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:
Apr. 29, 1986
Filed:
Dec. 14, 1984
Applicant:
Inventors:
Tutomu Tunooka, Nagoya, JP;
Fumio Mizuno, Nagoya, JP;
Assignee:
NGK Spark Plug Co., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501135 ;
Abstract
A dielectric ceramic composition, which has a high dielectric constant, low loss and stable temperature characteristics suited for the microwave frequency range, is obtained by the present invention. The dielectric ceramic composition according to the present invention is expressed as (Ba.sub.x Sr.sub.1-x)(Ni.sub.1/3 Nb.sub.2/3)O.sub.3 and with a mole fraction range of 0.ltoreq.x<1.