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. 25, 2022
Filed:
Apr. 24, 2019
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Yuuichi Kawaguchi, Tokyo, JP;
Masanori Suzuki, Tokyo, JP;
Naoaki Fujii, Tokyo, JP;
Tomonaga Nishikawa, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 5/04 (2006.01); H01F 41/04 (2006.01); H01F 1/06 (2006.01); H01F 5/06 (2006.01);
U.S. Cl.
CPC ...
H01F 5/04 (2013.01); H01F 1/06 (2013.01); H01F 5/06 (2013.01); H01F 41/04 (2013.01);
Abstract
Disclosed herein is a coil component that includes: a magnetic element body containing magnetic powder, the magnetic element body having first and second surfaces; a coil conductor embedded in the magnetic element body; and an external terminal connected to the coil conductor and exposed on the first surface of the magnetic element body. The second surface of the magnetic element body is free from the external terminal. The first surface is greater in surface roughness than the second surface.