US 11,915,849 B2
Inductor component
Rikiya Sano, Nagaokakyo (JP); and Hiroyuki Kanbara, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Apr. 8, 2020, as Appl. No. 16/843,686.
Claims priority of application No. 2019-103853 (JP), filed on Jun. 3, 2019.
Prior Publication US 2020/0381159 A1, Dec. 3, 2020
Int. Cl. H01F 17/00 (2006.01); H01F 27/28 (2006.01); H01F 41/04 (2006.01); H01F 27/32 (2006.01); H05K 3/12 (2006.01)
CPC H01F 17/0013 (2013.01) [H01F 27/2804 (2013.01); H01F 27/32 (2013.01); H01F 41/041 (2013.01); H05K 3/12 (2013.01); H01F 2017/004 (2013.01); H01F 2027/2809 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An inductor component comprising:
an element body, the element body including a plurality of insulating layers and a mark layer constituting a portion of an outer surface of the element body, the plurality of insulating layers and the mark layer containing K, and a K abundance ratio (atom %) in the mark layer being higher than a K abundance ratio (atom %) in all of the plurality of insulating layers;
a helically wound coil disposed in the element body; and
an external electrode disposed in the element body and electrically connected to the coil,
wherein the plurality of insulating layers each contains an amorphous intra-insulating-layer base material, and
the mark layer includes an amorphous intra-mark-layer base material and an intra-mark-layer crystal containing at least one or more pigments.