Invention Grant
- Patent Title: Method of producing surface-mount inductor
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Application No.: US14279032Application Date: 2014-05-15
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Publication No.: US09659705B2Publication Date: 2017-05-23
- Inventor: Keita Muneuchi , Masaaki Totsuka , Chitoshi Sakai , Kunio Sasamori
- Applicant: TOKO, INC.
- Applicant Address: JP Nagaokakyo-Shi
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Nagaokakyo-Shi
- Agency: Cozen O'Connor
- Priority: JP2013-104668 20130517
- Main IPC: H01F41/06
- IPC: H01F41/06 ; H01F41/10 ; H01F17/04 ; H01F41/00 ; H01F41/12 ; H01F41/076 ; H01F41/063 ; H01F41/066 ; H01F27/29

Abstract:
A method of producing a surface-mount inductor including an external electrode having high fixing strength with respect to an element body even in a high-humidity environment. The method includes the steps of: winding an electrically-conductive wire to form a coil; forming a core using a sealant primarily containing a metal magnetic powder and a resin in such a manner as to encapsulate the coil in the sealant while allowing each of opposite ends of the coil to be at least partially exposed on a surface of the core; reducing smoothness of a surface of at least a part of a portion of the core on which an external electrode is formed as compared to a surface therearound; and forming the external electrode on the core in such a manner as to be electrically conducted with the coil.
Public/Granted literature
- US20140338185A1 Method Of Producing Surface-Mount Inductor Public/Granted day:2014-11-20
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