AK

Akihiko Komatsu

Yamaha: 4 patents #8 of 230Top 4%
Overall (2011): #30,721 of 364,097Top 9%
4
Patents 2011

Issued Patents 2011

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8013233 Keyboard apparatus — 2011-09-06
7943843 Reactive force control apparatus for pedal of electronic keyboard instrument — 2011-05-17
7935875 Key actuating apparatus — 2011-05-03
7919708 Electronic musical instrument — 2011-04-05