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. 14, 1992
Filed:
Mar. 25, 1991
Applicant:
Inventors:
Tamio Yamano, Nagaokakyo, JP;
Nobumasa Kugutsu, Nagaokakyo, JP;
Tadashi Morimoto, Nagaokakyo, JP;
Yasuyuki Naito, Nagaokakyo, JP;
Assignee:
Murata Mfg. Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G / ; H01G / ; C04B / ;
U.S. Cl.
CPC ...
361321 ; 252 / ; 264 61 ; 501136 ;
Abstract
A temperature compensating ceramic dielectric of the present invention contains compositions consisting of 2.0 to 14.0 mole % of barium oxide, 51.0 to 63.5 mole % of titanium oxide and 22.5 to 47.0 mole % of neodymium oxide as NdO.sub.3/2. Among the composition range, however, ranges between 2.0 to 9.0 mole % of barium oxide and 60.0 to 63.5 mole % of titanium oxide are to be excluded. By adding 0.1 to 5.0% by weight of niobium oxide as NbO.sub.5/2 to the composition, the temperature compensating ceramic dielectric is obtained.