Invention Grant
- Patent Title: Inductor
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Application No.: US16577223Application Date: 2019-09-20
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Publication No.: US11430603B2Publication Date: 2022-08-30
- Inventor: Seigou Shirai , Kachiyasu Satou
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto-fu
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto-fu
- Agency: Studebaker & Brackett PC
- Priority: JPJP2018-179301 20180925
- Main IPC: H01F27/30
- IPC: H01F27/30 ; H01F27/26

Abstract:
An inductor includes a core including a multilayer part in which magnetic layers and insulating layers are alternately stacked; a coil including a wound part having a winding axis substantially perpendicular to a stacking direction of the multilayer part; and an element body. The multilayer part includes a first multilayer part in which first magnetic layers and insulating layers are alternately stacked and second and third multilayer parts in which second magnetic layers and insulating layers are alternately stacked, the electrical resistivity and/or relative magnetic permeability of the second magnetic layers being larger than those of the first magnetic layers. The first multilayer part has first and second surfaces that are perpendicular to the stacking direction and face each other and third and fourth surfaces that are parallel to the stacking and winding axis directions. The second and third multilayer parts are arranged on the first and second surfaces.
Public/Granted literature
- US20200098512A1 INDUCTOR Public/Granted day:2020-03-26
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