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. 07, 2007
Filed:
Jan. 13, 2004
Tomoyuki Fujii, Nagoya, JP;
Akiyoshi Hattori, Handa, JP;
Tomoyuki Fujii, Nagoya, JP;
Akiyoshi Hattori, Handa, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
An object of the present invention is to provide a joined structure effective for preventing crack formation after thermal cycles. The joined structure has a ceramic member, a metal memberto be joined, and a metal fixed memberfixed to the ceramic memberand having an exposed faceexposed along the joining faceof the ceramic member. A joining layeris provided between the ceramic memberand the metal memberand between the exposed faceof the fixed memberand the metal member. The joining layerhas thicker and thinner portionsand. Alternatively, the joining layerhas a maximum thickness of 0.15 mm or more.