Burgess, Ryan and Wayne
High frequency attenuator using ferrite beads
 An attenuator for use in filtering high-frequency waves propagated in a transmission line, comprising ferrite beads having a conductor passed therethrough which are enclosed firmly within a mixture having powder of ferrimagnetic material dispersed in an organic high polymer. 
TDK Electronics Co., Ltd.
H H
H01J H01P
additional inventional
Ken Masaaki Hiroshi
Ishino Fukuda Yamashita