Patents by Inventor Yasuyo Maeda

Yasuyo Maeda 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).

  • Non-liquid phase type chemiluminescent enzyme immunoassay method and assay kit
    Patent number: 8137986
    Abstract: A chemiluminescent enzyme immunoassay method whereby a target substance such as a protein is assayed. This chemiluminescent enzyme immunoassay method comprises: the step of capturing an immune complex containing an enzyme-labeled antibody, which is labeled with an enzyme acting a chemiluminescent substrate, and the target substance on a support having no solution layer; the step of overlaying a support membrane containing the chemiluminescent substrate on the immune complex having been captured above; and the step of measuring the luminescence dose caused by the reaction between the enzyme-labeled antibody and the chemiluminescent substrate to thereby quantify the target substance.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: March 20, 2012
    Assignees: National University Corporation Hokkaido University, Seiken Co., Ltd., Aska Special Laboratory Co., Ltd.
    Inventors: Koichi Shimizu, Takeshi Kawaguchi, Yasuyo Maeda, Takehide Matsuda
  • Non-Liquid Phase Type Chemiluminescent Enzyme Immunoassay Method and Assay Kit
    Publication number: 20090142781
    Abstract: A chemiluminescent enzyme immunoassay method whereby a target substance such as a protein is assayed. This chemiluminescent enzyme immunoassay method comprises: the step of capturing an immune complex containing an enzyme-labeled antibody, which is labeled with an enzyme acting a chemiluminescent substrate, and the target substance on a support having no solution layer; the step of overlaying a support membrane containing the chemiluminescent substrate on the immune complex having been captured above; and the step of measuring the luminescence dose caused by the reaction between the enzyme-labeled antibody and the chemiluminescent substrate to thereby quantify the target substance.
    Type: Application
    Filed: October 30, 2006
    Publication date: June 4, 2009
    Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSIT
    Inventors: Koichi Shimizu, Takeshi Kawaguchi, Yasuyo Maeda, Takehide Matsuda