SY

Satoshi Yoshiizumi

Yamaha: 4 patents #621 of 2,001Top 35%
Overall (All Time): #1,228,066 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D687413 Speaker — 2013-08-06
D662081 Sound reproducing apparatus — 2012-06-19
D661687 Sound reproducing apparatus — 2012-06-12
D636757 Speaker — 2011-04-26