The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 1984
Filed:
Sep. 30, 1983
Applicant:
Inventors:
Daizo Tokinaga, Hachioji, JP;
Teruaki Kobayashi, Hachioji, JP;
Akiko Katori, Koganei, JP;
Yoshiharu Karasawa, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; C12Q / ; C12Q / ;
U.S. Cl.
CPC ...
204403 ; 134 42 ; 435 12 ; 435174 ; 435177 ; 435817 ;
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.