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.

Date of Patent:
Nov. 02, 2010

Filed:

Jun. 18, 1998
Applicants:

Tomio Sugiyama, Nagoya, JP;

Hiromi Sano, Nagoya, JP;

Masahiro Shibata, Nagoya, JP;

Midori Shibata, Legal Representative, Nagoya, JP;

Natsumi Shibata, Legal Representative, Nagoya, JP;

Raina Shibata, Legal Representative, Nagoya, JP;

Syuichi Nakano, Kariya, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/406 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multilayered air-fuel ratio sensor consists of a plurality of substrate layers. At least one heterogeneous boundary layer is interposed between the plurality of substrate layers. The heterogeneous boundary layer has a thickness in a range of 10 to 100 μm. The heterogeneous boundary layer absorbs thermal shocks or any other stresses acting on the substrate layers and stops the growth of cracks.


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