RH

Ryoichi Hamanaka

RC Rion Co.: 1 patents #4 of 22Top 20%
Overall (2021): #278,515 of 548,734Top 55%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10888253 Audiometer Kaori Sato 2021-01-12