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. 17, 2012
Filed:
Feb. 06, 2009
Yasutaka Sugimoto, Kyoto, JP;
Sadaaki Sakamoto, Koka, JP;
Yasutaka Sugimoto, Kyoto, JP;
Sadaaki Sakamoto, Koka, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo-Shi, Kyoto-fu, JP;
Abstract
A glass ceramic composition which is formed by firing into a sintered body having a relatively high relative dielectric constant and Q value is provided. It includes a CaZrO-based ceramic and a LiO—MgO—ZnO—BO—SiO-based glass. The LiO—MgO—ZnO—BO—SiO-based glass is 1 to 12 percent by weight of the total composition, the content of LiO is 3.5 to 15 percent by weight, the content of MgO is 20 to 50 percent by weight, the content of BaO is 0 to 25 percent by weight, the content of CaO is 0 to 10 percent by weight, the content of SrO is 0 to 25 percent by weight, the content of BOis 16 to 29 percent by weight, the content of SiOis 11 to 35 percent by weight, the content of ZnO is 5 to 20 percent by weight, and the content of AlOis 0 to 15 percent by weight. This glass ceramic composition is advantageously used for green glass ceramic layers to form a green laminate structure useful as a main component body of an LC filter or the like.