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. 08, 2025
Filed:
Mar. 17, 2021
Taiyo Yuden Co., Ltd., Tokyo, JP;
Osamu Takahashi, Takasaki, JP;
Yasuyuki Taki, Takasaki, JP;
TAIYO YUDEN CO., LTD, Tokyo, JP;
Abstract
A coil component includes: a substrate body containing metal magnetic grains whose primary component is iron and which contains silicon and a metal that oxidizes more easily than iron, and an oxide layer covering the surfaces of the metal magnetic grains and joining multiple numbers of the metal magnetic grains together; a coil conductor provided in the substrate body; external electrodes provided on the surface of the substrate body and electrically connected to the coil conductor; and a bonding part positioned between the metal magnetic grains and the external electrodes, wherein the concentration of iron decreases in a substantially continuous manner from the metal magnetic grains to the external electrodes. The external electrodes can have improved joining strength.