Patents by Inventor Jun-ichi Tohmatsu

Jun-ichi Tohmatsu 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).

  • Preparation of .alpha.-L antibody, purification of .alpha.-L antigen and reagent for detection of .alpha.-L antibody and .alpha.-L antigen
    Patent number: 4132767
    Abstract: Process for the preparation of a novel .alpha.-L antibody comprising immunizing an animal other than a human with the .alpha.-L antigen or .alpha.-L antigen/.alpha.-L antibody complex, and collecting antiserum from the animal; a method for the purification of .alpha.-L antigen comprising subjecting the material containing the .alpha.-L antigen to the density gradient centrifugation, and collecting a fraction having a buoyant density less than 1.1 g/ml; a reagent comprising .alpha.-L antigen; and a reagent comprising .alpha.-L antibody for detection of the .alpha.-L antigen and the .alpha.-L antibody, such detection being useful for the diagnosis of liver diseases and examination of the blood for blood transfusion.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: January 2, 1979
    Assignee: Eisai Co., Ltd.
    Inventors: Jun-ichi Tohmatsu, Tomiaki Morimoto, Emiko Kishi