Kazuya Washio

Yamaha: 2 patents #17 of 171Top 10%

Overall (2017): #134,614 of 506,227Top 30%

Patents 2017

Issued Patents 2017

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D804448	Speaker	—	2017-12-05
D778342	Electronic keyboard	—	2017-02-07