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:
May. 23, 2017
Filed:
Jul. 08, 2014
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
A multigas sensor (A) includes a multigas sensor element portion (A) having: a NOsensor portion (A) which detects the concentration of NO; and first and second ammonia sensor portions () having different ratios between a sensitivity of ammonia and a sensitivity of NO. The multigas sensor element portion has a plate-like shape which extends in the direction of the axis O. A temperature detecting portion () used for controlling the temperature of the NOsensor portion is disposed in the multigas sensor element portion. The first and second ammonia sensor portions are disposed on the outer surface of the NOsensor portion so that at least parts of the first and second ammonia sensor portions overlap with a first region () which is defined in the width direction by ends in the axial direction of the temperature detecting portion.