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:
Aug. 31, 2010
Filed:
Aug. 25, 2008
Yoshinari Nakada, Gunma, JP;
Takayuki Maruyama, Gunma, JP;
Hideharu Suzuki, Gunma, JP;
Koihci Iguchi, Takasaki, JP;
Takahiro Samata, Takasaki, JP;
Satoshi Kimura, Gunma, JP;
Yoshinari Nakada, Gunma, JP;
Takayuki Maruyama, Gunma, JP;
Hideharu Suzuki, Gunma, JP;
Koihci Iguchi, Takasaki, JP;
Takahiro Samata, Takasaki, JP;
Satoshi Kimura, Gunma, JP;
Taiyo Yuden Co., Ltd., Tokyo, JP;
Abstract
A wire wound electronic part includes a ferrite core comprising ferrite having a columnar wire wound core and flanges formed at both ends thereof, a coil conductor wound around the wire wound core of the ferrite core, and at least a pair of terminal electrodes having a Cu conduction layer disposed to the outer surface of the flange, in which both ends of the coil conductor wound around the wire wound core are conductively connected to the terminal electrodes. The terminal electrode is formed by coating an electrode paste containing a Cu powder and a glass frit to the outer surface of the ferrite core, and then applying a heat treatment to the ferrite core. There is a reaction layer of a portion of the ferrite core and the glass frit at a boundary between the ferrite core and the Cu conduction layer. The terminal electrodes has the peel strength identical with that of an existent Ag terminal electrode, without forming a plate layer.