YW

Yohei WADA

Yamaha: 2 patents #899 of 2,001Top 45%
Overall (All Time): #1,712,602 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12300206 Keyboard apparatus and proximity sensor Soichi Takigawa, Koji Yataka, Yoshinari Nakamura, Takahiro Asano 2025-05-13
9472175 Drum head and drum Ryuji Hashimoto 2016-10-18