracted matter is separately collected without being mixed with waste liquid by switching the positions of the collection device.Type: GrantFiled: July 28, 2010Date of Patent: November 27, 2012Assignee: Hitachi High-Technologies CorporationInventors: Katsuhiro Kanda, Makoto Nogami, Izumi Waki
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Publication number: 20120206713Abstract: Provided herein are an examination device and an examination method that can efficiently perform examination even when both whole blood and serum/blood plasma specimens are to be examined. A solid-phase extraction cartridge or a filter is placed on a continuous track of a cartridge table. A cup table is disposed below the cartridge table. A cup is placed on a continuous track of the cup table to receive a sample purified by the filter. When viewed from above, the continuous track of the cartridge table and the continuous track of the cup table cross each other at a position “m”, and each of the tracks crosses a position at which a sample probe operates. A pretreatment for serum/blood plasma is completed in one rotation of the cartridge table. A pretreatment for whole blood is completed in two rotations of the cartridge table.Type: ApplicationFiled: October 15, 2010Publication date: August 16, 2012Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Makoto Nogami, Katsuhiro Kanda, Shinya Ito, Izumi Waki
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Patent number: 8217339Abstract: A technology for collecting a granular substance adhering to a baggage with high rate without touching the substance and inspecting whether a dangerous or specific sample material is adhered to the baggage. A method for simplifying or automating such an inspection is also provided. An adhering matter inspection equipment (1) is characterized in that the equipment comprises a collecting section (5) for collecting a sample material peeled off from an inspection object (25) whereupon the sample material is adhered by blowing compression gas through a capturing filter (52), and an inspecting section (2) for analyzing the sample material captured by the capturing filter (52), and further characterized in that the inspection equipment comprises a section (3) for delivering a baggage to the inspecting section (2), and a carrying section (4) for carrying the capturing filter (52) from the capturing section (5) to the inspecting section (2).Type: GrantFiled: March 14, 2005Date of Patent: July 10, 2012Assignee: Hitachi, Ltd.Inventors: Hideo Kashima, Yasuaki Takada, Izumi Waki