YK

Yosuke Kumagawa

Overall (All Time): #1,986,889 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10383770 Auditory sensitivity adjustment device 2019-08-20
9717632 Auditory sensitivity adjustment device 2017-08-01