DY

Daichi Yamakawa

AU Audio-Technica: 1 patents #116 of 180Top 65%
Overall (All Time): #2,777,575 of 4,157,543Top 70%
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Patent #TitleCo-InventorsDate
D876429 Pick-up cartridge Aya Mashimo, Yosuke Takubo, Shohei Araki 2020-02-25