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:
Sep. 06, 2005
Filed:
Aug. 26, 2003
Applicants:
Mizuki Kono, Yokaichi, JP;
Tsutomu Tatekawa, Otsu, JP;
Inventors:
Mizuki Kono, Yokaichi, JP;
Tsutomu Tatekawa, Otsu, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01P007/10 ; C04B035/46 ;
U.S. Cl.
CPC ...
Abstract
A high frequency dielectric ceramic composition includes: as a major component a composition which contains a rare earth element (Re), Al, Sr, and Ti as metal elements and has a composition formula expressed by a molar ratio of aReO-bAlO-cSrO-dTiOin which a, b, c, and d satisfy the following formula; 0.113≦a≦0.172, 0.111≦b≦0.171, 0.322≦c≦0.388, 0.323≦d≦0.396, and a+b+c+d=1.000; and 0.01 to 2 parts by weight on a FeOconversion basis of Fe as an element, based on 100 parts by weight of the major component.