SO

Seiichi Okimura

Yamaha: 1 patents #41 of 119Top 35%
Overall (2018): #244,352 of 503,207Top 50%
1
Patents 2018

Issued Patents 2018

Patent #TitleCo-InventorsDate
9905204 Pivotal supporting structure for fallboard of keyboard musical instrument 2018-02-27