Patents by Inventor Hiroyuki Kiyokawa

Hiroyuki Kiyokawa 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).

  • Immunological blood test method
    Patent number: 4200434
    Abstract: A method for immunological blood testing carried out by the use of a coil column, composed of a transparent tube helically wound on a support rod. To carry out the test, the coil column filled with a liquid solution of a polymer compound is, after a droplet of blood to be tested has been introduced into the liquid solution within the tube, centrifuged while undergoing a planetary motion to allow erythrocytes to sediment.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: April 29, 1980
    Assignee: Sanki Engineering Ltd.
    Inventors: Kazuo Okochi, Hiroyuki Kiyokawa