RK

Ryohei Kanayama

RO Roland: 1 patents #6 of 20Top 30%
Overall (2020): #290,932 of 565,922Top 55%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D881984 Percussion detecting device Shigeru Sawada, Kotaro Nomura 2020-04-21