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:
Mar. 25, 2003
Filed:
May. 17, 2000
Applicant:
Inventors:
Hirohiko Tatsumoto, Kariya, JP;
Shoichiro Emmei, Nagoya, JP;
Assignee:
Denso Corporation, Aichi-Pref., JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/7407 ;
U.S. Cl.
CPC ...
G01N 2/7407 ;
Abstract
A first ceramic sheet and a second ceramic sheet are bonded via an adhesive layer so as to form a closed hollow space between them. A tapered portion with a slant surface is formed at an inner end of the adhesive layer so as to protrude into the closed hollow space. The thickness t of the adhesive layer is equal to or smaller than 40 &mgr;m, and the protruding length L of the tapered portion is equal to or larger than 2.5 t