Patents by Inventor Shigeki Iwanaga

Shigeki Iwanaga 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: 10533217
    Abstract: A sample analyzing method includes: denaturing DNA by heating a measurement specimen; bleaching the measurement specimen to inhibit autofluorescence from the measurement specimen; binding a fluorescent dye to a test substance in the measurement specimen; and capturing an image of fluorescence originated from the fluorescent dye by irradiating the measurement specimen with light. The DNA denaturation treatment is performed before the bleaching.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: January 14, 2020
    Assignee: SYSMEX CORPORATION
    Inventors: Takuya Kubo, Shigeki Iwanaga
  • Publication number: 20190162954
    Abstract: An optical device comprises a shared phase modulation mask configured to impart a first phase modulation to light of a first wavelength, and imparts a second phase modulation to light of a second wavelength, an irradiation optical system configured to cause the light of the first wavelength and the light of the second wavelength to enter the same incident region in the phase modulation mask, and a light collecting optical system configured to collect the light of the first phase-modulated first wavelength and the light of the second phase-modulated second wavelength to form an image corresponding to a point spread function.
    Type: Application
    Filed: January 14, 2019
    Publication date: May 30, 2019
    Inventors: Masaya OKADA, Shigeki IWANAGA
  • Publication number: 20190128793
    Abstract: A cell detection method and a cell detection system capable of performing target cell detection satisfactorily without interference and reducing the time required for detection of target cells are provided. The cell detection method includes a separation step of step S1 to obtain a sample containing target cells by removing at least a part of the non-target cells from a biological sample including target cells and non-target cells based on a difference in forces acting on target cells and non-target cells; a concentration step of step S3 of obtaining a measurement sample having a target cell concentration increased from the sample containing target cells; a detection of step S4 of detecting target cells by subjecting the measurement sample to an imaging flow cytometer.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 2, 2019
    Inventors: Kentaro SHIRAI, Yusuke TAKAHASHI, Masatoshi YANAGIDA, Shigeki IWANAGA, Tomokazu YOSHIDA, Yuichi IJIRI
  • Patent number: 10222612
    Abstract: An optical device comprises a shared phase modulation mask configured to impart a first phase modulation to light of a first wavelength, and imparts a second phase modulation to light of a second wavelength, an irradiation optical system configured to cause the light of the first wavelength and the light of the second wavelength to enter the same incident region in the phase modulation mask, and a light collecting optical system configured to collect the light of the first phase-modulated first wavelength and the light of the second phase-modulated second wavelength to form an image corresponding to a point spread function.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: March 5, 2019
    Assignee: SYSMEX CORPORATION
    Inventors: Masaya Okada, Shigeki Iwanaga
  • Publication number: 20190033291
    Abstract: Disclosed is a cell imaging method including: forming a light sheet with respect to a flow cell; causing a measurement sample containing a plurality of cells to flow in the flow cell; and receiving lights generated from the plurality of cells passing through the light sheet, by an imaging device via an element configured to extend a depth of focus, and taking images of the plurality of cells by the imaging device.
    Type: Application
    Filed: January 30, 2018
    Publication date: January 31, 2019
    Inventors: Masaya OKADA, Shigeki IWANAGA
  • Publication number: 20180299437
    Abstract: Disclosed is a method for obtaining information of a test substance, the method including: forming a complex by causing a capture substance to bind to a test substance in a specimen; selectively collecting at least the complex from the specimen; immobilizing the complex collected from the specimen, onto a base plate; and obtaining information regarding a structure of the test substance from the complex immobilized on the base plate.
    Type: Application
    Filed: April 12, 2018
    Publication date: October 18, 2018
    Inventors: Kenji AKAMA, Toshihiro WATANABE, Masaya OKADA, Kazuto YAMASHITA, Akshay GANGULY, Shigeki IWANAGA
  • Publication number: 20180074308
    Abstract: Disclosed is a microscope device that includes: a sample placement unit on which a sample is set; an imaging unit configured to take an image of the sample that is set on the sample placement unit; a case in which the sample placement unit is provided and the imaging unit is disposed; a display unit configured to display the image taken by the imaging unit; and a moving unit, provided integrally with the display unit, configured to be movable relative to the sample placement unit.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 15, 2018
    Inventors: Masaya OKADA, Shigeki IWANAGA
  • Publication number: 20180021219
    Abstract: A blood collection device including a flow path to flow blood by capillary action capable of collecting a large amount of blood is provided. The blood collection device includes an introduction inlet 23 for introducing the blood of the subject M, a substrate 20 connected to the introduction inlet 23 and including a flow path 25 to flow the blood by capillary action, and a cooling body 30 for cooling the flow path 25.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 25, 2018
    Inventors: Ayato TAGAWA, Junko KOJIMA, Nobuyasu HORI, Kenji AKAMA, Masaya OKADA, Kunpeng CAI, Samiko HOSOYA, Shigeki IWANAGA
  • Publication number: 20170362553
    Abstract: Provided is a cell analyzer including: a light source unit configured to apply light to test cells each containing first substances which are bound to first fluorescent dyes and which serve as an index for therapeutic strategy judgement; an image capturing unit configured to capture an image of fluorescence caused by the light; a processing unit configured to process the image obtained by the image capturing unit; and a display unit configured to display a process result obtained by the processing unit, wherein the processing unit obtains a first image by performing an inactivation process of quenching the first fluorescent dyes, an activation process of activating a part of the first fluorescent dyes that have been quenched, and an image capturing process of capturing, by means of the image capturing unit, an image of the fluorescence by applying light from the light source unit to each test cell; extracts bright points based on the first fluorescent dyes on the basis of the first image; classifies the extra
    Type: Application
    Filed: September 5, 2017
    Publication date: December 21, 2017
    Inventors: Kanako MASUMOTO, Takuya KUBO, Shigeki IWANAGA, Masaya OKADA
  • Publication number: 20170261744
    Abstract: An optical device comprises a shared phase modulation mask configured to impart a first phase modulation to light of a first wavelength, and imparts a second phase modulation to light of a second wavelength, an irradiation optical system configured to cause the light of the first wavelength and the light of the second wavelength to enter the same incident region in the phase modulation mask, and a light collecting optical system configured to collect the light of the first phase-modulated first wavelength and the light of the second phase-modulated second wavelength to form an image corresponding to a point spread function.
    Type: Application
    Filed: March 9, 2017
    Publication date: September 14, 2017
    Inventors: Masaya OKADA, Shigeki IWANAGA
  • Publication number: 20170082531
    Abstract: A particle imaging device comprises a flow cell, a light source, an irradiation optical system configured to form a light sheet on the flow cell, a light collecting optical system and an imaging element. The sheet surface of the light sheet is perpendicular to the exterior side surface of the flow cell to which the light is entered from the light source. The sheet surface of the light sheet is inclined at a predetermined angle that is not perpendicular to the flow direction of the sample.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 23, 2017
    Inventors: Masaya OKADA, Shigeki IWANAGA
  • Publication number: 20160281151
    Abstract: A sample analyzing method includes: denaturing DNA by heating a measurement specimen; bleaching the measurement specimen to inhibit autofluorescence from the measurement specimen; binding a fluorescent dye to a test substance in the measurement specimen; and capturing an image of fluorescence originated from the fluorescent dye by irradiating the measurement specimen with light. The DNA denaturation treatment is performed before the bleaching.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Applicant: SYSMEX CORPORATION
    Inventors: Takuya KUBO, Shigeki IWANAGA
  • Patent number: 9157884
    Abstract: In order to provide a method of electrochemically detecting a target substance, a method of electrochemically detecting an analyte, and a detection set which have a theoretical advantage in the measurement sensitivity obtained by a conventional electrochemical detection method using a working electrode with a trapping substance immobilized, can reuse the working electrode, and can detect an analyte regardless of the size thereof, there is provided a method including: attracting the target substance containing a labeling substance in a liquid sample to a working electrode in which a trapping substance for trapping the target substance containing a labeling substance is not present; and electrochemically detecting the target substance containing a labeling substance.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: October 13, 2015
    Assignee: SYSMEX CORPORATION
    Inventors: Masayoshi Seike, Nobuyasu Hori, Seigo Suzuki, Shigeki Iwanaga, Hiroya Kirimura
  • Patent number: 9157885
    Abstract: The present invention provides a method for electrochemically detecting a target substance and a method for electrochemically detecting an analyte using a probe holding substrate with a probe for trapping a target substance or an analyte held on the substrate body as well as a test chip and a detection set using the above detection methods.
    Type: Grant
    Filed: September 24, 2011
    Date of Patent: October 13, 2015
    Assignee: SYSMEX CORPORATION
    Inventors: Shigeki Iwanaga, Hiroya Kirimura
  • Patent number: 8920626
    Abstract: A sample substance S is captured by a capture substance 10 which is immobilized on a working electrode body 161 to provide a method of electrochemically detecting a sample substance capable of detecting the sample substance with high sensitivity. A complex which includes, on a soluble carrier 21, a sample substance S and a labeled binder 20 that has a modified labeled substance 23 containing a labeled substance 20 bound to modified labeled substance 23 containing a labeled substance 24 and a binder 22 that binds to the sample substance S, formed on the working electrode 161. The soluble carrier 21 is dissolved, and the modified labeled substance 23 is attracted to the working electrode 161.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: December 30, 2014
    Assignee: Sysmex Corporation
    Inventors: Seigo Suzuki, Masayoshi Seike, Shigeki Iwanaga, Nobuyasu Hori, Hiroya Kirimura
  • Publication number: 20140291166
    Abstract: A method for electrochemically detecting an analyte contained in a sample using a working electrode and a counter electrode, comprising: allowing an electrolyte solution which contains a solution prepared by dissolving an imidazolium iodide compound in a protic solvent to be into contact with the working electrode and the counter electrode; and electrochemically detecting the analyte contained in the sample in the presence of the electrolyte solution is disclosed. A kit to be used for the method for electrochemically detecting an analyte is also disclosed.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: SYSMEX CORPORATION
    Inventors: Fumiya FUTAMATSU, Hiroya KIRIMURA, Shigeki IWANAGA, Seigo SUZUKI, Nobuyasu HORI, Yuichi YASUDA
  • Publication number: 20120267258
    Abstract: In order to provide a method for electrochemically detecting an analyte which can detect an analyte with high detection sensitivity, when detecting an analyte S trapped on a working electrode, a label binding substance 90 in which a labeling substance 93 and a first binding substance 92 which traps the analyte S are at least retained on a support 91 composed of polypeptide is brought into contact with the analyte. Alternatively, a complex containing the analyte S and a label binding substance 290 in which a labeling substance 293 is retained on a binding substance 291 which binds to the analyte S via a modulator 292 is formed. Then, the labeling substance present on the working electrode is electrochemically detected.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicants: NARA INSTITUTE OF SCIENCE AND TECHNOLOGY, SYSMEX CORPORATION
    Inventors: Yukiharu URAOKA, Bin Zheng, Seigo SUZUKI, Hiroya KIRIMURA, Masayoshi SEIKE, Shigeki IWANAGA, Nobuyasu HORI
  • Publication number: 20120161268
    Abstract: To provide an electrode and working electrode substrate capable of detecting a sample substance, and a manufacturing method capable of producing the electrode by simply operations, the present invention provides, in a photocurrent detection electrode, an adhesive layer containing linker molecules interposed between an electrode body constituted by a semiconductor for receiving electrons released from a test substance by photoexcitation, and a metal layer constituted by a metal.
    Type: Application
    Filed: December 28, 2011
    Publication date: June 28, 2012
    Applicant: SYSMEX CORPORATION
    Inventors: Shigeki IWANAGA, Seigo SUZUKI, Masayoshi SEIKE, Nobuyasu HORI, Hiroya KIRIMURA
  • Publication number: 20120132543
    Abstract: A sample substance S is captured by a capture substance 10 which is immobilized on a working electrode body 161 to provide a method of electrochemically detecting a sample substance capable of detecting the sample substance with high sensitivity. A complex which includes, on a soluble carrier 21, a sample substance S and a labeled binder 20 that has a modified labeled substance 23 containing a labeled substance 20 bound to modified labeled substance 23 containing a labeled substance 24 and a binder 22 that binds to the sample substance S, formed on the working electrode 161. The soluble carrier 21 is dissolved, and the modified labeled substance 23 is attracted to the working electrode 161.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 31, 2012
    Applicant: SYSMEX CORPORATION
    Inventors: Seigo SUZUKI, Masayoshi SEIKE, Shigeki IWANAGA, Nobuyasu HORI, Hiroya KIRIMURA
  • Patent number: D827008
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: August 28, 2018
    Assignee: SYSMEX CORPORATION
    Inventors: Masaya Okada, Fumie Shibata, Shigeki Iwanaga, Masayuki Seki