Patents by Inventor Yusuke Shibai

Yusuke Shibai 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).

  • Publication number: 20160334338
    Abstract: Provided is an immunochromatographic analysis method, which does not require expert knowledge of a specific device or analysis and also does not involve complicated operations by individually causing a first substance to be detected, which is to be determined to be positive or negative, and a second substance to be detected, which is used as a standard for making a positive or negative determination by ascertaining the ratio of the second substance to be detected to the first substance to be detected, to develop color by an immune reaction, and setting the concentration at which the strengths of the developed color signals of the two substances to be detected are the same as a boundary for the determination of the first substance to be detected.
    Type: Application
    Filed: January 14, 2015
    Publication date: November 17, 2016
    Inventors: Daisuke ITO, Satoru NAKAJIMA, Yusuke SHIBAI
  • Publication number: 20130011932
    Abstract: [Object] To provide a reagent composition, or a sample thinner, for immunochromatography which are more effective in suppressing nonspecific reactions than the conventional counterparts, which use an immunochromatography device to detect a target substance; also to provide a high performance and highly sensitive immunochromatography device and a detective kit capable of prompt and simple detection work. [Solution means] In detecting a target substance in a sample by means of immunochromatography method, it is possible to suppress nonspecific reactions through a use of a reagent composition for immunochromatography or a development solution for immunochromatography or a sample thinner for immunochromatography which contain a buffer solution, a chelating agent, and a non-ionic surfactant.
    Type: Application
    Filed: October 7, 2010
    Publication date: January 10, 2013
    Applicant: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Daisuke Itoh, Yusuke Shibai
  • Publication number: 20120288962
    Abstract: [Object] To provide preparation of a detection antibody optimal for detecting by immunoassay raw pork in non-heated food with high performance and high sensitivity without causing non-specific reaction, a convenient and high-accuracy detection process using the detection antibody, and a detection kit therefor. [Solution] Provided is an immunochromatographic detection process of a protein derived from raw pork in non-heated food using an antibody specifically recognizing immunoglobulin G contained in raw pork in non-heated food as a detection antibody, an immunochromatography detection apparatus for conducting the detection process, and an immunochromatographic detection kit.
    Type: Application
    Filed: February 24, 2011
    Publication date: November 15, 2012
    Inventors: Yuhiro Sakakibara, Kazuyoshi Mochiduki, Yusuke Shibai, Hisahiko Iwamoto
  • Publication number: 20120028246
    Abstract: Disclosed by the invention are an immunoassay kit and an immunoassay method for detecting highly pathogenic avian influenza virus subtype H5N1 rapidly, conveniently and specifically. Also disclosed are an immunochromatographic detection kit and an immunochromatographic detection method for detecting the virus subtype H5N1 rapidly, conveniently and specifically. It is found that a monoclonal antibody 4G6 produced by using the virus subtype H5N1 as an immunogen does not react with the subtype H5N2 virus or a subtype H5N3 virus and reacts only with a subtype H5N1 virus specifically. It is also found that only an avian influenza virus subtype H5N1 can be detected specifically by an immunoassay utilizing the monoclonal antibody 4G6.
    Type: Application
    Filed: October 1, 2009
    Publication date: February 2, 2012
    Inventors: Takaaki Nakaya, Anariwa Du, Yusuke Shibai, Daisuke Itoh, Hisahiko Iwamoto