Patents by Inventor Yochiro Ito

Yochiro Ito 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).

  • Chromatographic separation apparatus and method
    Patent number: 6379973
    Abstract: A fractionation apparatus comprises two channels coupled through a semipermeable membrane. A time and position dependent concentration of precipitation reagent is produced in one of the channels. Sample entities such as macromolecules or cells introduced into this channel are eluted therefrom at different times depending on their solubility or mobility in the presence of the precipitation reagent.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: April 30, 2002
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventor: Yochiro Ito