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:
Aug. 22, 1989
Filed:
Sep. 02, 1987
Hitoshi Nishizawa, Iwakura, JP;
Kazuyoshi Shibata, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A gas sensor for dealing with a measurement gas in an external space, including an electrochemical pumping cell having a planar solid electrolyte body, and a first and a second electrode which are disposed on opposite surfaces of the solid electrolyte body. The sensor has a gas-tight ceramic body cooperating with the solid electrolyte body, to define therebetween a thin flat space, such that the first electrode communicates with the thin flat space. The thin flat space extends in a direction parallel to a plane of the planar solid electrolyte body and has a predetermined diffusion resistance to the measurement gas. The sensor further includes a porous structure exposed to the thin flat space in a direction of thickness of the thin flat space. The porous structure is juxtaposed with respect to the first electrode in the direction parallel to the plane of the solid electrolyte body, and maintains the thin flat space in communication with the external space under a predetermined diffusion resistance. A method of manufacturing the gas sensor is also disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile