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.

Date of Patent:
Oct. 01, 2024

Filed:

Jul. 31, 2020
Applicant:

Taiyo Yuden Co., Ltd., Tokyo, JP;

Inventors:

Daiki Mimura, Takasaki, JP;

Toshiyuki Yagasaki, Takasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 7/06 (2006.01); H01F 17/00 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 27/32 (2006.01); H01F 41/04 (2006.01);
U.S. Cl.
CPC ...
H01F 27/29 (2013.01); H01F 17/0006 (2013.01); H01F 27/28 (2013.01); H01F 27/327 (2013.01); H01F 41/04 (2013.01); H01F 41/042 (2013.01); H01F 41/046 (2013.01);
Abstract

A method of manufacturing a coil component having terminal electrodes with high mounting strength, includes: embedding an air-core coil in complex magnetic material being a mixture of resin and metal magnetic grains, molding the magnetic material so that both ends of the coil are exposed on its surface, curing the resin in the molding, thereby obtaining a magnetic body in which the coil is embedded, polishing and etching a surface where the ends of the coil are exposed, sputtering metal material onto an etched surface of the magnetic body, thereby forming an underlying layer across a surface of the magnetic body and ends of the coil, and then forming a cover layer that covers an outer side of the underlying layer, thereby forming terminal electrodes constituted by the underlying layer and cover layer.


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