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:
Jun. 05, 2007
Filed:
Jun. 08, 2004
Hisashi Kozuka, Bisai, JP;
Yuji Yasunishi, Arlington Heights, IL (US);
Kiyoshi Matsuda, Ise, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A dielectric material comprising: a composition represented by aBaO.bTiO.cREO.dBiO, wherein a, b, c and d each independently represent a molar ratio satisfying the following requirements: a+b+c+d=1, 0.09≦a≦0.16, 0.54≦b≦0.62, 0.20≦c≦0.34 and 0≦d≦0.10; and RE represents a rare earth metal; and from 5 to 50 parts by mass, per 100 parts by mass of the composition, of a glass containing a component represented by kBaO.lZnO.mBO.nSiO, wherein k, l, m and n each independently represent a composition percentage satisfying the following requirements: k+l+m+n=100, 25≦k≦55, 5≦1≦30, 15≦m≦35 and 5≦n≦30.