Patents Assigned to On-Chip Biotechnologies Co., Ltd
  • Publication number: 20240091775
    Abstract: One object of the present invention is to provide a method or apparatus for purifying target particles from high-concentration particles in a short time. The above problem can be solved by a method for purifying target particles, characterized in that the method comprises a step of sorting the target particles from a high concentration of non-target particles, wherein the sorting step is repeated for three times or more.
    Type: Application
    Filed: November 28, 2023
    Publication date: March 21, 2024
    Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventors: Kazuo TAKEDA, Masayuki ISHIGE, Yuu FUJIMURA, Takahide INO, Yuji MORISHITA, Kosuke OSAWA, Soichiro TSUDA
  • Publication number: 20230383240
    Abstract: An object of the present invention is to purify and concentrate differentiating cells derived from ES cells, iPS cells, or the like without damaging them.
    Type: Application
    Filed: August 15, 2023
    Publication date: November 30, 2023
    Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventors: Kazuo TAKEDA, Yuu FUJIMURA, Takahide INO, Masayuki ISHIGE, Jin AKAGI
  • Patent number: 11826752
    Abstract: One object of the present invention is to provide a method or apparatus for purifying target particles from high-concentration particles in a short time. The above problem can be solved by a method for purifying target particles, characterized in that the method comprises a step of sorting the target particles from a high concentration of non-target particles, wherein the sorting step is repeated for three times or more.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: November 28, 2023
    Assignee: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventors: Kazuo Takeda, Masayuki Ishige, Yuu Fujimura, Takahide Ino, Yuji Morishita, Kosuke Osawa, Soichiro Tsuda
  • Publication number: 20230295700
    Abstract: A microfluidic nucleic acid detection kit and a detection device are provided. The microfluidic nucleic acid detection kit is provided includes a kit body and a reagent card interconnected. The kit body can slide relative to the reagent card to control the kit to work. The microfluidic nucleic acid detection kit further includes a gas source cavity, a liquid cavity, a nucleic acid amplification cavity, and a gas tail cavity. The gas tail cavity communicates with the nucleic acid amplification cavity through an exhaust gas flow channel. The exhaust gas flow channel is provided with a check valve. The detection device includes the microfluidic nucleic acid detection kit, a first housing, a power module, a display module, a first heating module, and a first detection module. The microfluidic nucleic acid detection kit is removably inserted into the first housing.
    Type: Application
    Filed: May 10, 2022
    Publication date: September 21, 2023
    Applicant: CHENGDU ONE-CHIP BIOTECHNOLOGY CO., LTD.
    Inventors: Zhifeng ZHANG, Jianlong LI
  • Patent number: 11725179
    Abstract: An object of the present invention is to purify and concentrate differentiating cells derived from ES cells, iPS cells, or the like without damaging them.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 15, 2023
    Assignee: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventors: Kazuo Takeda, Yuu Fujimura, Takahide Ino, Masayuki Ishige, Jin Akagi
  • Patent number: 11371984
    Abstract: An apparatus for analyzing particles in a solution includes a unit configured to place a flow cell having a flow path for flowing a sample solution containing the particles; a unit configured to illuminate the sample solution flowing through the flow path of the flow cell; a photodetector that detects a scattered light and/or fluorescence generated from the particles in the sample solution; and a unit configured to analyze the particles based on their signal intensities detected by the photodetector, wherein the flow cell has the flow path formed in a substrate, a reflection plane is formed on the side surface of the flow path, the reflection plane leads the lights generated in the flow path of the flow cell and advancing in the substrate in-plane direction to a specified region of the surface of the flow cell, and the photodetector detects the light exiting from the specified region to the outside.
    Type: Grant
    Filed: April 6, 2019
    Date of Patent: June 28, 2022
    Assignee: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventor: Kazuo Takeda
  • Patent number: 11280792
    Abstract: The object of the present invention is to provide an evaluation method capable of accurately determining a metastasis of cancer, the stage of cancer progression, or the malignancy of cancer.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 22, 2022
    Assignees: ON-CHIP BIOTECHNOLOGIES CO., LTD., SHIZUOKA PREFECTURE
    Inventors: Kazuo Takeda, Namiko Yamashita, Yuu Fujimura, Kaori Nishio, Yasuhiro Koh, Masaru Watanabe, Fumiaki Koizumi, Yuri Uehara
  • Publication number: 20220062905
    Abstract: One object of the present invention is to provide a method or apparatus for purifying target particles from high-concentration particles in a short time. The above problem can be solved by a method for purifying target particles, characterized in that the method comprises a step of sorting the target particles from a high concentration of non-target particles, wherein the sorting step is repeated for three times or more.
    Type: Application
    Filed: August 24, 2021
    Publication date: March 3, 2022
    Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventors: Kazuo TAKEDA, Masayuki ISHIGE, Yuu FUJIMURA, Takahide INO, Yuji MORISHITA, Kosuke OSAWA, Soichiro TSUDA
  • Patent number: 11002660
    Abstract: The present invention provides an apparatus for analyzing particles in a solution including a unit configured to place a flow cell having a flow path for flowing a sample solution containing the particles; a unit configured to illuminate the sample solution flowing through the flow path of the flow cell; a photodetector that detects a scattered light and/or fluorescence generated from the particles in the sample solution; and a unit configured to analyze the particles based on their signal intensities detected by the photodetector, wherein the flow cell has the flow path formed in a substrate, a reflection plane is formed on the side surface of the flow path, the reflection plane leads the lights generated in the flow path of the flow cell and advancing in the substrate in-plane direction to a specified region of the surface of the flow cell, and the photodetector detects the light exiting from the specified region to the outside.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: May 11, 2021
    Assignee: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventor: Kazuo Takeda
  • Publication number: 20200256785
    Abstract: A disposable flow cell formed on a substrate for separating particles from a sample solution includes a sample flow path and a sample reservoir formed on the substrate, wherein the sample flow path is connected to the sample reservoir for introducing the sample solution from the sample reservoir, the sample flow path comprises an illuminating region configured for illumination by an external illumination unit, wherein the sample reservoir is adapted to be airtightly connected to an external constant air pump such that a constant air pressure can be applied to the sample solution by the external constant air pump; and a first branched flow path and a second branched flow path perpendicularly connected, respectively, to both sides of the sample flow path at a location downstream of the illumination region, wherein the first branched flow path comprises a connection port configured for air-tight connection to an external pulse air pump.
    Type: Application
    Filed: May 2, 2020
    Publication date: August 13, 2020
    Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventor: Kazuo Takeda
  • Patent number: 10724938
    Abstract: The object of the present invention is to provide (1) a cell sorter, (2) a flow cytometer capable of detecting sideward scattered light, (3) a method for accurately measuring cell concentration, (4) a method for multicolor staining analysis without a fluorescence correction, and the like, which satisfy requirements that carry-over and cross contamination of samples do not occur.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: July 28, 2020
    Assignee: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventor: Kazuo Takeda
  • Patent number: 10648899
    Abstract: A method for sorting a particle of interest in a solution includes storing a sample solution in a sample solution reservoir and applying a constant pressure to the sample solution; illuminating the sample solution flowing in an illumination region of the sample solution flow path upstream of a branched flow path region, and detecting the particle of interest contained in the sample solution; and upon detecting the particle of interest, opening an electromagnetic valve or electromagnetic valves that are disposed between an air pressure pump and the branched flow path region of the sample solution flow path at a timing that the detected particle of interest reaches the branched flow path region such that a pulse pressure is applied to the branched flow path region to separate the detected particle of interest from the sample solution flow path.
    Type: Grant
    Filed: November 17, 2018
    Date of Patent: May 12, 2020
    Assignee: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventor: Kazuo Takeda
  • Publication number: 20190339189
    Abstract: The object of the present invention is to provide a technique for dispensing cells as single cells. The above problem can be solved by an apparatus for dispensing particles comprising a transparent hollow pipette for dispensing sample liquid containing particles, and an image capturing means, wherein the devise has means for capturing two or more images of the dispensing liquid in the hollow pipette; means for comparing two or more shot images, distinguishing a moved particle-like substance from an unmoved particle-like substance in the image-captured particle-like substances, and identifying the moved particle-like substance as a suspended particle; and means for dispensing a sample liquid containing a target number of suspended particles.
    Type: Application
    Filed: September 15, 2017
    Publication date: November 7, 2019
    Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventors: Kazuo TAKEDA, Yuu FUJIMURA, Masayuki ISHIGE, Takahide INO, Yohsuke BANSHO, Jin AKAGI, Kosuke OSAWA
  • Publication number: 20190234861
    Abstract: An apparatus for analyzing particles in a solution includes a unit configured to place a flow cell having a flow path for flowing a sample solution containing the particles; a unit configured to illuminate the sample solution flowing through the flow path of the flow cell; a photodetector that detects a scattered light and/or fluorescence generated from the particles in the sample solution; and a unit configured to analyze the particles based on their signal intensities detected by the photodetector, wherein the flow cell has the flow path formed in a substrate, a reflection plane is formed on the side surface of the flow path, the reflection plane leads the lights generated in the flow path of the flow cell and advancing in the substrate in-plane direction to a specified region of the surface of the flow cell, and the photodetector detects the light exiting from the specified region to the outside.
    Type: Application
    Filed: April 6, 2019
    Publication date: August 1, 2019
    Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventor: Kazuo Takeda
  • Publication number: 20190154563
    Abstract: A method for sorting a particle of interest in a solution includes storing a sample solution in a sample solution reservoir and applying a constant pressure to the sample solution; illuminating the sample solution flowing in an illumination region of the sample solution flow path upstream of a branched flow path region, and detecting the particle of interest contained in the sample solution; and upon detecting the particle of interest, opening an electromagnetic valve or electromagnetic valves that are disposed between an air pressure pump and the branched flow path region of the sample solution flow path at a timing that the detected particle of interest reaches the branched flow path region such that a pulse pressure is applied to the branched flow path region to separate the detected particle of interest from the sample solution flow path.
    Type: Application
    Filed: November 17, 2018
    Publication date: May 23, 2019
    Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventor: Kazuo Takeda
  • Patent number: 10267721
    Abstract: The present invention provides an apparatus for analyzing particles in a solution including a unit configured to place a flow cell having a flow path for flowing a sample solution containing the particles; a unit configured to illuminate the sample solution flowing through the flow path of the flow cell; a photodetector that detects a scattered light and/or fluorescence generated from the particles in the sample solution; and a unit configured to analyze the particles based on their signal intensities detected by the photodetector, wherein the flow cell has the flow path formed in a substrate, a reflection plane is formed on the side surface of the flow path, the reflection plane leads the lights generated in the flow path of the flow cell and advancing in the substrate in-plane direction to a specified region of the surface of the flow cell, and the photodetector detects the light exiting from the specified region to the outside.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: April 23, 2019
    Assignee: On-Chip Biotechnologies Co., Ltd.
    Inventor: Kazuo Takeda
  • Publication number: 20190078995
    Abstract: The object of the present invention is to provide (1) a cell sorter, (2) a flow cytometer capable of detecting sideward scattered light, (3) a method for accurately measuring cell concentration,(4) a method for multicolor staining analysis without a fluorescence correction, and the like, which satisfy requirements that carry-over and cross contamination of samples do not occur.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 14, 2019
    Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventor: Kazuo TAKEDA
  • Patent number: 10222317
    Abstract: A method for sorting a cell particle in a solution includes steps of preparing an apparatus having a sample solution reservoir formed on a substrate, a main flow path formed in the substrate, a first branched flow path and a second branched flow path, and a downstream flow path; storing a sample solution; applying a constant gas pressure to the sample solution, illuminating the sample solution; determining calculating a delayed timing; and applying a pushing pressure.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: March 5, 2019
    Assignee: On-Chip Biotechnologies Co., Ltd
    Inventor: Kazuo Takeda
  • Publication number: 20190011450
    Abstract: The object of the present invention is to provide an evaluation method capable of accurately determining a metastasis of cancer, the stage of cancer progression, or the malignancy of cancer.
    Type: Application
    Filed: September 6, 2018
    Publication date: January 10, 2019
    Applicants: ON-CHIP BIOTECHNOLOGIES CO., LTD., SHIZUOKA PREFECTURE
    Inventors: Kazuo TAKEDA, Namiko YAMASHITA, Yuu FUJIMURA, Kaori NISHIO, Yasuhiro KOH, Masaru WATANABE, Fumiaki KOIZUMI, Yuri UEHARA
  • Publication number: 20180298324
    Abstract: An object of the present invention is to purify and concentrate differentiating cells derived from ES cells, iPS cells, or the like without damaging them.
    Type: Application
    Filed: May 12, 2016
    Publication date: October 18, 2018
    Applicant: ON-CHIP BIOTECHNOLOGIES CO., LTD.
    Inventors: Kazuo TAKEDA, Yuu FUJIMURA, Takahide INO, Masayuki ISHIGE, Jin AKAGI