RH

Ryuji Hashimoto

Yamaha: 2 patents #28 of 178Top 20%
Overall (2019): #125,266 of 560,194Top 25%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10497343 Reed for a musical instrument Ryo Shinoda 2019-12-03
10403248 Drum head 2019-09-03