Patents by Inventor Akihiro Yasui
Akihiro Yasui 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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Publication number: 20200264201Abstract: An automated analyzer is provided with one or more dispensing lines 109, 209 that are each for loading and unloading, at one end thereof, a sample rack 101 having placed therein one or more sample containers accommodating a sample for analysis and for conveying the sample rack back and forth from a dispensing position for dispensing the sample from the sample containers and sample rack removal parts 111, 211 that are provided adjacent to the other ends of the dispensing lines 109, 209 and provide and receive sample racks to and from the dispensing lines 109, 209. According to this configuration, it is possible to convey an urgent sample while suppressing device complexity, preventing cost from increasing, and also maintaining speed.Type: ApplicationFiled: January 31, 2018Publication date: August 20, 2020Inventors: Akihisa MAKINO, Masashi AKUTSU, Hiroyuki MISHIMA, Akihiro YASUI
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Patent number: 10717087Abstract: Provided is an automated analysis device with which sufficient reaction process data can be acquired irrespective of the scale of the device, and with which it is possible to ensure freedom of the device configuration. An automated analysis device 100 is provided with: a reaction disk 1 which circumferentially accommodates a plurality of reaction vessels 2; a specimen dispensing mechanism 11 which dispenses a specimen into the reaction vessels 2; a reagent dispensing mechanism 7 which dispenses a reagent into the reaction vessels 2; a measuring unit 4 which measures a reaction process of a mixture of the specimen and the reagent in the reaction vessels 2; and a cleaning mechanism 3 which cleans the reaction vessels 2 after measurement.Type: GrantFiled: March 8, 2018Date of Patent: July 21, 2020Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Akihiro Yasui, Akihisa Makino, Masashi Akutsu, Hiroyuki Mishima, Yoshihiro Suzuki
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Patent number: 10690690Abstract: Provided is a specimen dispensing mechanism that includes a specimen nozzle dispensing a specimen to be analyzed in a specimen chamber to a reaction chamber by suctioning and ejecting the specimen, and the specimen dispensing mechanism is controlled so as to perform a specimen suctioning process of inserting the specimen nozzle into the specimen chamber and suctioning the specimen in the specimen chamber, a liquid suctioning process of suctioning a liquid by the specimen nozzle after the specimen suctioning process, and an ejection process of ejecting the liquid and a portion of the specimen to the empty reaction chamber from the specimen nozzle in this order. Thereby, it is possible to provide an automatic analyser and a method which are capable of dispensing a small amount of specimen with a high level of accuracy, without depending on the outer shape of a specimen nozzle or the viscosity of the specimen.Type: GrantFiled: April 7, 2016Date of Patent: June 23, 2020Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Akihiro Yasui, Saori Chida, Masaaki Hirano
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Publication number: 20200096529Abstract: The automatic analyzer includes: a member to be washed, such as a probe or a stirrer for contacting and stirring a liquid; a wash station in which the member to be washed is washed with a washing liquid; and a measuring part that measures an optical characteristic of an evaluation reagent contained in a reaction cell. A control unit brings the member to be washed that has been washed in the wash station into contact with the evaluation reagent, causes the measuring part to measure the optical characteristic after contact with the evaluation reagent, and calculates the amount of the washing liquid carried into the reaction cell by the member to be washed, based on the measured optical characteristic.Type: ApplicationFiled: January 31, 2017Publication date: March 26, 2020Inventors: Saori CHIDA, Yoichi ARUGA, Akihiro YASUI, Yoshiki MURAMATSU, Yoko INOUE, Hideto TAMEZANE
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Patent number: 10554093Abstract: A stator of a brushless motor includes: a stator core; a coil that is formed by winding a conducting wire around the stator core; a connecting terminal that is electrically connected to an end portion of the coil; and a terminal fixing base that has an electrical insulation property, is attached to an end portion of the stator core on one side in an axial direction thereof, and fixes the connecting terminal. The connecting terminal includes a fixing portion that is fixed to the terminal fixing base, an outward projecting portion that extends from the fixing portion toward outside in a radial direction than the stator core, and a joining portion that overlaps with the outward projecting portion in the axial direction and is positioned outside the stator core in the radial direction. The joining portion is opened outward in the radial direction.Type: GrantFiled: September 13, 2017Date of Patent: February 4, 2020Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Nobuyasu Miwa, Kiyohiro Fukaya, Takemitsu Sumiya, Akihiro Yasui
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Publication number: 20200009572Abstract: Provided is an automated analysis device with which sufficient reaction process data can be acquired irrespective of the scale of the device, and with which it is possible to ensure freedom of the device configuration. An automated analysis device 100 is provided with: a reaction disk 1 which circumferentially accommodates a plurality of reaction vessels 2; a specimen dispensing mechanism 11 which dispenses a specimen into the reaction vessels 2; a reagent dispensing mechanism 7 which dispenses a reagent into the reaction vessels 2; a measuring unit 4 which measures a reaction process of a mixture of the specimen and the reagent in the reaction vessels 2; and a cleaning mechanism 3 which cleans the reaction vessels 2 after measurement.Type: ApplicationFiled: March 8, 2018Publication date: January 9, 2020Inventors: Akihiro YASUI, Akihisa MAKINO, Masashi AKUTSU, Hiroyuki MISHIMA, Yoshihiro SUZUKI
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Publication number: 20190361042Abstract: An automatic analyzer (100) includes: a storage unit (21b) that stores various parameters of the automatic analyzer (100) in association with each of elevations used in the automatic analyzers (100), the parameters being optimized for each of the elevations; an input unit (21d) that acquires information of an elevation at which the automatic analyzer (100) is provided; and a controller (21a) that reads the parameters stored in the storage unit (21b) and sets the read parameters to the automatic analyzer (100) based on the elevation acquired by the input unit (21d). As a result, various parameters can be easily adjusted according to a usage environment of the device.Type: ApplicationFiled: September 14, 2017Publication date: November 28, 2019Inventors: Akihiro YASUI, Gorou YOSHIDA, Yoshiki MURAMATSU, Isao YAMAZAKI
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Publication number: 20190317119Abstract: The present invention is provided with a sample rack insertion unit 12 that is capable of holding one or more sample racks 5 having mounted therein one or more sample containers 6 accommodating a sample to be analyzed, one or more analysis devices 2, 3 for analyzing the sample accommodated in the sample containers 6, a sample rack conveyance unit 14 for conveying the sample racks 5 from the sample rack insertion unit 12 to the analysis devices 2, 3, and a control device 4 for acquiring, for each analysis device 2, 3, load information that is information expressing an operating condition of the analysis device 2, 3, and, if there is an analysis device 2, 3 for which the load information is larger than a predetermined conveyance permission value, carrying out control so as to stop the conveyance of the sample racks 5 from the sample rack insertion unit 12 to the analysis device(s) 2, 3.Type: ApplicationFiled: November 13, 2017Publication date: October 17, 2019Inventors: Masashi AKUTSU, Akihisa MAKINO, Hiroyuki MISHIMA, Akihiro YASUI
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Patent number: 10302668Abstract: In a case where a sample container 15 has a rubber-made lid 35, if a sample nozzle descends and comes into contact with the lid, the sample nozzle is relatively moved inside an arm as far as a lid detection distance, and a detector detects a detection plate. A fact that the sample nozzle comes into contact with the lid is stored together with position information of the sample nozzle, into an operation commanding unit. The sample nozzle further continues to descend, and a suction operation of a sample is performed at a predetermined position. In a case where the sample nozzle collides with a frame portion of the lid and external force is applied thereto, the detector detects that the detection plate is relatively moved as far as the detection distance.Type: GrantFiled: January 5, 2015Date of Patent: May 28, 2019Assignee: Hitachi High-Technologies CorporationInventors: Akihiro Yasui, Yoshihiro Suzuki, Kazuhiro Nakamura, Hitoshi Tokieda
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Publication number: 20190049477Abstract: The invention provides a highly reliable automatic analyzer and dispenser probe cleaning method that allows for the removal of leftover cleaning water from the outer wall surfaces of a probe without increasing the size of a cleaning bath and contaminating the outer wall surfaces of the probe. A cleaning bath 113 (108, 106) comprises: a cleaning water outlet 203 for discharging into the cleaning bath 113 (108, 116) the cleaning water supplied from a cleaning water supply mechanism 123; and a compressed air outlet 204, disposed on the trajectory of the cleaning water discharged from the cleaning water outlet 203, for discharging the compressed air supplied from a compressed air supply mechanism 124 toward a sample probe 111b or a reagent probe 120 inserted in the cleaning bath 113 (108, 106).Type: ApplicationFiled: January 31, 2017Publication date: February 14, 2019Inventors: Yoshiki MURAMATSU, Akihiro YASUI, Yoshihiro SUZUKI, Yoichi ARUGA
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Patent number: 10184948Abstract: An automated analyzer maintains high processing capacity and dispensation accuracy even when items requiring dilution/pretreatment and general reaction measurement are mixed. A plurality of sample dispensing mechanisms are independently driven and each include a sample collection position, a sample nozzle for collecting the sample, and a washing tank for washing the sample nozzle. The sample dispensing mechanisms are configured to collect the sample from a plurality of sample collection positions and are operated independently to perform sample dispensation into reaction containers on a reaction disc. At least one of the sample dispensing mechanisms is provided for each of a sample requiring dilution/pretreatment and a sample that does not require dilution/pretreatment. The automated analyzer is provided with a control means for causing the respective mechanisms to be operated in a dedicated manner. The sample is dispensed such that no vacancy is created in the reaction containers.Type: GrantFiled: August 24, 2016Date of Patent: January 22, 2019Assignee: Hitachi High-Technologies CorporationInventors: Akihiro Yasui, Yoshihiro Suzuki, Hitoshi Tokieda
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Publication number: 20180128847Abstract: An automatic analyzer is capable of ensuring sufficient nozzle cleaning and suppressing of deterioration in the accuracy of analysis. When it is judged that there remains no analysis item of the sample, a judgment is made on whether the sample dispensation quantity of the n-th sample dispensation is less than a dispensation quantity threshold value or not, and if less, a cleaning pattern is selected by making a judgment on whether or not all the sample dispensation quantities of the first through (n?1)-th sample dispensations are less than the dispensation quantity threshold value. If the sample dispensation quantity of the n-th sample dispensation is the dispensation quantity threshold value or more, another cleaning pattern selected by making the judgment on whether or not all the sample dispensation quantities of the first through (n?1)-th sample dispensations are less than the dispensation quantity threshold value.Type: ApplicationFiled: January 3, 2018Publication date: May 10, 2018Inventors: Akihiro Yasui, Hitoshi Tokieda, Toshihide Orihashi, Yoshiaki Saito, Naoto Suzuki
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Publication number: 20180120340Abstract: Provided is a specimen dispensing mechanism that includes a specimen nozzle dispensing a specimen to be analyzed in a specimen chamber to a reaction chamber by suctioning and ejecting the specimen, and the specimen dispensing mechanism is controlled so as to perform a specimen suctioning process of inserting the specimen nozzle into the specimen chamber and suctioning the specimen in the specimen chamber, a liquid suctioning process of suctioning a liquid by the specimen nozzle after the specimen suctioning process, and an ejection process of ejecting the liquid and a portion of the specimen to the empty reaction chamber from the specimen nozzle in this order. Thereby, it is possible to provide an automatic analyser and a method which are capable of dispensing a small amount of specimen with a high level of accuracy, without depending on the outer shape of a specimen nozzle or the viscosity of the specimen.Type: ApplicationFiled: April 7, 2016Publication date: May 3, 2018Inventors: Akihiro YASUI, Saori CHIDA, Masaaki HIRANO
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Publication number: 20180115200Abstract: A brushless motor includes: a magnet rotor rotatable integrally with a rotary shaft; and a stator disposed to face the magnet rotor with a gap therebetween in a diameter direction of the magnet rotor, The stator includes first teeth each having a first counter surface facing the magnet rotor with a first air gap therebetween, second teeth provided between the first teeth adjacent to each other in a circumferential direction of the stator and each having a second counter surface facing the magnet rotor through a second air gap, and drive coils formed by concentrically winding a conductive wire around only the first teeth.Type: ApplicationFiled: September 13, 2017Publication date: April 26, 2018Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Akihiro YASUI, Nobuyasu MIWA, Takemitsu SUMIYA, Eisuke UMEMURA
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Publication number: 20180115215Abstract: A stator of a brushless motor includes: a stator core; a coil that is formed by winding a conducting wire around the stator core; a connecting terminal that is electrically connected to an end portion of the coil; and a terminal fixing base that has an electrical insulation property, is attached to an end portion of the stator core on one side in an axial direction thereof, and fixes the connecting terminal. The connecting terminal includes a fixing portion that is fixed to the terminal fixing base, an outward projecting portion that extends from the fixing portion toward outside in a radial direction than the stator core, and a joining portion that overlaps with the outward projecting portion in the axial direction and is positioned outside the stator core in the radial direction. The joining portion is opened outward in the radial direction.Type: ApplicationFiled: September 13, 2017Publication date: April 26, 2018Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Nobuyasu MIWA, Kiyohiro FUKAYA, Takemitsu SUMIYA, Akihiro YASUI
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Patent number: 9891240Abstract: An automatic analyzer is capable of ensuring sufficient nozzle cleaning and suppressing of deterioration in the accuracy of analysis. When it is judged that there remains no analysis item of the sample, a judgment is made on whether the sample dispensation quantity of the n-th sample dispensation is less than a dispensation quantity threshold value or not, and if less, a cleaning pattern is selected by making a judgment on whether or not all the sample dispensation quantities of the first through (n?1)-th sample dispensations are less than the dispensation quantity threshold value. If the sample dispensation quantity of the n-th sample dispensation is the dispensation quantity threshold value or more, another cleaning pattern selected by making the judgment on whether or not all the sample dispensation quantities of the first through (n?1)-th sample dispensations are less than the dispensation quantity threshold value.Type: GrantFiled: July 25, 2013Date of Patent: February 13, 2018Assignee: Hitachi High-Technologies CorporationInventors: Akihiro Yasui, Hitoshi Tokieda, Toshihide Orihashi, Yoshiaki Saito, Naoto Suzuki
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Publication number: 20170335929Abstract: A door moving apparatus includes a motor unit, a first gear, a second gear, an endless belt, a drum, and a rotator. The first gear is mounted on a rotary shaft of the motor unit. The second gear includes a diameter larger than a diameter of the first gear and teeth more than the first gear. The endless belt passes over the first gear and the second gear. A rotary power of the second gear is transmitted to the drum via a rotary power transmission mechanism. The rotator is configured to reduce a separation of the endless belt from a preset running path.Type: ApplicationFiled: November 30, 2015Publication date: November 23, 2017Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Sadayuki MAKINO, Kariya-shi MORI, Eisuke UNEMURA, Kiyohiro FUKAYA, Takemitsu SUMIYA, Nobuyasu MIWA, Akihiro YASUI
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Patent number: 9772264Abstract: An automatic analyzer is capable of controlling the gap between the tip of the sample nozzle and the bottom surface of the reaction container and restricting the sample attached to the tip of the sample nozzle. A movement distance of an arm is calculated and stored while the tip of the sample nozzle contacts a coordinate measurement stand until a stop position detector detects a stop position detection plate. The sample nozzle is moved toward the bottom surface of the reaction container and is stopped at the time when the stop position detector detects the stop position detection plate. The arm is moved upwardly for the movement distance stored in memory from this position. The sample nozzle can be stopped such that the tip of the sample nozzle is contacted to the bottom surface of the reaction container and the bend (warp) of the sample nozzle is restricted.Type: GrantFiled: May 17, 2012Date of Patent: September 26, 2017Assignee: Hitachi High-Technologies CorporationInventors: Akihiro Yasui, Kazuhiro Nakamura, Hitoshi Tokieda
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Publication number: 20160363604Abstract: An automated analyzer maintains high processing capacity and dispensation accuracy even when items requiring dilution/pretreatment and general reaction measurement are mixed. A plurality of sample dispensing mechanisms are independently driven and each include a sample collection position, a sample nozzle for collecting the sample, and a washing tank for washing the sample nozzle. The sample dispensing mechanisms are configured to collect the sample from a plurality of sample collection positions and are operated independently to perform sample dispensation into reaction containers on a reaction disc. At least one of the sample dispensing mechanisms is provided for each of a sample requiring dilution/pretreatment and a sample that does not require dilution/pretreatment. The automated analyzer is provided with a control means for causing the respective mechanisms to be operated in a dedicated manner. The sample is dispensed such that no vacancy is created in the reaction containers.Type: ApplicationFiled: August 24, 2016Publication date: December 15, 2016Inventors: Akihiro YASUI, Yoshihiro SUZUKI, Hitoshi TOKIEDA
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Publication number: 20160327587Abstract: In a case where a sample container 15 has a rubber-made lid 35, if a sample nozzle descends and comes into contact with the lid, the sample nozzle is relatively moved inside an arm as far as a lid detection distance, and a detector detects a detection plate. A fact that the sample nozzle comes into contact with the lid is stored together with position information of the sample nozzle, into an operation commanding unit. The sample nozzle further continues to descend, and a suction operation of a sample is performed at a predetermined position. In a case where the sample nozzle collides with a frame portion of the lid and external force is applied thereto, the detector detects that the detection plate is relatively moved as far as the detection distance.Type: ApplicationFiled: January 5, 2015Publication date: November 10, 2016Inventors: Akihiro YASUI, Yoshihiro SUZUKI, Kazuhiro NAKAMURA, Hitoshi TOKIEDA