Patents by Inventor Kenju Fujita

Kenju Fujita 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).

  • Methods and kits for decreasing interferences from leukocytes in specific binding assays
    Patent number: 10641768
    Abstract: The present disclosure describes methods and kits for reducing interferences in immunoassays performed on solid phase and on samples containing serum or plasma, by adding an effective amount of a polycationic derivative of dextran to the assay.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: May 5, 2020
    Assignee: ABBOTT JAPAN CO. LTD.
    Inventors: Toru Yoshimura, Kenju Fujita
  • Immunoassay method for pro-gastrin-releasing peptide
    Patent number: 10067124
    Abstract: To provide a more convenient and more accurate method of assaying ProGRP by improving the stability of ProGRP which is known to be unstable in a biological sample. By using a blood sample in a condition in which a blood coagulation factor is not activated is used as a sample, the degradation of ProGRP is suppressed, whereby it is possible to store a sample for a long period of time and to improve the accuracy of an assay.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: September 4, 2018
    Assignees: Abbott Laboratories, Abbott Japan Co. Ltd.
    Inventors: Toru Yoshimura, Kenju Fujita, Barry L. Dowell
  • IMMUNOASSAY METHOD FOR PRO-GASTRIN-RELEASING PEPTIDE
    Publication number: 20170089889
    Abstract: To provide a more convenient and more accurate method of assaying ProGRP by improving the stability of ProGRP which is known to be unstable in a biological sample. By using a blood sample in a condition in which a blood coagulation factor is not activated is used as a sample, the degradation of ProGRP is suppressed, whereby it is possible to store a sample for a long period of time and to improve the accuracy of an assay.
    Type: Application
    Filed: October 3, 2016
    Publication date: March 30, 2017
    Inventors: Toru Yoshimura, Kenju Fujita, Barry L. Dowell
  • Immunoassay method for pro-gastrin-releasing peptide
    Patent number: 9459248
    Abstract: To provide a more convenient and more accurate method of assaying ProGRP by improving the stability of ProGRP which is known to be unstable in a biological sample. By using a blood sample in a condition in which a blood coagulation factor is not activated is used as a sample, the degradation of ProGRP is suppressed, whereby it is possible to store a sample for a long period of time and to improve the accuracy of an assay.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: October 4, 2016
    Assignees: Abbott Laboratories, Abbott Japan Co. Ltd.
    Inventors: Toru Yoshimura, Kenju Fujita, Barry L. Dowell
  • IMMUNOASSAY METHOD FOR PRO-GASTRIN-RELEASING PEPTIDE
    Publication number: 20140287532
    Abstract: To provide a more convenient and more accurate method of assaying ProGRP by improving the stability of ProGRP which is known to be unstable in a biological sample. By using a blood sample in a condition in which a blood coagulation factor is not activated is used as a sample, the degradation of ProGRP is suppressed, whereby it is possible to store a sample for a long period of time and to improve the accuracy of an assay.
    Type: Application
    Filed: June 3, 2014
    Publication date: September 25, 2014
    Inventors: Toru Yoshimura, Kenju Fujita, Barry L. Dowell
  • METHODS AND KITS FOR DECREASING INTERFERENCES FROM LEUKOCYTES IN SPECIFIC BINDING ASSAYS
    Publication number: 20130011826
    Abstract: The present disclosure describes methods and kits for reducing interferences in immunoassays performed on solid phase and on samples containing serum or plasma, by adding an effective amount of a polycationic derivative of dextran to the assay.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Applicant: ABBOTT LABORATORIES
    Inventors: Toru Yoshimura, Kenju Fujita
  • IMMUNOASSAY METHOD FOR PRO-GASTRIN-RELEASING PEPTIDE
    Publication number: 20100136711
    Abstract: To provide a more convenient and more accurate method of assaying ProGRP by improving the stability of ProGRP which is known to be unstable in a biological sample. By using a blood sample in a condition in which a blood coagulation factor is not activated is used as a sample, the degradation of ProGRP is suppressed, whereby it is possible to store a sample for a long period of time and to improve the accuracy of an assay.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 3, 2010
    Inventors: Toru Yoshimura, Kenju Fujita, Barry L. Dowell