US 11,705,269 B2
Coil component
Makoto Yamamoto, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Mar. 25, 2020, as Appl. No. 16/830,190.
Claims priority of application No. 2019-061587 (JP), filed on Mar. 27, 2019.
Prior Publication US 2020/0312526 A1, Oct. 1, 2020
Int. Cl. H01F 27/28 (2006.01); H01F 27/255 (2006.01); H01F 41/04 (2006.01); H01F 41/02 (2006.01); H01F 27/29 (2006.01)
CPC H01F 27/2804 (2013.01) [H01F 27/255 (2013.01); H01F 27/29 (2013.01); H01F 41/0206 (2013.01); H01F 41/041 (2013.01); H01F 2027/2809 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A coil component comprising:
an element body including metal magnetic particles;
a coil conductor provided in the element body; and
a plurality of external electrodes provided on a surface of the element body,
the element body having a substantially rectangular parallelepiped shape including an upper surface and a lower surface that are substantially orthogonal to a winding axis of the coil conductor, a first side surface and a second side surface that face each other, and a third side surface and a fourth side surface that face each other, and
an average particle diameter of each of metal magnetic particles constituting the upper surface, metal magnetic particles constituting the lower surface, metal magnetic particles constituting the first side surface, and metal magnetic particles constituting the second side surface being smaller than an average particle diameter of metal magnetic particles existing inside a winding portion of the coil conductor.