SO

Seiichi Okimura

Yamaha: 1 patents #1,232 of 2,001Top 65%
Overall (All Time): #2,878,251 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

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