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. 18, 2006
Filed:
Apr. 02, 2004
Hiroshi Suzuki, Tokyo, JP;
Toshihiro Kuroshima, Tokyo, JP;
Toshio Tomonari, Tokyo, JP;
Katsumi Saito, Tokyo, JP;
Katsuyuki Suzuki, Tokyo, JP;
Akira Sato, Tokyo, JP;
Hiroshi Suzuki, Tokyo, JP;
Toshihiro Kuroshima, Tokyo, JP;
Toshio Tomonari, Tokyo, JP;
Katsumi Saito, Tokyo, JP;
Katsuyuki Suzuki, Tokyo, JP;
Akira Sato, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A common-mode filter with a drum type core including a core portion and flange portions. Electrodes are provided on the flange portions and a pair of wires are wound on the core portion. The wound pair of wires have ends connected to respective ones of the electrodes. Each of the flange portions has a groove between corresponding two of the electrodes and a separation protrusion for separating the groove into two lead-out groove portions. The pair of wires are wound on the core portion in such a distributed winding manner that an inter-wire distance between the pair of wires and a winding pitch between adjacent turns in each of the pair of wires are provided. The wires are one-by-one led out through the lead-out groove portions while separated by the separation protrusions so that the ends of the pair of wires are connected to respective electrodes.