Patents by Inventor Toshikatsu Fukuju

Toshikatsu Fukuju 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: 11268954
    Abstract: An immunoassay apparatus may include: a sample dispenser part that dispenses a sample into a first reaction container; a reagent dispenser part that dispenses, into the first reaction container: a solid-phase reagent containing a solid-phase carrier; a labeled reagent; and a releasing reagent that releases, from the solid-phase carrier, an immune complex including a target substance and a labeled substance; a measurement part that measures a signal based on the labeled substance in the immune complex in a second reaction container; a container supply part that stores a plurality of reaction containers; a transfer part that transfers the first reaction container so that the sample dispenser part and the reagent dispenser part perform a dispensing operation to the first reaction container, and that transfers the second reaction container so that the immune complex dispended from the first reaction container is dispensed into the second container.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: March 8, 2022
    Assignee: SYSMEX CORPORATION
    Inventors: Toshiyuki Sato, Toshikatsu Fukuju, Shuhei Kaneko, Atsushi Aoki, Tomohiro Okuzaki, Yasuhiro Takeuchi, Yutaka Kawamoto
  • Publication number: 20200256868
    Abstract: An immunoassay apparatus may include: a sample dispenser part that dispenses a sample into a first reaction container; a reagent dispenser part that dispenses, into the first reaction container: a solid-phase reagent containing a solid-phase carrier; a labeled reagent; and a releasing reagent that releases, from the solid-phase carrier, an immune complex including a target substance and a labeled substance; a measurement part that measures a signal based on the labeled substance in the immune complex in a second reaction container; a container supply part that stores a plurality of reaction containers; a transfer part that transfers the first reaction container so that the sample dispenser part and the reagent dispenser part perform a dispensing operation to the first reaction container, and that transfers the second reaction container so that the immune complex dispended from the first reaction container is dispensed into the second container.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 13, 2020
    Applicant: SYSMEX CORPORATION
    Inventors: Toshiyuki SATO, Toshikatsu FUKUJU, Shuhei KANEKO, Atsushi AOKI, Tomohiro OKUZAKI, Yasuhiro TAKEUCHI, Yutaka KAWAMOTO
  • Patent number: 10648973
    Abstract: An immunoassay apparatus may include: a sample dispenser part that dispenses a sample into a first reaction container; a reagent dispenser part that dispenses, into the first reaction container,: a solid-phase reagent containing a solid-phase carrier; a labeled reagent; and a releasing reagent that releases, from the solid-phase carrier, an immune complex including a target substance and a labeled substance; a measurement part that measures a signal based on the labeled substance in the immune complex in a second reaction container; a container supply part that stores a plurality of reaction containers; a transfer part that transfers the first reaction container so that the sample dispenser part and the reagent dispenser part perform a dispensing operation to the first reaction container, and that transfers the second reaction container so that the immune complex dispended from the first reaction container is dispensed into the second container.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 12, 2020
    Assignee: SYSMEX CORPROATION
    Inventors: Toshiyuki Sato, Toshikatsu Fukuju, Shuhei Kaneko, Atsushi Aoki, Tomohiro Okuzaki, Yasuhiro Takeuchi, Yutaka Kawamoto
  • Patent number: 9889443
    Abstract: A sample analyzer including a reagent reservoir configured to store a plurality of reagent containers; a first reagent dispenser configured to aspirate reagent of a first type from the reagent reservoir and dispense the aspirated reagent into a reaction container disposed at a first dispensing position; a second reagent dispenser configured to aspirate reagent of a second type from the reagent reservoir and dispense the aspirated reagent into a reaction container disposed at a second dispensing position; and a support member configured to support the first and the second reagent dispensers; wherein the first and the second reagent dispensers are supported by the support member so as to be movable independently of each other between each dispensing position and the reagent reservoir is disclosed. A sample analyzing method executed by a sample analyzer is also disclosed.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: February 13, 2018
    Assignee: SYSMEX CORPORATION
    Inventors: Toshikatsu Fukuju, Masanori Imazu, Masaki Shiba
  • Publication number: 20180024128
    Abstract: An immunoassay apparatus may include: a sample dispenser part that dispenses a sample into a first reaction container; a reagent dispenser part that dispenses, into the first reaction container,: a solid-phase reagent containing a solid-phase carrier; a labeled reagent; and a releasing reagent that releases, from the solid-phase carrier, an immune complex including a target substance and a labeled substance; a measurement part that measures a signal based on the labeled substance in the immune complex in a second reaction container; a container supply part that stores a plurality of reaction containers; a transfer part that transfers the first reaction container so that the sample dispenser part and the reagent dispenser part perform a dispensing operation to the first reaction container, and that transfers the second reaction container so that the immune complex dispended from the first reaction container is dispensed into the second container.
    Type: Application
    Filed: September 29, 2017
    Publication date: January 25, 2018
    Applicant: SYSMEX CORPORATION
    Inventors: Toshiyuki SATO, Toshikatsu FUKUJU, Shuhei KANEKO, Atsushi AOKI, Tomohiro OKUZAKI, Yasuhiro TAKEUCHI, Yutaka KAWAMOTO
  • Patent number: 9874511
    Abstract: An analyzer including a housing with a mutually adjacent first side and a second side, and an annular reagent holding part disposed within the housing is disclosed. An immunoassay method for measuring antigen or antibody of a measurement object contained in a sample and performed by the analyzer is also disclosed.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: January 23, 2018
    Assignee: SYSMEX CORPORATION
    Inventors: Toshikatsu Fukuju, Yusuke Matsumoto
  • Publication number: 20170059562
    Abstract: A processing mechanism unit forms an immune complex containing the test substance in the sample and a labeled substance contained in a labeled reagent on a magnetic particle contained in a solid-phase reagent. The unit liberates the immune complex from the magnetic particle with a liberating reagent. A transfer unit includes a first holder to hold a first reaction chamber, and transfers the first reaction chamber received in the first holder at a first position to a second position while magnetically collecting the magnetic particle in the first reaction chamber by a magnetic source. A dispenser aspirates a liquid phase containing the liberated immune complex in the first reaction chamber transferred to the second position, and dispenses the liquid phase into a second reaction chamber. A detector detects a signal based on a label contained in the immune complex in the liquid phase dispensed into the second reaction chamber.
    Type: Application
    Filed: August 19, 2016
    Publication date: March 2, 2017
    Applicant: SYSMEX CORPORATION
    Inventors: Yutaka KAWAMOTO, Toshikatsu FUKUJU
  • Patent number: 9581608
    Abstract: A sample analyzer transports a first rack and a second rack, the first rack including a first number of supporters for supporting containers that contain biological samples of subjects, and the second rack including a second number of supporters for supporting containers that contain standard samples. The sample analyzer determines whether a transport object is the first rack or the second rack. When it has been determined that the transport object is the second rack, the sample analyzer performs a transporting operation according to the second rack and measure the standard samples in the containers supported by the second rack in a predetermined order, and prepares a calibration curve used for analyzing a measurement result of a biological sample, based on a plurality of measurement results of the standard samples.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: February 28, 2017
    Assignee: Sysmex Corporation
    Inventors: Makoto Ueda, Yuji Wakamiya, Toshikatsu Fukuju, Kazunori Mototsu
  • Patent number: 9228946
    Abstract: An analyzer comprises a dispenser which dispenses a liquid into a container, a detector which comprises a phototransmitter which emits light to the container and a photoreceiver which receives light from the phototransmitter, a moving unit which changes a relative position between the container and the detector, and a controller which determines whether an amount of the liquid in the container is within a predetermined range, based on outputs from the detector at a plurality of the relative positions.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: January 5, 2016
    Assignee: SYSMEX CORPORATION
    Inventors: Kazutoshi Tokunaga, Toshikatsu Fukuju, Tomoyuki Nishida, Hiroyuki Nishikawa, Keiji Tachibana
  • Publication number: 20150276580
    Abstract: An analyzer including a housing with a mutually adjacent first side and a second side, and an annular reagent holding part disposed within the housing is disclosed. An immunoassay method for measuring antigen or antibody of a measurement object contained in a sample and performed by the analyzer is also disclosed.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Toshikatsu FUKUJU, Yusuke MATSUMOTO
  • Publication number: 20150273464
    Abstract: A sample analyzer including a reagent reservoir configured to store a plurality of reagent containers; a first reagent dispenser configured to aspirate reagent of a first type from the reagent reservoir and dispense the aspirated reagent into a reaction container disposed at a first dispensing position; a second reagent dispenser configured to aspirate reagent of a second type from the reagent reservoir and dispense the aspirated reagent into a reaction container disposed at a second dispensing position; and a support member configured to support the first and the second reagent dispensers; wherein the first and the second reagent dispensers are supported by the support member so as to be movable independently of each other between each dispensing position and the reagent reservoir is disclosed. A sample analyzing method executed by a sample analyzer is also disclosed.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Toshikatsu FUKUJU, Masanori IMAZU, Masaki SHIBA
  • Patent number: 8114347
    Abstract: A pipette chip supply device for supplying a pipette chip for suctioning liquid, the pipette chip supply device comprising: a chip accommodating section for accommodating pipette chips; a conveying section for conveying the pipette chips supplied from the chip accommodating section; and a static eliminator for removing electrification charge of the pipette chips.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: February 14, 2012
    Assignee: Sysmex Corporation
    Inventors: Toshihiro Ootani, Kazuya Fukuda, Kazunori Mototsu, Toshikatsu Fukuju, Masayuki Nakagawa
  • Patent number: 7988914
    Abstract: A sample analyzer includes a liquid aspirator to be stuck into the closed container for aspirating a sample from a closed container; a preparing section for preparing an analysis sample using the aspirated sample; and an analyzing section for analyzing the prepared analysis sample; the liquid aspirator including an elongated pipe, the pipe having a liquid flow path extending therein and a plurality of communicating sections provided in an outer surface thereof, at least one of the communicating sections communicating between an inside and an outside of the container when the pipe is stuck into the container.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 2, 2011
    Assignee: Sysmex Corporation
    Inventors: Toshikatsu Fukuju, Takaaki Nagai, Shuhei Kaneko, Hidenari Takaoka, Noriyoshi Yoshida, Takashi Yoshida
  • Patent number: 7919044
    Abstract: A sample analyzer includes a liquid aspirator to be stuck into the closed container for aspirating a sample from a closed container; a preparing section for preparing an analysis sample using the aspirated sample; and an analyzing section for analyzing the prepared analysis sample; the liquid aspirator including an elongated pipe, the pipe having a liquid flow path extending therein and a plurality of communicating sections provided in an outer surface thereof, at least one of the communicating sections communicating between an inside and an outside of the container when the pipe is stuck into the container.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: April 5, 2011
    Assignee: Sysmex Corporation
    Inventors: Toshikatsu Fukuju, Takaaki Nagai, Shuhei Kaneko, Hidenari Takaoka, Noriyoshi Yoshida, Takashi Yoshida
  • Publication number: 20100316542
    Abstract: The present invention is to present a disposable pipette tip used in a dispensing device, comprising: an attachment section for being attached to the dispensing device; and a liquid containing section for containing a liquid aspirated by the dispensing device, which is continually located to the attachment section and comprises a first part and a second part being continually located to the first part on the attachment section side, wherein the first part comprises a tip portion, an intermediate portion and a stepped portion, the tip portion including a distal end of the pipette tip, the intermediate portion continually located to the tip portion and the second part, the tip portion having an external diameter that decreases toward the distal end, and the intermediate portion having an external diameter that decreases toward the tip portion; the stepped portion is formed at a connecting position of the tip portion and the intermediate portion such that the external diameter of the intermediate portion at the
    Type: Application
    Filed: June 11, 2010
    Publication date: December 16, 2010
    Applicant: SYSMEX CORPORATION
    Inventors: Kazunori MOTOTSU, Toshikatsu Fukuju, Hiroto Toyoshima
  • Patent number: 7790114
    Abstract: A reagent-containing assembly comprising: a reagent-accommodating section comprising an opening sealed by a seal member; and a seal-opening section comprising a breaking portion for breaking the seal member, and a suction hole configured to provide access to the reagent-accommodating section; wherein the reagent-accommodating section and the seal-opening section are configured for detachable engagement with each other is disclosed.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: September 7, 2010
    Assignee: Sysmex Corporation
    Inventors: Kazuya Fukuda, Toshikatsu Fukuju, Kazunori Mototsu, Motoki Koyama, Toshihiro Ootani
  • Publication number: 20080219886
    Abstract: A sample analyzer includes a liquid aspirator to be stuck into the closed container for aspirating a sample from a closed container; a preparing section for preparing an analysis sample using the aspirated sample; and an analyzing section for analyzing the prepared analysis sample; the liquid aspirator including an elongated pipe, the pipe having a liquid flow path extending therein and a plurality of communicating sections provided in an outer surface thereof, at least one of the communicating sections communicating between an inside and an outside of the container when the pipe is stuck into the container.
    Type: Application
    Filed: February 27, 2008
    Publication date: September 11, 2008
    Inventors: Toshikatsu FUKUJU, Takaaki Nagai, Shuhei Kaneko, Hidenari Takaoka, Noriyoshi Yoshida, Takashi Yoshida
  • Publication number: 20080085222
    Abstract: A reagent-containing assembly comprising: a reagent-accommodating section comprising an opening sealed by a seal member; and a seal-opening section comprising a breaking portion for breaking the seal member, and a suction hole configured to provide access to the reagent-accommodating section; wherein the reagent-accommodating section and the seal-opening section are configured for detachable engagement with each other is disclosed.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 10, 2008
    Inventors: Kazuya Fukuda, Toshikatsu Fukuju, Kazunori Mototsu, Motoki Koyama, Toshihiro Ootani
  • Publication number: 20080063568
    Abstract: A sample analyzer includes a liquid aspirator to be stuck into the closed container for aspirating a sample from a closed container; a preparing section for preparing an analysis sample using the aspirated sample; and an analyzing section for analyzing the prepared analysis sample; the liquid aspirator including an elongated pipe, the pipe having a liquid flow path extending therein and a plurality of communicating sections provided in an outer surface thereof, at least one of the communicating sections communicating between an inside and an outside of the container when the pipe is stuck into the container.
    Type: Application
    Filed: October 26, 2007
    Publication date: March 13, 2008
    Inventors: Toshikatsu Fukuju, Takaaki NAGAI, Shuhei Kaneko, Hidenari Takaoka, Noriyoshi Yoshida, Takashi Yoshida
  • Publication number: 20070231215
    Abstract: The present invention is to present a disposable pipette tip that can easily prevent a tight fit with another pipette tip without providing a separating mechanism in a supplying apparatus. The disposable pipette tip comprises: an attachment section for being attached to the dispensing device; and a liquid containing section for containing a liquid aspirated by the dispensing device, which is continually located to the attachment section, has a tapered distal end and comprises a tight fit preventing part which is located adjacent to the tapered distal end and prevents a tight fit with another pipette tip.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 4, 2007
    Applicant: SYSMEX CORPORATION
    Inventors: Kazunori Mototsu, Toshikatsu Fukuju, Hiroto Toyoshima