RH

Ryoichi Hamanaka

RC Rion Co.: 1 patents #2 of 14Top 15%
Overall (2019): #288,422 of 560,194Top 55%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10390126 Earphone for audiometer, and audiometer Shinichi ISHIKAWA, Kaori Sato 2019-08-20