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. 16, 1996
Filed:
Feb. 10, 1995
Applicant:
Inventors:
Hiroshi Kagata, Neyagawa, JP;
Junichi Kato, Osaka, JP;
Tatsuya Inoue, Takatsuki, JP;
Ichiro Kameyama, Takatsuki, JP;
Keiji Nishimoto, Takatsuki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501136 ; 501135 ;
Abstract
This invention provides a dielectric ceramic composition which has a high dielectric constant and a high Q value, and also has lower temperature coefficient of resonance frequency. The dielectric ceramic composition is attained by sintering composition which comprises a first component from 40 to 98 wt % and a second component from 2 to 60 wt %. The first component is represented by the following formula,