Patents Assigned to TFB, Inc.
  • Immunoassay using insoluble carrier particles and reagent therefor
    Patent number: 8431415
    Abstract: The present invention provides a reagent for an immunoassay comprising insoluble carrier particles which can give the values to be determined with high accuracy and reliability, and can be stored for a long time; an immunoassay using the reagent; and a method for keeping the reagent stable.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: April 30, 2013
    Assignee: TFB, Inc.
    Inventor: Kayoko Shigenobu
  • Method for measuring antioxidant activities of samples and method for diagnosing diabetes or hyperlipidemia using the same
    Patent number: 6316263
    Abstract: A method for measuring antioxidant activity of test samples, which attains higher sensitivity than the conventional methods is disclosed. In the method of this invention, methemoglobin, an oxidizing agent which oxidizes methemoglobin, a coloring agent which generates color by reaction with methemoglobin in the presence of the oxidizing agent, and a test sample whose antioxidant activity is to be measured are reacted, and the generated color is measured.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: November 13, 2001
    Assignee: TFB, Inc.
    Inventors: Hiroshige Itakura, Kazuo Kondo, Masahiro Kimura, Hiroo Yamamoto