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).

  • Publication number: 20240042448
    Abstract: There is provided an automatic analyzer and a method of storing reagents in an automatic analyzer, in which restrictions on installation of reagent packs are smaller than those of the device in the related art. The automatic analyzer includes a reagent storage 105 that stores reagent packs 201, 301 containing reagents. The reagent storage 105 includes: a first holding unit 403 capable of holding only an immune reagent pack 201 containing a first reagent among the reagents; a second holding unit 404 capable of holding only a biochemical reagent pack 301 containing a second reagent that is different from the first reagent; and a third holding unit 405 capable of holding both the immune reagent pack 201 and the biochemical reagent pack 301.
    Type: Application
    Filed: November 29, 2021
    Publication date: February 8, 2024
    Inventors: Hiroya UMEKI, Akihiro YASUI, Hidetsugu TANOUE
  • Publication number: 20240017263
    Abstract: 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: Application
    Filed: September 29, 2023
    Publication date: January 18, 2024
    Applicant: Hitachi High-Tech Corporation
    Inventors: Akihiro YASUI, Akihisa MAKINO, Masashi AKUTSU, Hiroyuki MISHIMA, Yoshihiro SUZUKI
  • Patent number: 11826759
    Abstract: 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: Grant
    Filed: December 20, 2021
    Date of Patent: November 28, 2023
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Akihiro Yasui, Akihisa Makino, Masashi Akutsu, Hiroyuki Mishima, Yoshihiro Suzuki
  • Publication number: 20230258674
    Abstract: An automatic analysis apparatus includes: a driving rotor configured such that a rotational center extends vertically; a reaction disk mounted on the driving rotor; a plurality of reaction cells installed in the reaction disk and configured to form a circular row concentric with the driving rotor; a circular reaction chamber configured to accommodate the reaction cells; and a guide configured to guide an elevation trajectory of the reaction disk with respect to the driving rotor.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 17, 2023
    Inventors: Rie HORIUCHI, Akihiro YASUI
  • Publication number: 20230258672
    Abstract: This automated analysis device is provided with a plurality of analysis units for analyzing a specimen, a buffer portion which holds a plurality of specimen racks on which are placed specimen containers holding the specimen, a sampler portion which conveys the specimen racks held in the buffer portion to the analysis units, and a control portion which, when performing a process to deliver the specimen racks to the plurality of analysis units, outputs synchronization signals to all the plurality of analysis units, wherein the analysis unit performs a delivery process starting from the synchronization signal, and the analysis unit performs a delivery process starting from the synchronization signal.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 17, 2023
    Inventors: Masashi AKUTSU, Naoto SUZUKI, Hiroki FUJITA, Akihiro YASUI
  • Publication number: 20230194556
    Abstract: Provided are an automatic analyzer and a maintenance method for an automatic analyzer that can reduce an operation of a user relating to maintenance in a plurality of maintenance operation processes. The automatic analyzer includes an analysis unit 111 including a plurality of components and configured to analyze a specimen, and an overall control unit 134 configured to control an operation of the analysis unit 111. The analysis unit 111 is provided with a sensor that monitors states of the components, and when the sensor detects that an operator executed a specific operation on the components, the overall control unit 134 requests confirmation as to whether execution status of a maintenance operation needs to be updated.
    Type: Application
    Filed: February 25, 2021
    Publication date: June 22, 2023
    Inventors: Masahiro SHIROTANI, Akihiro YASUI, Takeshi SETOMARU
  • Patent number: 11662357
    Abstract: This automated analysis device is provided with a plurality of analysis units for analyzing a specimen, a buffer portion which holds a plurality of specimen racks on which are placed specimen containers holding the specimen, a sampler portion which conveys the specimen racks held in the buffer portion to the analysis units, and a control portion which, when performing a process to deliver the specimen racks to the plurality of analysis units, outputs synchronization signals to all the plurality of analysis units, wherein the analysis unit performs a delivery process starting from the synchronization signal, and the analysis unit performs a delivery process starting from the synchronization signal.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: May 30, 2023
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Masashi Akutsu, Naoto Suzuki, Hiroki Fujita, Akihiro Yasui
  • Publication number: 20230160917
    Abstract: An automatic analyzer includes: a plurality of dispensing units; and a plurality of pump units connected to the respective dispensing units. Each of the plurality of pump units includes: a syringe tube that has a liquid port at one end and an opening at another end; a syringe base that is attached to the opening at the other end of the syringe tube; a plunger that penetrates the syringe base and whose tip end is inserted inside the syringe tube; a seal piece that is configured to seal a gap between the plunger and the syringe base; an actuator; and a power transmission mechanism that connects the actuator and the plunger. Each plunger of the plurality of pump units has an individually set diameter and a different thickness. At least one of the syringe base and the syringe tube represents the diameter of the corresponding plunger in appearance.
    Type: Application
    Filed: February 3, 2021
    Publication date: May 25, 2023
    Inventors: Shunsuke MIYAMOTO, Hiroyuki MISHIMA, Hajime YAMAZAKI, Takeshi SETOMARU, Akihiro YASUI
  • Patent number: 11619639
    Abstract: The present invention reduces the turnaround time of an automated analyzer. During a period when cyclic measurement by a measurement unit is unnecessary, a controller washes a reaction vessel using a washing cycle having a cycle time shorter than that of an analysis cycle. A single analysis cycle and a single washing cycle both include a reaction disc stopping period and rotation period. In the washing cycle, there is no time during the stopping period when a sample dispensing mechanism, reagent dispensing mechanism, or stirring mechanism operates but there is a time when a washing mechanism operates. The washing cycle stopping period is shorter than the analysis cycle stopping period. The amount of rotation of the reaction disk in the analysis cycle rotation period is the same as the amount of rotation of the reaction disk in the washing cycle rotation period.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 4, 2023
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Akihiro Yasui, Tatsuya Fukugaki, Masashi Akutsu, Naoto Suzuki
  • Patent number: 11486887
    Abstract: 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: Grant
    Filed: November 13, 2017
    Date of Patent: November 1, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Masashi Akutsu, Akihisa Makino, Hiroyuki Mishima, Akihiro Yasui
  • Publication number: 20220236213
    Abstract: An automatic analysis device 100 includes an electrolyte measurement unit 114 that executes internal standard solution measurement once or more at least before potential measurement of the specimen, and when the potential measurement of the specimen is continuously executed by the electrolyte measurement unit 114, a measurement operation of the internal standard solution before the potential measurement is changed depending on whether there is a possibility that the specimen measured immediately before is a high concentration specimen. This provides an automatic analysis device and an automatic analysis method of a specimen that are capable of improving the processing capacity of the entire device by reducing the carry-over and ensuring measurement accuracy in performing electrolyte measurement.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 28, 2022
    Inventors: Masashi FUKAYA, Akihiro YASUI
  • Publication number: 20220178959
    Abstract: Provided is an automatic analysis device, a cooling box, and a cooling method for a reagent in the automatic analysis device capable of suppressing dew condensation on the outside of the reagent cooling box without increasing an outer diameter of the cooling box and without affecting a reagent temperature. The automatic analysis device 100 is a device that is configured to measure physical properties of reaction liquid in which a sample and a reagent are dispensed respectively and reacted in a reaction container 30, and includes a reagent cooling box 24 that is configured to store a reagent container 106 housing the reagent, and a heating unit that is disposed on an outer peripheral part of the reagent cooling box 24 to heat the outer peripheral part.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 9, 2022
    Inventors: Satoshi NAKAJIMA, Akihiro YASUI, Takeshi SETOMARU
  • Publication number: 20220170956
    Abstract: There is provided an automatic analysis device with a structure in which a measurement unit is less susceptible to disturbance as compared to a device in the related art, and a method of designing the automatic analysis device. A first rotation axis 301 of a reaction disk 1, a second rotation axis 302 of a reagent disk 9, and a measurement unit are arranged on the same straight line 311 when an automatic analysis device 100 is viewed from an upper surface side, the first rotation axis 301 of the reaction disk 1 is arranged between the second rotation axis 302 of the reagent disk 9 and the measurement unit, and the measurement unit is arranged on a front side to be accessed by a user of the automatic analysis device 100.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 2, 2022
    Inventors: Akihiro YASUI, Takeshi SETOMARU, Akinori KIYOKAWA, Masashi FUKAYA
  • Publication number: 20220111391
    Abstract: 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: Application
    Filed: December 20, 2021
    Publication date: April 14, 2022
    Inventors: Akihiro YASUI, Akihisa MAKINO, Masashi AKUTSU, Hiroyuki MISHIMA, Yoshihiro SUZUKI
  • Patent number: 11268971
    Abstract: 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: Grant
    Filed: January 31, 2018
    Date of Patent: March 8, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Akihisa Makino, Masashi Akutsu, Hiroyuki Mishima, Akihiro Yasui
  • Publication number: 20220034927
    Abstract: In this invention, there are cleaning positions 25a, 25b, and 25c where cleaning tanks 19, 20, and 21 discharge cleaning water onto the surfaces of nozzles 10, 12, and 14 and drying positions 26a, 26b, and 26c where the cleaning water adhered to the surfaces of the nozzles 10, 12, and 14 is sucked up. During movement from the cleaning positions 25a, 25b, and 25c for the nozzles 10, 12, and 14 to the drying positions 26a, 26b, and 26c for the nozzles 10, 12, and 14, a control device 24 causes system water to be discharged from the nozzles 10, 12, and 14 for a first time, and during the sucking up of the cleaning water on the surfaces of the nozzles 10, 12, and 14 at the drying positions 26a, 26b, and 26c, the control device 24 causes the system water to be discharged from the nozzles 10, 12, and 14 for a second time. As a result, it is possible to effectively remove adhered water drops during nozzle cleaning.
    Type: Application
    Filed: July 2, 2019
    Publication date: February 3, 2022
    Inventors: Masashi Fukaya, Masaaki Hirano, Akihiro Yasui
  • Patent number: 11235334
    Abstract: 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: Grant
    Filed: July 1, 2020
    Date of Patent: February 1, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Akihiro Yasui, Akihisa Makino, Masashi Akutsu, Hiroyuki Mishima, Yoshihiro Suzuki
  • Patent number: 11231433
    Abstract: 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: Grant
    Filed: January 31, 2017
    Date of Patent: January 25, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Yoshiki Muramatsu, Akihiro Yasui, Yoshihiro Suzuki, Yoichi Aruga
  • Publication number: 20220018867
    Abstract: In an automatic analysis device, it is possible during specimen analysis to add/deposit one rack at a time without stopping the analysis, and it is easy to ascertain the analysis sequence. The analyzer has an analysis module, a rack transport module for transporting a specimen rack in which a specimen container storing a specimen is loaded, and a control device. The rack transport module includes a rack supply part for supplying a specimen rack, a rack accommodating part for accommodating a specimen rack, a rack transport line for transporting a specimen rack supplied from the rack supply part, a dispensing line for transporting a specimen rack to the analysis module, and a rack rotor for transferring a specimen rack between the rack transport line and the dispensing line. Operation of the rack supply part for supplying a specimen rack can be stopped independently of the operation of the analysis module.
    Type: Application
    Filed: February 4, 2020
    Publication date: January 20, 2022
    Inventors: Kohei HIROKI, Akihiro YASUI, Takeshi SETOMARU
  • Publication number: 20220011333
    Abstract: Provided is an automatic analysis system in which a conveying line 104 and a plurality of dispensation lines 209, 309 are disposed not to be parallel, and a device layout of analysis modules 200, 300 disposed with a specimen rack distribution module 100 therebetween is line-symmetric with respect to a straight line 100A passing through the rotation center of a standby disc 106. Accordingly, even when the automatic analysis system has a configuration for providing specimens from a common specimen rack distribution module to a plurality of analysis modules, the conveyance efficiency of a specimen rack is raised and user accessibility is good.
    Type: Application
    Filed: December 2, 2019
    Publication date: January 13, 2022
    Inventors: Satoshi NAKAJIMA, Akihiro YASUI, Takeshi SETOMARU