Patents by Inventor Akiko Katori

Akiko Katori 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).

  • Urease-immobilized urea electrode and process for preparing the same
    Patent number: 4476005
    Abstract: Urea electrode comprises a urease-immobilized membrane having added amino groups prepared by dipping an immobilized membrane in an aqueous solution of ethylenediamine or polylysine and an electrode for quantitative determination of ammonium ions. The electrode has a shorter measurement time with a larger electrode output.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: October 9, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Daizo Tokinaga, Teruaki Kobayashi, Akiko Katori, Yoshiharu Karasawa