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:
Jan. 18, 2005
Filed:
Jul. 28, 2003
Norikazu Niimi, Kasugai, JP;
Norikazu Niimi, Kasugai, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A joined body is provided, including a joining portion interposed between a first member wade of a metal and a second member, made of a ceramic or a cermet that joins the first and second members. The joining portion includes a main phase contacting the first member and an intermediate glass layer between the second member and the main phase. The main phase is composed of a porous bone structure having open pores and is made of a sintered product of metal powder. A glass phase is impregnated into the open pores in the porous bone structure. Preferably, the glasses of the intermediate glass layer and the impregnated glass phase have substantially the same composition.