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. 07, 2004
Filed:
Aug. 02, 2002
Applicant:
Inventors:
Tomoya Maekawa, Osaka, JP;
Hiroshi Shigemura, Kyoto, JP;
Hideaki Nakakubo, Kyoto, JP;
Emiko Kawahara, Osaka, JP;
Toru Yamada, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 5/00 ;
U.S. Cl.
CPC ...
H03H 5/00 ;
Abstract
The present invention comprises baluns which convert balanced line signals and unbalanced line signals mutually, and filters which are electrically connected to the baluns and pass or attenuate the predetermined frequency bands. Electrode layers which compose the electrode patterns of the baluns and the filters , and the dielectric layers are integrally stacked.