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:
Apr. 16, 2002
Filed:
Sep. 19, 2000
Kouki Sato, Tokyo, JP;
Katsumi Saito, Tokyo, JP;
Toshihiro Kuroshima, Tokyo, JP;
Hiroshi Suzuki, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A common mode filter includes a drum-shaped core with a winding and a plate-like core fixed to flanges to form a closed magnetic path. Concave portions are formed in at least one of facing potions of both cores to provide gaps between the flanges of the drum-shaped core and the plate-like core A plurality of electrodes each of which is successive over a upper surface, end face and lower surface of each flange are provided at portions corresponding to the gaps in each flange A plurality of windings are wound around the winding core so that both ends of each of the plurality of windings are electrically connected and secured to the portions of the electrodes on the upper surface of each of the flanges, respectively, by conductive fixing agent. The drum-shaped core and the plate-like core are fixed to each other by an adhesive