Patents by Inventor Mieko Fujio

Mieko Fujio 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).

  • Enzyme immunoassay for antigen and solid phase used therefor
    Patent number: 5378608
    Abstract: An enzyme immunoassay for an antigen using a solid phase, which employs (a) a biotinylated antibody in which a biotin derivative is bound to a thiol group of an Fab' fragment of an antibody, (b) an enzyme-labelled antibody, and (c) a solid phase immobilized with a substance capable of specifically reacting with the above biotin derivative selected from the group consisting of avidin, streptoavidin and a derivative thereof which is bound to the solid phase directly or via a linkage between another biotin derivative and a high molecular weight substance bound to the solid phase, or alternatively employs (a') a solid phase immobilized with a biotinylated antibody via a substance selected from the group consisting of avidin, streptoavidin and a derivative thereof wherein said substance is bound to the biotin moiety of said biotinylated antibody and is also bound to the solid phase directly or via a linkage between another biotin derivative and a high molecular weight substance bound to the solid phase, and (b') a
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: January 3, 1995
    Assignee: Nippon Shoji Kabushiki Kaisha
    Inventors: Yoji Marui, Chozo Hayashi, Shigeki Ito, Mieko Fujio, Hiroki Tanaka, Toshihide Nagasaki, Yasuji Soda, Hitoshi Kaneta