Patents by Inventor Daizo Tokinage

Daizo Tokinage 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).

  • Nephelometric immunoassay and nephelometer
    Patent number: 4401387
    Abstract: A nephelometric immunoassay and a nephelometer therefore, characterized in that light is projected on a sample to-be-measured containing an antigen-antibody complex, that at least two light scattering intensities at different angles with respect to the incident light are measured, and that a true antigen concentration is discriminated by comparing the light scattering intensities.
    Type: Grant
    Filed: August 18, 1981
    Date of Patent: August 30, 1983
    Assignee: Hitachi, Ltd.
    Inventors: Daizo Tokinage, Teruaki Kobayashi, Mitsuyoshi Yuasa, Michio Itoh, Kazuo Yasuda