Patents by Inventor Takeshi Imoarai

Takeshi Imoarai 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: 8298757
    Abstract: The present invention relates to a method for detecting an avian influenza virus by an immunological assay using an anti-influenza virus antibody being unreactive to human influenza type-A virus subtypes H1, H2 and H3 and a human influenza type-B virus and being reactive to plural subtypes of avian influenza viruses, and an immunochromatographic test tool for use in the method. According to the present invention, an avian influenza virus can be detected specifically, rapidly and in a simple manner, as distinguishing an avian influenza virus from a human influenza virus.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: October 30, 2012
    Assignees: Osaka Prefectural Government, Sysmex Corporation
    Inventors: Kazuo Takahashi, Yoshinobu Okuno, Hiroshi Nishimura, Takeshi Imoarai, Noriyuki Saito, Tomokuni Taniguchi
  • Patent number: 7993935
    Abstract: A test strip for immunochromatography comprising a sample receiving member, a label holding member, and a chromatography membrane is described. The chromatography membrane has a first detection zone and a second detection zone. The second detection zone is formed by utilizing a blocking material and the second substance. A method for producing above the test strip is also described.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: August 9, 2011
    Assignee: Sysmex Corporation
    Inventors: Haruki Yamaguchi, Takehiro Hasegawa, Takeshi Imoarai
  • Patent number: 7642087
    Abstract: An chromatography kit is described, a representative one of which includes: an examination container one end of which has an inlet for receiving a sample, and an chromatography examination strip used by inserting from the inlet into the examination container wherein the examination container comprises a prevention part for preventing from the adherence of the examination strip on the inner wall of the examination container.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: January 5, 2010
    Assignee: Sysmex Corporation
    Inventors: Takeshi Imoarai, Shinya Nagai, Motoi Furutani, Kanako Horisaka
  • Publication number: 20090311667
    Abstract: The present invention relates to a method for detecting an avian influenza virus by an immunological assay using an anti-influenza virus antibody being unreactive to human influenza type-A virus subtypes H1, H2 and H3 and a human influenza type-B virus and being reactive to plural subtypes of avian influenza viruses, and an immunochromatographic test tool for use in the method. According to the present invention, an avian influenza virus can be detected specifically, rapidly and in a simple manner, as distinguishing an avian influenza virus from a human influenza virus.
    Type: Application
    Filed: August 31, 2007
    Publication date: December 17, 2009
    Applicant: Osaka Prefectural Government
    Inventors: Kazuo Takahashi, Yoshinobu Okuno, Hiroshi Nishimura, Takeshi Imoarai, Noriyuki Saito, Tomokuni Taniguchi
  • Publication number: 20090269735
    Abstract: Sample pretreatment solutions for influenza virus tests by immunochromatography are described. Methods detecting influenza virus by immunochromatography using the sample pretreatment solutions and Kits comprising the sample pretreatment solution and an immunochromatographic device are also described.
    Type: Application
    Filed: July 2, 2009
    Publication date: October 29, 2009
    Applicant: SYSMEX CORPORATION
    Inventors: Takeshi IMOARAI, Motoi FURUTANI, Masako Aki
  • Publication number: 20090087926
    Abstract: The invention provides an immunochromatographic test device for detecting a test substance in a sample, comprising a chromatographic membrane carrier; a sample developing member; and a labeling substance holding member; wherein a substance being capable of reacting to a human anti-mouse antibody is held in a member disposed at a position which is more upstream on the basis of the sample developing direction than the chromatographic membrane carrier, as well as an a method for detecting a test substance in a sample by using an immunochromatographic test device and a method for manufacturing an immunochromatographic test device.
    Type: Application
    Filed: August 13, 2008
    Publication date: April 2, 2009
    Applicant: SYSMEX CORPORATION
    Inventors: Takehiro HASEGAWA, Masumi Murakami, Takeshi Imoarai
  • Patent number: 7427511
    Abstract: An immunochromatographic test device of the present invention comprises: a sample receiving member for receiving a sample; a label holding member for holding a labeling substance to bind to an analyte contained in the sample; and a chromatographic membrane having a detection zone at which an immobilization substance to bind to the analyte is immobilized, wherein the sample receiving member disposed to cover the label holding member and in contact with the chromatographic membrane, and the chromatographic membrane is spaced apart from the label holding member.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: September 23, 2008
    Assignee: Sysmex Corporation
    Inventors: Masako Aki, Shinya Nagai, Noriyuki Saito, Takeshi Imoarai
  • Patent number: 7413880
    Abstract: A test kit for immunochromatography comprising a test strip and a test tube is described. The test strip comprises a detection zone for detecting an analyte in a sample. The test tube accommodates the test strip. The test tube comprises an indicator at a position corresponding to the detection zone of the test strip which is inserted into the test tube.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: August 19, 2008
    Assignee: Sysmex Corporation
    Inventors: Masako Aki, Shinya Nagai, Takeshi Imoarai
  • Publication number: 20080160508
    Abstract: An assay method for virus respiratory infection, is provided with steps of: providing a first immunochromatographic test device for assaying a first virus respiratory infection, and a second immunochromatographic test device for assaying a second virus respiratory infection different from the first virus respiratory infection; preparing an assay sample by treating a biological sample with a sample treatment liquid; assaying a part of the assay sample by using the first test device; and assaying a part of the assay sample by using the second test device when the assay result with the first test device is negative.
    Type: Application
    Filed: December 18, 2007
    Publication date: July 3, 2008
    Applicant: SYSMEX CORPORATION
    Inventors: Takeshi IMOARAI, Koji OCHIAI
  • Publication number: 20070178606
    Abstract: An chromatography kit is described, a representative one of which includes: an examination container one end of which has an inlet for receiving a sample, and an chromatography examination strip used by inserting from the inlet into the examination container wherein the examination container comprises a prevention part for preventing from the adherence of the examination strip on the inner wall of the examination container.
    Type: Application
    Filed: September 27, 2006
    Publication date: August 2, 2007
    Inventors: Takeshi Imoarai, Shinya Nagai, Motoi Furutani, Kanako Horisaka
  • Publication number: 20070144922
    Abstract: The present invention is to present a test strip package that has less potential for accommodating a test strip and a desiccant agent at a location different from their proper location originally determined. The test strip package comprising: a test strip for detecting an analyte contained in a sample; a desiccant agent; and a container comprising a first room for housing the test strip, a second room for housing the desiccant agent and a cover for sealing the first and second rooms, the second room being communicated with the first room.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 28, 2007
    Applicant: SYSMEX CORPORATION
    Inventors: Takeshi Imoarai, Haruki Yamaguchi, Akihide Oka
  • Publication number: 20060154241
    Abstract: An immunochromatographic test device of the present invention comprises: a sample receiving member for receiving a sample; a label holding member for holding a labeling substance to bind to an analyte contained in the sample; and a chromatographic membrane having a detection zone at which an immobilization substance to bind to the analyte is immobilized, wherein the sample receiving member disposed to cover the label holding member and in contact with the chromatographic membrane, and the chromatographic membrane is spaced apart from the label holding member.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 13, 2006
    Inventors: Masako Aki, Shinya Nagai, Noriyuki Saito, Takeshi Imoarai
  • Publication number: 20060154301
    Abstract: A test kit for immunochromatography comprising a test strip and a test tube is described. The test strip comprises a detection zone for detecting an analyte in a sample. The test tube accommodates the test strip. The test tube comprises an indicator at a position corresponding to the detection zone of the test strip which is inserted into the test tube.
    Type: Application
    Filed: January 11, 2006
    Publication date: July 13, 2006
    Inventors: Masako Aki, Shinya Nagai, Takeshi Imoarai
  • Publication number: 20060148097
    Abstract: A test strip for immunochromatography comprising a sample receiving member, a label holding member, and a chromatography membrane is described. The chromatography membrane has a first detection zone and a second detection zone. The second detection zone is formed by utilizing a blocking material and the second substance. A method for producing above the test strip is also described.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 6, 2006
    Inventors: Haruki Yamaguchi, Takehiro Hasegawa, Takeshi Imoarai
  • Publication number: 20040265800
    Abstract: Sample pretreatment solutions for influenza virus tests by immunochromatography are described.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 30, 2004
    Applicant: SYSMEX CORPORATION
    Inventors: Takeshi Imoarai, Motoi Furutani, Masako Aki
  • Publication number: 20030186285
    Abstract: A pretreatment method for enhancing relativity and reaction specificity prior to the detection or determination of an ingredient, especially a microorganism ingredient, contained in a biosample; and a pretreating fluid therefor or a reagent for determination containing the pretreating fluid. The pretreating fluid(or reactive fluid), which is for the determination of an ingredient contained in a sample to be tested, comprises at least an organic acid or a salt thereof. If preferably comprises: at least one member selected among surfactants and substances capable of reduction; and an organic acid or salt thereof. Treatments with the pretreating fluid were found to eliminate problems and the invention has thus been completed.
    Type: Application
    Filed: January 24, 2003
    Publication date: October 2, 2003
    Inventors: Noriyuki Saito, Takeshi Imoarai, Masako Aki, Yasuo Amatsuji