Patents by Inventor Tadashi Kutsusawa

Tadashi Kutsusawa 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).

  • Automatic enzyme immunoassay apparatus
    Patent number: 4383041
    Abstract: An apparatus for automatically performing a sandwich-type enzyme immunoassay. The apparatus includes a rack for holding test tubes. In the test tubes are beads which provide surfaces for the immuochemical reactions. The rack can be moved in lengthwise and transverse directions. Nozzles for supplying and withdrawing liquids from the test tubes are included. The bead in one tube can be transferred to a second tube. The absorbance of a final liquid is measured spectrophotometrically, and the results are recorded by a printer.
    Type: Grant
    Filed: October 21, 1981
    Date of Patent: May 10, 1983
    Assignee: Fujizoki Pharmaceutical Co., Ltd.
    Inventors: Tadashi Kutsusawa, Hideo Shirane, Mikiharu Fujihara, Hideho Hisada