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:
Feb. 05, 2013
Filed:
Feb. 20, 2008
Jun Tsutsumi, Tokyo, JP;
Kazuhiro Matsumoto, Tokyo, JP;
Jun Tsutsumi, Tokyo, JP;
Kazuhiro Matsumoto, Tokyo, JP;
Taiyo Yuden Co., Ltd., Tokyo, JP;
Abstract
A filter of the present invention is a filter including a substrate and a filter element mounted on the substrate, wherein the substrate is provided with a plurality of wiring layers including a filter element wiring layer which is formed with wirings and connected with the filter element, an insulating layer interposed between the plural wiring layers and a ground pattern formed in at least a part of a wiring layer under the filter element wiring layer; and the thickness of the insulating layer interposed between the filter element wiring layer and the other wiring layer is smaller than the width of the wiring formed in the filter element wiring layer, and is larger than the thickness of the other wiring layer. By such a configuration, a thin, high-suppression and high-isolation filter can be realized.