公开(公告)号：US20210035731A1

公开(公告)日：2021-02-04

申请号：US17074168

申请日：2020-10-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yoshitoshi SHODA ,  Kozo SATO ,  Makoto MURAKAMI ,  Kunio SASAMORI ,  Naoto TAKAHASHI

IPC: H01F27/29 ,  H01F17/04 ,  H01F41/076 ,  H01F27/28 ,  H01F41/02

Abstract: A formed body incorporating a coil by using: a coil formed by winding a conductive wire, and a formed body incorporating the coil, the formed body being formed with a sealing material containing a resin and a magnetic material. The coil is formed by winding the conductive wire so that lead-out ends are positioned at an outer periphery of a wound portion. The formed body is formed so that surfaces of the coil are partially exposed on four side surfaces of the formed body which are parallel to a winding axis of the coil, and the area of a portion of the formed body outside the outer periphery of the wound portion is almost equal to or smaller than the area of a portion of the formed body inside an inner periphery of the wound portion of the coil.

公开(公告)号：US20200152374A1

公开(公告)日：2020-05-14

申请号：US16536223

申请日：2019-08-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kozo SATO ,  Mikiya AOKI ,  Hiroyuki AOKI ,  Kazuhisa KITAMURA

IPC: H01F27/29 ,  H01F27/255 ,  H01F27/28 ,  H01F27/32 ,  H01F3/08 ,  H01F17/04

Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion. The base portion has at least one ridge portion at which the upper surface and a side surface are in linear contact with each other. The pair of extended portions are each disposed such that a flat surface portion connected to a flat surface portion disposed at an inner side portion of a conductive wire located at an outer peripheral portion of the wound portion is close to the ridge portion.