Patents Assigned to Arkray, Inc.
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Patent number: 12650386Abstract: A test strip holder includes: a holding member at which at least a portion of a lower side of an inner periphery is a cylindrical surface having a cylindrical shape, and at whose interior a test strip is held, and at which a direction of an imaginary central axis of the cylindrical surface is a horizontal direction or a direction inclined with respect to a vertical direction; an opening portion provided in an outer surface of the holding member; a sorting member rotating at an interior of the holding member around a rotation axis that coincides with the central axis; a pushing piece projecting out from a distal end edge, which is parallel to the central axis, at the sorting member in a direction of rotation of the sorting member; and a sorting piece projecting out from a distal end of the pushing piece toward the cylindrical surface.Type: GrantFiled: November 8, 2022Date of Patent: June 9, 2026Assignee: ARKRAY, Inc.Inventors: Noriaki Furusato, Yusuke Wada
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Patent number: 12644860Abstract: Provided is a method for analyzing a sample comprising hemoglobin A2 by capillary electrophoresis using an alkaline aqueous solution comprising a cationic polymer, which is the analysis method including the following steps: 1) obtaining an electropherogram of the sample by capillary electrophoresis; 2) specifying a detection time Tx of an X peak; 3) specifying a detection time Ta2 of an HbA2 peak; 4) specifying a detection time Ty of a Y peak; 5) calculating a correction coefficient from a relative relationship of the detection time Tx, Ta2, and Ty; 6) calculating a ratio of an HbA2 peak area to a total peak area or a ratio of a Y peak area to the total peak area in an electropherogram; and 7) correcting the ratio of the HbA2 peak area or the ratio of the Y peak area with the correction coefficient.Type: GrantFiled: October 12, 2023Date of Patent: June 2, 2026Assignee: ARKRAY, Inc.Inventor: Naotsugu Onuma
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Patent number: 12613193Abstract: A measurement system including: an insertion gate into which a test strip including first and second regions is inserted; a holder accommodating the test strip; a housing including a window facing the test strip; and a smart device including an illuminator illuminating the second region and including a camera imaging the first and second regions, in which the housing includes a mounting part placing the smart device on an outer surface of the housing in a state in which the camera and the illuminator are disposed at positions facing the window, and a measurement light source provided at a position to irradiate the first region, and in a case in which the camera images the first region, the illuminator is turned off while the measurement light source is turned on, and in a case in which the camera images the second region, the illuminator is turned on.Type: GrantFiled: October 2, 2023Date of Patent: April 28, 2026Assignee: ARKRAY, Inc.Inventors: Fumito Hiramura, Alexander Turner
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Patent number: 12597097Abstract: An information processing device includes an acquisition section that is coupled to a camera that continuously images a sample including a material component and flowing through a flow cell in time series and generates a first image of the sample and a second image in which a portion continuous to the first image in time series overlaps a part of the first image, and acquires the first image and the second image generated by the camera, and an image output section that outputs a composite image obtained by combining the first image and the second image.Type: GrantFiled: July 24, 2023Date of Patent: April 7, 2026Assignee: ARKRAY, Inc.Inventor: Koji Fujimoto
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Patent number: 12596117Abstract: The present disclosure provides a quality control substance for use in the analysis of erythrocytes, which can be prepared safely with easily available raw materials, which has an excellent preservation stability, and which can be used in the analysis of sediments in a sample. This quality control substance includes artificial particles whose form as observed with a microscope is similar to the form of erythrocytes as observed therewith.Type: GrantFiled: September 15, 2023Date of Patent: April 7, 2026Assignee: ARKRAY, Inc.Inventors: Kazuko Okumura, Atsushi Nakao, Kazuki Kudo
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Patent number: 12590920Abstract: A biosensor that is capable of performing measurement with a high reproducibility is provided in one aspect. The present disclosure, as one aspect, relates to a biosensor that includes a base material, a conductive part including two or more electrodes provided on a surface of the base material, and a reagent layer provided on at least a part of the conductive part, the reagent layer has a mean thickness of 5 ?m to 10 ?m and a mean thickness difference, calculated based on the following formula, of ?6 ?m to +5 ?m.Type: GrantFiled: April 20, 2023Date of Patent: March 31, 2026Assignee: ARKRAY, Inc.Inventors: Taro Mashimo, Shinjiro Sekimoto
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Patent number: 12590946Abstract: A test strip container includes: an accommodating member in which a test strip is accommodated; a moving member moving the test strip therein; a door member opening and closing at a side surface of the accommodating member to discharge the test strip out of the accommodating member, and cutting the interior and the exterior of the accommodating member off from each other when closed; a door accommodating portion covering the door member, in which the door member can open and close; and a discharge opening cutting the interior and an exterior of the door accommodating portion off from each other when closed, and is provided at the door accommodating portion so as to open and close to discharge the test strip to the exterior of the door accommodating portion, the discharge opening being able to open when the accommodating member is closed by the door member.Type: GrantFiled: November 8, 2022Date of Patent: March 31, 2026Assignee: ARKRAY, Inc.Inventors: Noriaki Furusato, Yusuke Wada
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Patent number: 12568362Abstract: A measurement device comprising: a processor; and a memory configured to store a program executed by the processor cause the measurement device to: first advertisement process for establishing a communication between a host device and a communication device by transmitting first advertisement information to the communication terminal, the first advertisement information including first state information indicating a state of the host device and first boding information indicating whether an encryption key used for the communication with the communication terminal is stored or not, in response to disconnection of the communication with the communication terminal, second advertisement process for re-establishing the communication between the host device and the communication terminal by transmitting second advertisement information after the encryption key is shared between the host device and the communication device, the second advertisement information including second boding information indicating that theType: GrantFiled: September 22, 2023Date of Patent: March 3, 2026Assignee: ARKRAY, Inc.Inventor: Yutaka Kawabata
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Patent number: 12533606Abstract: A liquid chromatography column comprising: a column tube including a flow path that runs therethrough in an axial direction of the column tube and that is filled with a filler; a filter unit that is mounted at an axial direction end of the column tube to trap the filler inside the flow path; and a cap that includes a through hole communicated with the flow path through the filter unit and that is mounted at the column tube, wherein a gap, which is a space into which the filler overflowing from the flow path can escape when the cap is being attached to the column tube, is formed at an outer side of a contact surface at which the column tube and the filter unit contact each other.Type: GrantFiled: July 26, 2023Date of Patent: January 27, 2026Assignee: ARKRAY, Inc.Inventor: Takao Minami
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Patent number: 12535461Abstract: Provided are a sample analysis method comprising: separating hemoglobin in a sample from the sample comprising the hemoglobin, in an alkaline solution by capillary electrophoresis, wherein the alkaline solution comprises a cationic polymer having a secondary amino group and a quaternary ammonium base.Type: GrantFiled: September 11, 2023Date of Patent: January 27, 2026Assignee: ARKRAY, Inc.Inventor: Naotsugu Onuma
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Publication number: 20260016478Abstract: Provided is a method for reducing the discrepancy between a measured value of component concentration in whole blood and a measured value of component concentration in plasma. A method for measuring a plasma component concentration using a whole blood sample includes: measuring a whole blood component concentration using a whole blood sample, using an electrochemical sensor method; computing a correction value using a whole blood component concentration measured value obtained through the measurement, a hematocrit value of the whole blood sample, and a response index of a sensor used for the measurement of the whole blood component concentration; and computing a plasma component concentration using the correction value and the whole blood component concentration measured value.Type: ApplicationFiled: July 8, 2025Publication date: January 15, 2026Applicant: ARKRAY, Inc.Inventors: Kazumasa OMOTO, Akira SEZAKI
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Patent number: 12517038Abstract: A control cuvette used for measurement accuracy control in a measuring apparatus for observing a formed element contained in a liquid sample after precipitating the formed element to a bottom surface of a cuvette, wherein an observation pattern representing a shape of the formed element contained in the liquid sample is provided at an observation surface of the control cuvette corresponding to the bottom surface of the cuvette.Type: GrantFiled: March 30, 2023Date of Patent: January 6, 2026Assignee: ARKRAY, Inc.Inventors: Tsuyoshi Takasu, Shinya Nakajima
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Patent number: 12510504Abstract: Using a biosensor including a flow path into which blood containing a target is introduced, an upstream electrode pair disposed in the flow path and having a reagent reacting with the target disposed on either of the electrodes, and a downstream electrode pair disposed at a downstream side of the flow path; the method includes a first detection step of detecting a first introduction of blood as far as the upstream electrode pair; a second detection step of detecting a second introduction of blood as far as the downstream electrode pair; a time measurement step of measuring a time difference from the first introduction to the second introduction; and a measurement step of acquiring the value related to the target based on the time difference by using any two electrodes among the upstream and downstream electrode pair after the second introduction is detected.Type: GrantFiled: September 8, 2022Date of Patent: December 30, 2025Assignee: ARKRAY, Inc.Inventors: Ayano Nakatani, Takeshi Shimizu
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Publication number: 20250377302Abstract: A determination system including a fluorescence determination element, a light source, and a control section. The fluorescence determination element has a predetermined plural number of fluorescent portions arranged at predetermined positions. The light source irradiates the fluorescence determination element with a single excitation light. The control section includes an image acquisition unit that acquires calibration data, which is image data from capturing the fluorescence determination element irradiated by the light source, and a determination unit that determines fluorescence information based on the calibration data.Type: ApplicationFiled: June 3, 2025Publication date: December 11, 2025Applicant: ARKRAY, Inc.Inventor: Fumito HIRAMURA
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Patent number: 12485413Abstract: A protective cover is for use with a measurement device. The measurement device is provided with an insertion aperture for insertion of a test strip onto which a liquid sample is spotted. The protective cover is inflected such that a rear face side thereof is recessed to match the shape of an end portion of the measurement device at which the insertion aperture is disposed. The protective cover is provided with an opening portion at which the test strip is insertable. A first drawing portion is provided at a rear face side lower edge of the opening portion. The first drawing portion draws the liquid sample by capillary force.Type: GrantFiled: September 20, 2023Date of Patent: December 2, 2025Assignee: ARKRAY, Inc.Inventor: Yuto Kanzaki
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Patent number: 12480883Abstract: An analysis device includes a measurement unit that measures a color state of a test strip under a defined condition, an imaging unit that captures an image of the color state of the test strip, an analysis unit that analyzes the color state from the captured image obtained by imaging by the imaging unit, and a switching unit that selectively switches between a first mode in which the measurement unit measures the color state and a second mode in which the analysis unit analyzes the color state from the captured image.Type: GrantFiled: September 5, 2023Date of Patent: November 25, 2025Assignee: ARKRAY, Inc.Inventors: Seiji Satake, Maiho Kitajima
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Patent number: D1106482Type: GrantFiled: August 22, 2024Date of Patent: December 16, 2025Assignee: ARKRAY, Inc.Inventors: Kenya Hara, Chiyong Kim, Kanako Ohashi
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Patent number: D1122952Type: GrantFiled: August 22, 2024Date of Patent: April 21, 2026Assignee: ARKRAY, INC.Inventors: Kenya Hara, Kanako Ohashi, Xin Zhong, Yuichi Koseki
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Patent number: D1122969Type: GrantFiled: August 22, 2024Date of Patent: April 21, 2026Assignee: ARKRAY, Inc.Inventors: Kenya Hara, Kanako Ohashi, Xin Zhong, Yuichi Koseki
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Patent number: D1124009Type: GrantFiled: August 22, 2024Date of Patent: April 28, 2026Assignee: ARKRAY, INC.Inventors: Kenya Hara, Kanako Ohashi, Xin Zhong, Yuichi Koseki