Patents by Inventor Koki YOKOYAMA

Koki YOKOYAMA 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).

  • Patent number: 12292438
    Abstract: Provided is an automatic analyzer to control a temperature of a reagent supplied to a magnetic separator with high accuracy. The automatic analyzer includes a magnetic separator that separates a magnetic component and a non-magnetic component from liquid obtained by reacting a sample with a first reagent, a storage unit that accommodates a second reagent, a pipe used to supply the second reagent to the magnetic separator, and a heat exchanger that adjusts a temperature around the pipe. It is preferable that the heat exchanger includes a heat absorption and dissipation unit and a fan that blows air heat-exchanged by the heat absorption and dissipation unit, and the air blown from the fan is blown onto the pipe.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: May 6, 2025
    Assignee: Hitachi High-Tech Corporation
    Inventors: Koki Yokoyama, Takenori Okusa
  • Patent number: 12235280
    Abstract: The invention provides an automatic analyzer capable of closing a lid of a container containing a reagent or a specimen without wearing an upper surface of the lid even when the lid fails to close. The automatic analyzer includes a container accommodation portion that has a lid openable and closable by a rotation fulcrum and accommodates a container containing a reagent or a specimen, and a lid closing guide portion that closes the lid by moving relative to the container accommodation portion, wherein the lid closing guide portion is in contact with an edge of the lid to close the lid.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: February 25, 2025
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Daisuke Kanai, Koki Yokoyama, Takenori Okusa
  • Publication number: 20240425309
    Abstract: In a sheet feeding device, when a multi tray is overlaid on a sheet cassette, a rib on the front-end portion of the multi tray is fitted in an engaging slit in the upper edge of a sidewall of the sheet cassette, and protrudes from the sidewall of the sheet cassette. When the sheet cassette and the multi tray overlaid thereon are inserted into an apparatus main body, a boss on the sidewall of the sheet cassette is pressed against a positioning member on an inner wall of the apparatus main body, via the rib protruding outward from the sidewall of the sheet cassette, so that the multi tray and the sheet cassette are set in position.
    Type: Application
    Filed: June 11, 2024
    Publication date: December 26, 2024
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Koki YOKOYAMA, Kei WAKAYAMA
  • Publication number: 20240383704
    Abstract: In a paper feeding device, a paper feeding cassette and a multi-tray are disposed to be freely inserted or extracted separately, a hook is disposed in the paper feeding cassette, and an engagement part is disposed in the multi-tray. In a state in which the paper feeding cassette and the multi-tray are pushed into and housed on the inside of a device main body, when a lever is operated, and the hook is moved in an upward direction against a biasing force of a coil spring, the hook is engaged with the engagement part, and, in this state, when the paper feeding cassette is drawn out, the hook moves the engagement part, and the multi-tray is drawn out together with the paper feeding cassette.
    Type: Application
    Filed: May 13, 2024
    Publication date: November 21, 2024
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Koki YOKOYAMA
  • Publication number: 20240310393
    Abstract: The present disclosure proposes, in order to increase a liquid temperature in a reaction tank to a predetermined temperature in a short time without increasing a capacity of a heater, an automatic analyzer including: the reaction tank configured to hold a liquid in which a reaction vessel configured to contain a reaction liquid is to be immersed; a pump configured to circulate the liquid and supply the liquid to the reaction tank; the heater configured to heat the liquid; a Peltier element configured to heat and cool the liquid; a first temperature sensor configured to detect a temperature of the liquid; and a control device configured to control an output of the heater and an output of the Peltier element based on the temperature detected by the first temperature sensor.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 19, 2024
    Applicant: Hitachi High-Tech Corporation
    Inventors: Sunao FUNAKOSHI, Takenori OKUSA, Koki YOKOYAMA
  • Publication number: 20240288459
    Abstract: The reagent refrigerator includes a reagent disc that forms a reagent container holder as a space for holding the reagent container, an inner wall disposed while being kept apart from the reagent disc by a predetermined distance, and a lid for closing the upper part of the reagent refrigerator. The reagent disc has a hole formed in the bottom surface of the reagent container holder, a first surface along a vertical direction, and a second surface formed along a horizontal direction. The lid includes a reagent aspiration hole through which a reagent aspiration nozzle is inserted for aspirating the reagent, and an openable lid for opening and closing an opening. The warm air is introduced at a predetermined angle so that the introduced warm air is split into the one along the first surface and the one along the second surface.
    Type: Application
    Filed: June 28, 2022
    Publication date: August 29, 2024
    Applicant: Hitachi High-Tech Corporation
    Inventors: Katsumi MIYAZAKI, Takenori OKUSA, Tsukasa SUENARI, Koki YOKOYAMA
  • Publication number: 20240264188
    Abstract: To provide a container disposal unit that enables disposal of a reaction container without clogging and includes a disposal unit having a simple structure and a small dead space, an automatic analyzer having the container disposal unit, and a method for discarding a reaction container used in the automatic analyzer. A reaction container disposal unit includes a reaction container disposal hole arranged on a back side of an automatic analyzer to discard a used reaction container 116a, a disposal box arranged on a front side of the automatic analyzer to temporarily store the used reaction container 116a, and an inclined part configured to connect the container disposal hole on the back side to an upper side of the disposal box on the front side so as to introduce the reaction container 116a into the disposal box.
    Type: Application
    Filed: March 2, 2022
    Publication date: August 8, 2024
    Inventors: Yohei SHIOTA, Kazuhiro NODA, Koki YOKOYAMA
  • Patent number: 11953508
    Abstract: An automatic analysis device includes a processing unit 3 which performs the treatment on a specimen before analysis of the specimen, supply equipment which supplies a reagent to a reaction vessel 11 disposed in the processing unit 3, a liquid temperature adjusting unit 1 which adjusts a temperature of the reagent supplied to the reaction vessel 11 by the supply equipment, a control unit 201, and a first temperature detection unit 4 which detects at least one temperature of a temperature of the air within the processing unit 3 and a temperature of the reagent supplied to the reaction vessel 11, in which the liquid temperature adjusting unit 1 and the control unit 201 execute temperature adjustment of the reagent based on a first temperature detected by the first temperature detection unit 4.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: April 9, 2024
    Assignee: Hitachi High-Tech Corporation
    Inventors: Sunao Funakoshi, Takenori Okusa, Nobuyuki Isoshima, Koki Yokoyama
  • Patent number: 11906534
    Abstract: Provided is an automated analyzer comprising a temperature regulator that can be made more compact in size while maintaining high-precision temperature regulation. In a temperature-regulating unit (20) of the automated analyzer, a first chemical reservoir (1) is constituted by a large-diameter spiral-shaped pipe, and a second chemical reservoir (2) is constituted by a large-diameter chemical reservoir container. The first chemical reservoir (1), which is positioned upstream of the second chemical reservoir (2), has an internal capacity that is set so as to be greater than the volume of a single discharge of each of syringe pumps (29, 30, 31), and the second chemical reservoir (2) also has an internal capacity (volume) that is set so as to be greater than the volume of a single discharge of each of the respective syringe pumps (29, 30, 31).
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: February 20, 2024
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Sunao Funakoshi, Takenori Okusa, Nobuyuki Isoshima, Koki Yokoyama
  • Publication number: 20240027484
    Abstract: Provided is an automatic analyzer which smoothly discards a used reaction container while preventing space restrictions. The automatic analyzer in this invention includes a housing portion which houses a used container; a hollow discarding cylinder which guides the container to the housing portion in a vertical direction; a container gripping mechanism which grips the container by moving a plurality of gripping pieces close to each other in a horizontal direction and lets the container fall by separating the plural gripping pieces from each other in the horizontal direction; and a control section which controls the container gripping mechanism. A discarding hole in the upper end of the discarding cylinder is formed by a container guide portion for guiding the container and a gripping piece separating portion forming a space for the plural gripping pieces to be separated from each other.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 25, 2024
    Inventors: Koki YOKOYAMA, Takenori OKUSA, Shugo OKABE
  • Publication number: 20230266349
    Abstract: To provide a reagent cooler reduced in size as compared with that in the related art by reducing a thickness of a heat insulation material of the reagent cooler, and an automated analyzer including the reagent cooler. In the reagent cooler of the automated analyzer, a vacuum heat insulation material is disposed in a periphery (on a side surface, or/and upper and lower portions) of a cooling jacket of the reagent cooler. Then, an end portion of the vacuum heat insulation material is disposed at a position shifted from upper and lower end portions and a side surface end portion of the cooling jacket and a distance between the end portion of the vacuum heat insulation material and the cooling jacket is taken as much as possible.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 24, 2023
    Inventors: Sunao FUNAKOSHI, Takenori OKUSA, Nobuyuki ISOSHIMA, Koki YOKOYAMA
  • Publication number: 20230102788
    Abstract: Provided is an automatic analysis device that can suppress the occurrence of condensation in a reagent cool box and can immediately drain the condensation water generated by introducing outside air. In an automatic analysis device including a reagent cool box that stores a plurality of reagent vessels while keeping the reagent vessels cool, the reagent cool box includes a drain for discharging the condensation water generated inside the reagent cool box, and an outside air introduction path that guides air outside the reagent cool box to the inside, wherein the outside air introduction path is provided along a bottom surface of the reagent cool box, and an outside air discharge port is formed toward an upper opening unit of the drain.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 30, 2023
    Applicant: HITACHI HIGH-TECH CORPORATION
    Inventors: Koki YOKOYAMA, Takenori OKUSA, Nobuyuki ISOSHIMA
  • Publication number: 20220214369
    Abstract: Provided is an automatic analysis device capable of adjusting the temperature of a plurality of portions requiring temperature control with less power consumption as a whole.
    Type: Application
    Filed: May 19, 2020
    Publication date: July 7, 2022
    Applicant: HITACHI HIGH-TECH CORPORATION
    Inventors: Sunao FUNAKOSHI, Takenori OKUSA, Nobuyuki ISOSHIMA, Koki YOKOYAMA
  • Publication number: 20220187285
    Abstract: Provided is an automatic analyzer to control a temperature of a reagent supplied to a magnetic separator with high accuracy. The automatic analyzer includes a magnetic separator that separates a magnetic component and a non-magnetic component from liquid obtained by reacting a sample with a first reagent, a storage unit that accommodates a second reagent, a pipe used to supply the second reagent to the magnetic separator, and a heat exchanger that adjusts a temperature around the pipe. It is preferable that the heat exchanger includes a heat absorption and dissipation unit and a fan that blows air heat-exchanged by the heat absorption and dissipation unit, and the air blown from the fan is blown onto the pipe.
    Type: Application
    Filed: February 25, 2020
    Publication date: June 16, 2022
    Inventors: Koki YOKOYAMA, Takenori OKUSA
  • Patent number: 11300488
    Abstract: Temperature uniformity of a reaction liquid in a plurality of reaction containers of an automatic analysis device is maintained by a heat block. A strip-shaped heater heats the heat block, and is wound and attached on an outer circumference of the heat block so that both end regions of the strip-shaped heater are adjacent to each other. The strip-shaped heater includes a heat generating resistor that is heated by applying an electric current, an insulating film sandwiching the heat generating resistor, and first and second electrical feed lines that are attached to both end portions of the heat generating resistor and supply power to the heat generating resistor. The width of the heat generating resistor in both end regions of the strip-shaped heater is formed to be narrower than the width of the heat generating resistor in the other region thereof.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: April 12, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Koki Yokoyama, Nobuyuki Isoshima, Takenori Okusa, Shigeyuki Sasaki, Michiharu Watanabe
  • Publication number: 20220057419
    Abstract: The invention provides an automatic analyzer capable of closing a lid of a container containing a reagent or a specimen without wearing an upper surface of the lid even when the lid fails to close. The automatic analyzer includes a container accommodation portion that has a lid openable and closable by a rotation fulcrum and accommodates a container containing a reagent or a specimen, and a lid closing guide portion that closes the lid by moving relative to the container accommodation portion, wherein the lid closing guide portion is in contact with an edge of the lid to close the lid.
    Type: Application
    Filed: January 9, 2020
    Publication date: February 24, 2022
    Inventors: Daisuke KANAI, Koki YOKOYAMA, Takenori OKUSA
  • Publication number: 20210382078
    Abstract: An automatic analysis device includes a processing unit 3 which performs the treatment on a specimen before analysis of the specimen, supply equipment which supplies a reagent to a reaction vessel 11 disposed in the processing unit 3, a liquid temperature adjusting unit 1 which adjusts a temperature of the reagent supplied to the reaction vessel 11 by the supply equipment, a control unit 201, and a first temperature detection unit 4 which detects at least one temperature of a temperature of the air within the processing unit 3 and a temperature of the reagent supplied to the reaction vessel 11, in which the liquid temperature adjusting unit 1 and the control unit 201 execute temperature adjustment of the reagent based on a first temperature detected by the first temperature detection unit 4.
    Type: Application
    Filed: October 9, 2019
    Publication date: December 9, 2021
    Inventors: Sunao FUNAKOSHI, Takenori OKUSA, Nobuyuki ISOSHIMA, Koki YOKOYAMA
  • Publication number: 20210302457
    Abstract: Provided is an automated analyzer comprising a temperature regulator that can be made more compact in size while maintaining high-precision temperature regulation. In a temperature-regulating unit (20) of the automated analyzer, a first chemical reservoir (1) is constituted by a large-diameter spiral-shaped pipe, and a second chemical reservoir (2) is constituted by a large-diameter chemical reservoir container. The first chemical reservoir (1), which is positioned upstream of the second chemical reservoir (2), has an internal capacity that is set so as to be greater than the volume of a single discharge of each of syringe pumps (29, 30, 31), and the second chemical reservoir (2) also has an internal capacity (volume) that is set so as to be greater than the volume of a single discharge of each of the respective syringe pumps (29, 30, 31).
    Type: Application
    Filed: June 24, 2019
    Publication date: September 30, 2021
    Inventors: Sunao FUNAKOSHI, Takenori OKUSA, Nobuyuki ISOSHIMA, Koki YOKOYAMA
  • Publication number: 20190376883
    Abstract: Temperature uniformity of a reaction liquid in a plurality of reaction containers of an automatic analysis device is maintained by a heat block. A strip-shaped heater heats the heat block, and is wound and attached on an outer circumference of the heat block so that both end regions of the strip-shaped heater are adjacent to each other. The strip-shaped heater includes a heat generating resistor that is heated by applying an electric current, an insulating film sandwiching the heat generating resistor, and first and second electrical feed lines that are attached to both end portions of the heat generating resistor and supply power to the heat generating resistor. The width of the heat generating resistor in both end regions of the strip-shaped heater is formed to be narrower than the width of the heat generating resistor in the other region thereof.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 12, 2019
    Inventors: Koki YOKOYAMA, Nobuyuki ISOSHIMA, Takenori OKUSA, Shigeyuki SASAKI, Michiharu WATANABE