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:
Sep. 09, 2025
Filed:
Sep. 06, 2022
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Abstract
A highly reliable coil component having reduced electric resistance and improved bonding strength in a connection portion between a coil conductor and an external electrode. A coil component includes an element body including a coil conductor including a wound conductive wire coated with an insulating film, a magnetic portion containing metal magnetic particles and resin, and an external electrode on a surface of the element body and electrically connected to exposed surfaces, which are exposed on the surface of the element body, of extended portions of the coil conductor. The external electrode includes at least one or more layers. When an average crystal grain size of crystal grains constituting the coil conductor is defined as a and an average crystal grain size of crystal grains constituting a base electrode layer of the external electrode directly connected to the coil conductor is defined as b, a>b is satisfied.