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, 2017
Filed:
Mar. 20, 2015
Applicant:
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Inventors:
Assignee:
NGK SPARK PLUG CO., LTD., Nagoya, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/407 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4071 (2013.01);
Abstract
A gas detection element of a gas sensor has a reference gas introduction passage formed therein and extending from an opening at a radially outer perimetric surface of an element rear-end portion to a detecting section of an element forward-end portion for introducing reference gas from the opening to the detecting section. The entirety of the reference gas introduction passage is provided on a forward side in an axial direction with respect to contact portions of electrode pads and through hole conductors which are formed on and in the element rear-end portion.