US 12,334,241 B2
Coil component
Takanori Yoshizawa, Tokyo (JP)
Assigned to TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed by TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed on Sep. 17, 2021, as Appl. No. 17/478,563.
Claims priority of application No. 2020-164461 (JP), filed on Sep. 30, 2020.
Prior Publication US 2022/0102051 A1, Mar. 31, 2022
Int. Cl. H01F 27/28 (2006.01); H01F 27/255 (2006.01); H01F 41/02 (2006.01); H01F 27/06 (2006.01)
CPC H01F 27/255 (2013.01) [H01F 41/0266 (2013.01); H01F 2027/065 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A coil component comprising:
a non-conductive base body having on its outer surface a first region that has a first reflectance, a second region that has a second reflectance lower than the first reflectance, and a third region that is surrounded by the second region and has a third reflectance higher than the second reflectance, the third region has a shape of a sign, and wherein the first reflectance, the second reflectance, and third reflectance are determined via a relative reflectance measurement method that includes irradiating the base body with a measurement light and detecting light reflected from the outer surface of the base body;
a coil conductor provided in the non-conductive base body; and
an external electrode provided on the non-conductive base body, wherein both the coil conductor and the external electrode are formed of conductive material.