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, 1990
Filed:
Jul. 31, 1989
Takayuki Kawae, Nagoya, JP;
Kazuyoshi Shibata, Nagoya, JP;
NGK Insulators, Ltd., , JP;
Abstract
An electrochemical cell which includes a solid electrolyte body and a plurality of electrodes formed on the solid electrolyte body, for determining the concentration of a component contained in a measurement gas. The electrodes include at least one porous electrode exposed to the measurement gas. The method includes a step of preparing an unfired electrode material for the porous electrode or electrodes, which includes an inorganic compound which produces a gas at an elevated temperature, and an electrically conductive material. The unfired electrode material is applied to the solid electrolyte body to form an unfired electrode layer or layers corresponding to the porous electrode or electrodes. The formed unfired electrode layer or layers is/are heated to a temperature higher than the above-indicated elevated temperature, to form the porous electrode or electrodes.