Patents by Inventor Yuhiro Sakakibara

Yuhiro Sakakibara 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: 9952207
    Abstract: When an immunochromatography reagent composition containing a nonionic surfactant, an N,N-bis(2-hydroxyethyl)glycine buffer, and casein is used as a specimen treatment solution or developing solution in detecting a detection object in a specimen according to an immunochromatographic method, an immunochromatography reagent composition which suppresses a non-specific reaction; does not cause aggregation of antibody-immobilized colloidal gold; and has a high developing rate, in comparison with conventional technology which detects a detection object by using an immunochromatographic device; and a high-performance and highly-sensitivity immunochromatographic method and a detection kit capable of rapid, simple and easy virus detection, which use the immunochromatography reagent composition are provided.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: April 24, 2018
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Hisahiko Iwamoto, Yuhiro Sakakibara, Satoru Nakajima
  • Patent number: 9863943
    Abstract: A method for detecting pork in heated food by immunochromatographic detection with high performance and high sensitivity without causing non-specific reaction. The method provides a convenient and high-accuracy detection method using a polyclonal antibody. When a target to be detected in a sample, pork-derived protein in heat-processed food, is detected by immunochromatography, a polyclonal antibody specifically recognizing a protein of approximately 23 kD (molecular weight: 23000) contained in heat-treated pork is used as at least one or both detection antibodies.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: January 9, 2018
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Yuhiro Sakakibara, Tatsuya Shuto, Hisahiko Iwamoto
  • Publication number: 20130171740
    Abstract: A reagent composition for nucleic acid chromatography or immunochromatography which includes a water-soluble polymer having a weight average molecular weight of 8,000 or more, a salt of a divalent or trivalent metal, a nonionic surfactant, and an aprotic water-soluble organic compound. The reagent composition is capable of determining an analyte accurately and rapidly even when it has a low concentration in a measurement by nucleic acid chromatography or immunochromatography, by reducing the binding of components other than the analyte through a non-specific reaction and enhancing the dispersion capability of the analyte to improve the developability on a chromatography carrier and to promote a specific reaction.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 4, 2013
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventor: Yuhiro Sakakibara
  • Publication number: 20130137192
    Abstract: When an immunochromatography reagent composition containing a nonionic surfactant, an N,N-bis(2-hydroxyethyl)glycine buffer, and casein is used as a specimen treatment solution or developing solution in detecting a detection object in a specimen according to an immunochromatographic method, an immunochromatography reagent composition which suppresses a non-specific reaction; does not cause aggregation of antibody-immobilized colloidal gold; and has a high developing rate, in comparison with conventional technology which detects a detection object by using an immunochromatographic device; and a high-performance and highly-sensitivity immunochromatographic method and a detection kit capable of rapid, simple and easy virus detection, which use the immunochromatography reagent composition are provided.
    Type: Application
    Filed: August 3, 2011
    Publication date: May 30, 2013
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Hisahiko Iwamoto, Yuhiro Sakakibara, Satoru Nakajima
  • Publication number: 20120329073
    Abstract: [Object] To provide preparation of an ingredient derived from a specimen optimal for detecting by immunoassay pork in heated food with high performance and high sensitivity without causing non-specific reaction, a convenient and high-accuracy detection method using a polyclonal antibody obtained by using the ingredient, and a detection kit therefor. [Solution] When a target to be detected in a sample, pork-derived protein in heat-processed food, is detected by immunochromatography, a polyclonal antibody specifically recognizing a protein of approximately 23 kD (molecular weight: 23000) contained in heat-treated pork is used as at least one or both detection antibodies.
    Type: Application
    Filed: February 18, 2011
    Publication date: December 27, 2012
    Applicant: Tanaka Kikinzoku Kogyo K.K
    Inventors: Yuhiro Sakakibara, Tatsuya Shuto, Hisahiko Iwamoto
  • 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