Fumio Ootsu

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Saseho, Nagasaki, JA

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Patents Grantslast 30 patents

Information Patent Grant
Transducer for conversion of tidal current energy
- Patent number 4,071,305
- Issue date Jan 31, 1978
- Fumio Ootsu
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Transducer for conversion of sea water-energy
- Patent number 4,060,344
- Issue date Nov 29, 1977
- Fumio Ootsu
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...