KN

Kazuteru Nishiyama

RC Rion Co.: 2 patents #29 of 139Top 25%
Overall (All Time): #1,903,564 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10609495 Hearing aid Nobuhiko Hiruma 2020-03-31
9357315 Hearing aid, loudspeaker, and feedback canceller Masahiro Sunohara 2016-05-31