FO

Fumio Ootsu

📍 Hirado, JP: #1 of 2 inventorsTop 50%
Overall (All Time): #2,371,712 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4289425 Underwater accumulator for pressurized gas — 1981-09-15
4193265 Transducer for converting the energy of ocean currents — 1980-03-18