Patents by Inventor Yoshikazu Okamura

Yoshikazu Okamura 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: 11125742
    Abstract: Provided is a non-specific reaction inhibitor for achieving the accurate detection and quantitation of a trace component (a target substance) contained in a sample, in an immunoassay, by simply and effectively inhibiting a non-specific reaction associated with the measurement. The non-specific reaction inhibitor comprises a substance of the formula I: wherein R1 and R2 together form a double bond between carbons, to which they are respectively bonded directly, or R1 is a hydrogen atom and R2 is a group formed by removing H from an SH-group-containing compound, B is a support, and L is a spacer arm portion.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: September 21, 2021
    Assignee: LSI MEDIENCE CORPORATION
    Inventors: Yoshikazu Okamura, Shigeru Tashiro
  • Patent number: 11041864
    Abstract: Disclosed is a prediction method for the prognosis of sepsis comprising measuring an sCD14-ST level in a sample. sCD14-ST, to be measured in the present invention, is a marker superior to procalcitonin, known as a marker to predict the prognosis in sepsis patients.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: June 22, 2021
    Assignees: LSI MEDIENCE CORPORATION, MOCHIDA PHARMACEUTICAL CO., LTD.
    Inventors: Takeshi Matsuya, Yoshikazu Okamura, Ralf Thomae, Eberhard Spanuth, Boris Ivandic, Kamon Shirakawa, Shigeatsu Endo
  • Patent number: 10634681
    Abstract: Disclosed are a method for immunologically measuring cardiac troponin in a biological sample, in which the formation of an immunological complex of cardiac troponin with an antibody specifically binding thereto is performed in the presence of a divalent cation at 4 mmol/L or more; and a kit for measuring cardiac troponin, comprising an antibody specifically binding to cardiac troponin, and a buffer containing a divalent cation at a high concentration. According to the method or the kit, a stable and highly-accurate measured value can be obtained without being affected by interfering substances in a specimen regardless of the type of specimen.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: April 28, 2020
    Assignee: LSI MEDIENCE CORPORATION
    Inventor: Yoshikazu Okamura
  • Publication number: 20140193842
    Abstract: Provided is a non-specific reaction inhibitor for achieving the accurate detection and quantitation of a trace component (a target substance) contained in a sample, in an immunoassay, by simply and effectively inhibiting a non-specific reaction associated with the measurement. The non-specific reaction inhibitor comprises a substance of the formula I: wherein R1 and R2 together form a double bond between carbons, to which they are respectively bonded directly, or R1 is a hydrogen atom and R2 is a group formed by removing H from an SH-group-containing compound, B is a support, and L is a spacer arm portion.
    Type: Application
    Filed: June 28, 2012
    Publication date: July 10, 2014
    Applicant: MITSUBISHI CHEMICAL MEDIENCE CORPORATION
    Inventors: Yoshikazu Okamura, Shigeru Tashiro
  • Publication number: 20130330841
    Abstract: Disclosed are a method for immunologically measuring cardiac troponin in a biological sample, in which the formation of an immunological complex of cardiac troponin with an antibody specifically binding thereto is performed in the presence of a divalent cation at 4 mmol/L or more; and a kit for measuring cardiac troponin, comprising an antibody specifically binding to cardiac troponin, and a buffer containing a divalent cation at a high concentration. According to the method or the kit, a stable and highly-accurate measured value can be obtained without being affected by interfering substances in a specimen regardless of the type of specimen.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 12, 2013
    Applicant: Mitsubishi Chemical Medience Corporation
    Inventor: Yoshikazu Okamura
  • Publication number: 20130288276
    Abstract: Disclosed is a prediction method for the prognosis of sepsis comprising measuring an sCD14-ST level in a sample. sCD14-ST, to be measured in the present invention, is a marker superior to procalcitonin, known as a marker to predict the prognosis in sepsis patients.
    Type: Application
    Filed: January 10, 2012
    Publication date: October 31, 2013
    Applicants: MOCHIDA PHARMACEUTICAL CO., LTD., Mitsubishi Chemical Medience Corporation
    Inventors: Takeshi Matsuya, Yoshikazu Okamura, Ralf Thomae, Eberhard Spanuth, Boris Ivandic, Kamon Shirakawa, Shigeatsu Endo
  • Patent number: 8383421
    Abstract: An object of the present invention is to provide a cartridge for automatic measurement used in an automatic measuring device, capable of automatically performing measurement including heat treatment of a sample, and a measuring device using the cartridge. The present invention relates to a cartridge for use in measuring a component to be measured contained in a sample, comprising: at least a heat-treatment well for performing heat treatment of the sample; and a reaction well for reacting the component to be measured in the sample with a material specifically reacting therewith.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: February 26, 2013
    Assignee: Mitsubishi Chemical Medience Corporation
    Inventors: Atsushi Yanagida, Takashi Kurihara, Hiroyuki Yokoi, Atsushi Koyata, Yoshikazu Okamura, Daishi Miyamoto
  • Publication number: 20130011856
    Abstract: An object of the present invention is to provide a cartridge for automatic measurement used in an automatic measuring device, capable of automatically performing measurement including heat treatment of a sample, and a measuring device using the cartridge. The present invention relates to a cartridge for use in measuring a component to be measured contained in a sample, comprising: at least a heat-treatment well for performing heat treatment of the sample; and a reaction well for reacting the component to be measured in the sample with a material specifically reacting therewith.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: MITSUBISHI KAGAKU IATRON, INC.
    Inventors: Atsushi YANAGIDA, Takashi KURIHARA, Hiroyuki YOKOI, Atsushi KOYATA, Yoshikazu OKAMURA, Daishi MIYAMOTO
  • Publication number: 20120309025
    Abstract: An analysis method capable of accurately measuring human sCD14-ST when using a whole blood sample is provided. In the analysis method, human sCD14-ST in a whole blood sample is analyzed within 6 hours of the collection of the sample.
    Type: Application
    Filed: January 28, 2011
    Publication date: December 6, 2012
    Applicant: MOCHIDA PHARMACEUTICAL CO., LTD
    Inventors: Yoshikazu Okamura, Hiroyuki Yokoi
  • Patent number: 7749722
    Abstract: A method for measuring an analyte in a whole blood sample comprising the steps of (1) bringing the whole blood sample into contact with a first substance which is carried on an insoluble carrier and specifically binds to the analyte to be measured and a second substance which is labeled with an alkaline phosphatase and specifically binds to the analyte to be measured, and (2) measuring a resulting complex on the basis of an enzyme reaction of the alkaline phosphatase, the measuring step (2) being carried out in the presence of an inhibitor of endogenous alkaline phosphatases, is disclosed.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: July 6, 2010
    Assignee: Mitsubishi Kagaku Istron, Inc.
    Inventors: Yoshikazu Okamura, Takashi Kurihara, Hiroyuki Yokoi, Junichi Ogawa
  • Publication number: 20070141645
    Abstract: A method for measuring an analyte in a whole blood sample comprising the steps of (1) bringing the whole blood sample into contact with a first substance which is carried on an insoluble carrier and specifically binds to the analyte to be measured and a second substance which is labeled with an alkaline phosphatase and specifically binds to the analyte to be measured, and (2) measuring a resulting complex on the basis of an enzyme reaction of the alkaline phosphatase, the measuring step (2) being carried out in the presence of an inhibitor of endogenous alkaline phosphatases, is disclosed.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 21, 2007
    Applicant: MITSUBISHI KAGAKU IATRON, INC.
    Inventors: Yoshikazu Okamura, Takashi Kurihara, Hiroyuki Yokoi, Junichi Ogawa
  • Publication number: 20060183217
    Abstract: An object of the present invention is to provide a cartridge for automatic measurement used in an automatic measuring device, capable of automatically performing measurement including heat treatment of a sample, and a measuring device using the cartridge. The present invention relates to a cartridge for use in measuring a component to be measured contained in a sample, comprising: at least a heat-treatment well for performing heat treatment of the sample; and a reaction well for reacting the component to be measured in the sample with a material specifically reacting therewith.
    Type: Application
    Filed: January 17, 2006
    Publication date: August 17, 2006
    Applicant: MITSUBISHI KAGAKU IATRON, INC.
    Inventors: Atsushi Yanagida, Takashi Kurihara, Hiroyuki Yokoi, Atsushi Koyata, Yoshikazu Okamura, Daishi Miyamoto