TM

Toyosaku Matsumoto

NS Nippon Gakki Seizo: 2 patents #116 of 332Top 35%
Overall (All Time): #2,357,220 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4438510 Disk player system having a disk sucking function — 1984-03-20
4413161 Electro-acoustic transducer Takao Nakaya 1983-11-01