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. 17, 2012
Filed:
Mar. 18, 2009
Toshio Yamada, Nagoya, JP;
Hideyuki Toyoshima, Nagoya, JP;
Toshio Yamada, Nagoya, JP;
Hideyuki Toyoshima, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A precise exhaust gas control can be achieved without being influenced by fluctuations of the excess air ratio (λ) between cylinders of engines or the size of the diameter (the sectional area) of the honeycomb structure. The honeycomb structure is formed by a plurality of cells separated from one another by porous partition walls and functioning as fluid flow paths, the honeycomb structure includes: a sensor plug-in holewhich is formed in an outer peripheral surfaceof the honeycomb structure and into which a sensor can be plugged, and the sensor plug-in holeis provided with at least one deep holewhich communicates with the sensor plug-in hole.