Patents by Inventor Tadamitsu Sudo

Tadamitsu Sudo 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 assaying antigen-antibody reactions and reagent thereof
    Patent number: 4672045
    Abstract: There are disclosed a method for assaying antigens or antibodies in the reaction medium, characterized in that a sample containing antigens or antibodies to be assayed is treated with a polyanion which is soluble in the reaction medium and thus treated sample is used for the antigen-antibody reaction; and a reagent for assaying an antigen-antibody reaction, which contains a polyanion and a reaction medium.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: June 9, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Satoshi Tsutsui, Tadamitsu Sudo, Michio Ito
  • Method of measurement of antigens and antibodies
    Patent number: 4313929
    Abstract: A method of the quantitative measurement of antigens and antibodies by reacting an antigen or antibody or a mixture thereof with the corresponding antibody and/or antigen which has been supported on insoluble carrier particles, irradiating the resulting reaction mixture with light of a specific wavelength to measure the intensity of light scattered by the reaction mixture.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: February 2, 1982
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Shiro Morita, Masanobu Sawai, Shin-ichro Matsumoto, Tadamitsu Sudo
  • Method and apparatus for the measurement of antigens and antibodies
    Patent number: 4224304
    Abstract: A method of the quantitative measurement of antigens and antibodies by reacting antibody- or antigen-sensitized insoluble carrier particles with a corresponding antigen or antibody or a mixture thereof in a sample, irradiating the reaction mixture with light of a specific wavelength to measure the transmitted light at two or more points of time as the reaction proceeds, and then evaluating an increase in absorbance or percent absorption of the reaction mixture for a given period of time, and an apparatus for use therein.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: September 23, 1980
    Assignee: Mitsubishi Chemical Industries, Limited
    Inventors: Masanobu Sawai, Tadamitsu Sudo, Shogo Enomoto
  • Method and apparatus for the measurement of antigens and antibodies
    Patent number: 4208185
    Abstract: A method of the quantitative measurement of antigens and antibodies by reacting antibody- or antigen-sensitized insoluble carrier particles with a corresponding antigen or antibody or a mixture thereof in a sample and irradiating the reaction mixture with light of a specific wavelength to measure the absorbance or percent absorption of the reaction mixture, and an apparatus for use therein.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: June 17, 1980
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Masanobu Sawai, Tadamitsu Sudo, Shogo Enomoto
  • Method and apparatus for the measurement of antigens and antibodies
    Patent number: 4203724
    Abstract: A method of the quantitative measurement of antigens and antibodies by reacting antibody-or antigen-sensitized insoluble carrier particles with a corresponding antigen or antibody or a mixture thereof in a sample and irradiating the reaction mixture with light which contains rays of polychromatic light having a particular wavelength region in the range of 0.6 to 2.4 microns to measure the absorbance or percent absorption of the reaction mixture, and an apparatus for use therein.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: May 20, 1980
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Masanobu Sawai, Tadamitsu Sudo, Shogo Enomoto
  • Method and apparatus for the measurement of antigens and antibodies
    Patent number: 4118192
    Abstract: A method of the quantitative measurement of antigens and antibodies by reacting antibody- or antigen-sensitized insoluble carrier particles with a corresponding antigen or antibody or a mixture thereof in a sample and irradiating the reaction mixture with light of a specific wavelength to measure the absorbance of the reaction mixture, and an apparatus for use therein.
    Type: Grant
    Filed: August 16, 1977
    Date of Patent: October 3, 1978
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Masanobu Sawai, Tadamitsu Sudo, Shogo Enomoto