Patents by Inventor Naoko Izui

Naoko Izui 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).

  • Method of pretreating specimen and immunoassay using the same
    Patent number: 8426125
    Abstract: The present invention provides a method of pretreating a specimen, which allows measurement according to an immunoassay to be carried out on a specimen from nasal secretion while preventing non-specific reactions. According to this method, the specimen from nasal secretion is treated with a protease beforehand and then an immunoassay is performed. As the protease, it is preferable to use semi-alkaline protease (EC 3.4.21.63). Furthermore, it is preferable that a substance to be pretreated by the pretreatment method according to the present invention is an influenza virus contained in the specimen from nasal secretion. The immunoassay preferably is an immunoagglutination assay. Examples of the immunoagglutination assay include a turbidimetric immunoassay, a latex turbidimetric immunoassay, and a latex agglutination assay that is performed on a slide glass.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: April 23, 2013
    Assignee: ARKRAY, Inc.
    Inventors: Kyouichi Ohshiro, Kazuhiro Ohmiya, Naoko Izui
  • METHOD OF PRETREATING SPECIMEN AND IMMUNOASSAY USING THE SAME
    Publication number: 20110065099
    Abstract: The present invention provides a method of pretreating a specimen, which allows measurement according to an immunoassay to be carried out on a specimen from nasal secretion while preventing non-specific reactions. According to this method, the specimen from nasal secretion is treated with a protease beforehand and then an immunoassay is performed. As the protease, it is preferable to use semi-alkaline protease (EC 3.4.21.63). Furthermore, it is preferable that a substance to be pretreated by the pretreatment method according to the present invention is an influenza virus contained in the specimen from nasal secretion. The immunoassay preferably is an immunoagglutination assay. Examples of the immunoagglutination assay include a turbidimetric immunoassay, a latex turbidimetric immunoassay, and a latex agglutination assay that is performed on a slide glass.
    Type: Application
    Filed: November 18, 2010
    Publication date: March 17, 2011
    Applicant: ARKRAY, INC.
    Inventors: Kyouichi OHSHIRO, Kazuhiro OHMIYA, Naoko IZUI
  • Method Of Pretreating Specimen And Immunoassay Using The Same
    Publication number: 20080008992
    Abstract: The present invention provides a method of pretreating a specimen, which allows measurement according to an immunoassay to be carried out on a specimen from nasal secretion while preventing non-specific reactions. According to this method, the specimen from nasal secretion is treated with a protease beforehand and then an immunoassay is performed. As the protease, it is preferable to use semi-alkaline protease (EC 3.4.21.63). Furthermore, it is preferable that a substance to be pretreated by the pretreatment method according to the present invention is an influenza virus contained in the specimen from nasal secretion. The immunoassay preferably is an immunoagglutination assay. Examples of the immunoagglutination assay include a turbidimetric immunoassay, a latex turbidimetric immunoassay, and a latex agglutination assay that is performed on a slide glass.
    Type: Application
    Filed: December 13, 2005
    Publication date: January 10, 2008
    Applicant: ARKRAY, Inc.
    Inventors: Kyouichi Ohshiro, Kazuhiro Ohmiya, Naoko Izui