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:
Oct. 29, 1985
Filed:
May. 03, 1984
Applicant:
Inventors:
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
501139 ;
Abstract
A microwave dielectric ceramic composition consisting of 15-19 mol % of barium oxide (BaO), 61-73 mol % of titanium dioxide (TiO.sub.2), 3.5-15 mol % of samarium oxide (Sm.sub.2 O.sub.3), and 1.5-15 mol % of cerium oxide (CeO.sub.2). Since this composition has a high specific dielectric constant .epsilon..sub.r and a high no load value Q, it can be used as a microwave resonator, a temperature compensating capacitor or the like.