Patents by Inventor Minoru Tohda

Minoru Tohda 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).

  • Method for measuring substances by enzyme immunoassay
    Patent number: 4743544
    Abstract: Improved method for the measurement of substance comprising simultaneously measuring a plurality of specimens of a substance to be measured by enzyme immunoassay. The process comprises:a. reacting specimens and a material which will be specifically combined with the substance to be measured and which has been made in the solid phase;b. separating the reaction mixture in step (a) into the solid phase and the liquid phase;c. reacting the solid phase with an enzyme-labelled product of a material which will be specifically combined with the substance to be measured;d. separating the reaction mixture in the step (c) into the solid phase and the liquid phase;e. reacting the solid phase or the liquid phase with a substrate for the enzyme in the step (c); andf. measuring the optical density of the reaction mixture.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: May 10, 1988
    Assignee: Eisai Co., Ltd.
    Inventors: Yuzaburo Namba, Tohru Naraki, Takashi Sawada, Toyohiro Kitamura, Minoru Tohda, Tomiaki Morimoto