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:
Oct. 24, 2023
Filed:
Sep. 21, 2020
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventors:
Kenji Yazawa, Tokyo, JP;
Atsushi Shimamura, Tokyo, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/255 (2006.01); H01F 1/34 (2006.01); H01F 27/28 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 27/255 (2013.01); H01F 1/344 (2013.01); H01F 27/28 (2013.01); H01F 41/0246 (2013.01);
Abstract
A coil component according to one embodiment of the invention includes a core and a winding wound around the core. The core includes a plurality of ferrite crystal grains and a plurality of Bi segregated regions situated at a grain boundary of the plurality of ferrite crystal grains. In one embodiment, a plurality of line profiles obtained by detecting the content of Bi along a plurality of scanning lines intersecting with the grain boundary include at least one first line profile that has a detection peak of Bi at the grain boundary and two or more second line profiles that have no detection peak of Bi.