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:
Jul. 15, 2014
Filed:
Mar. 19, 2010
Junichi Masukawa, Tottori, JP;
Koji Ichikawa, Saitama, JP;
Junichi Masukawa, Tottori, JP;
Koji Ichikawa, Saitama, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
Disclosed is a dielectric ceramic composition which has high dielectric constant and suppressed low thermal expansion coefficient. Also disclosed are a multilayer dielectric substrate using the dielectric ceramic composition, and an electronic component. Specifically disclosed is a dielectric ceramic composition which contains an ATiO(wherein A represents either Ca and/or Sr) phase and an AAlSiOphase, said dielectric ceramic composition being characterized in that the dielectric constant is not less than 10 at 3 GHz and the average thermal expansion coefficient over the temperature range of 40-600° C. is less than 7 ppm/° C.