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:
Apr. 24, 2012
Filed:
Dec. 31, 2007
Kunihiko Nakagaki, Nagoya, JP;
Hideyuki Suzuki, Kasugai, JP;
Osamu Nakasone, Inabe, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A gas sensor element including: a sensor layer in which at least one pair of electrodes are provided in a solid electrolyte for measuring an electromotive force based on a difference in an oxygen concentration between atmospheres; and a heater layer which includes a heater element with a heat generating portion and an electrically insulating layer disposed so as to enclose the heater element and which is configured to heat, by an electric current supplied to the heater element, at least a portion of the solid electrolyte at which the at least one pair of electrodes are provided, the sensor layer and the heater layer being laminated integrally on each other, wherein the electrically insulating layer contains at least one metal oxide selected from the group consisting of alkali metal oxide and alkaline earth metal oxide.