YK

Yutaro Kumagai

AU Audio-Technica: 26 patents #4 of 180Top 3%
SA Sato: 2 patents #61 of 223Top 30%
Overall (All Time): #133,490 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
D920292 Earphone Hiromichi Ozawa 2021-05-25
D905016 Headphone Yosuke Takubo 2020-12-15
D894153 Headset Mika Yoshino 2020-08-25