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. 15, 2009
Filed:
May. 05, 2008
Naoki Sutoh, Tokyo, JP;
Takashi Suzuki, Tokyo, JP;
Kunio Oda, Tokyo, JP;
Yukio Takahashi, Tokyo, JP;
Kunihiko Kawasaki, Tokyo, JP;
Hiroshi Momoi, Tokyo, JP;
Naoki Sutoh, Tokyo, JP;
Takashi Suzuki, Tokyo, JP;
Kunio Oda, Tokyo, JP;
Yukio Takahashi, Tokyo, JP;
Kunihiko Kawasaki, Tokyo, JP;
Hiroshi Momoi, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A multilayer inductor component has a multilayer part having a plurality of magnetic layers laminated therein and a conductor part arranged within the multilayer part. The magnetic layers are formed from a ferrite material and an additive. The ferrite material contains FeO, NiO, CuO, and ZnO. FeOis 30 to 45 mol %. NiO is 45 to 58 mol %. CuO is 6 to 10 mol %. ZnO is 0 to 3 mol %. The additive contains CoO. The content of CoO is 0.1 to 2.5 mass % with respect to the ferrite material as a whole. The multilayer inductor component has an impedance peak of 500 Ω or greater at an operating frequency of 1 GHz or higher.