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. 01, 2025
Filed:
Dec. 06, 2021
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventors:
Kazuki Yoshida, Tokyo, JP;
Hitoshi Matsuura, Tokyo, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 17/00 (2006.01); H01F 17/04 (2006.01); H01F 27/29 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 41/0246 (2013.01); H01F 17/0013 (2013.01); H01F 17/04 (2013.01); H01F 27/292 (2013.01); H01F 2017/048 (2013.01);
Abstract
A coil component according to one or more embodiments of the invention includes a base body including a plurality of metal magnetic particles, where each metal magnetic particle contains a metal element, a coil conductor including a buried portion provided in the base body and an exposed portion externally exposed through the base body, where the coil conductor is mainly composed of copper, and an insulating oxide layer covering a surface of the buried portion, where the insulating oxide layer contains copper element and an oxide of the metal element contained in the metal magnetic particles.