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:
Feb. 19, 2019
Filed:
Mar. 22, 2017
Ngk Insulators, Ltd., Nagoya, JP;
Yoshimasa Kobayashi, Nagoya, JP;
Kisuke Yamamoto, Yokkaichi, JP;
Yunie Izumi, Nisshin, JP;
Takashi Noro, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A joined bodyincludes a ceramic body, a metal member, and a joint portionthat joins the ceramic bodyand the metal membertogether. The joint portionincludes a first joint layerjoined to the ceramic bodyand a second joint layerjoined to the metal member. The first joint layeris disposed on the ceramic bodyside and contains an alloy that contains Fe and Cr as main components, and a compound having a thermal expansion coefficient of 4.0×10(/° C.) or lower is dispersed in the first joint layer. The second joint layeris disposed on the metal memberside, contains an alloy that contains Fe and Cr as main components, and has a larger thermal expansion coefficient than the first joint layer