Patents by Inventor Michiyo Itoh

Michiyo Itoh 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).

  • Sample measuring method using agglomeration reaction of microcarriers
    Patent number: 5198369
    Abstract: A mixture is prepared by mixing carriers to which a substance specifically reacting on an object substance adheres with a sample containing the object substance. The mixture is irradiated by light having an intensity gradient to concentrate the carriers at and near the irradiated positions by the optical pressure of the light. The efficiency of an agglomeration reaction of the carriers is thereby increased. A qualitative or quantitative measurement of the object substance is performed by detecting a state of agglomeration of the carriers within the mixture.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: March 30, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuuji Itoh, Michiyo Itoh, Yoshiyuki Touge, Atsushi Saitou, Tatsuya Yamazaki