Inventor · disambiguated record
Yasuteru Oono
Also filed as: OONO YASUTERU
10 granted patents·311 citations·filing 1987–1994
92Inventor score
Files withHITACHI LTD10
Top patents by PatentIndex Score
10 records- 0191US4816696AVariable-speed pumped-storage power generating systemHITACHI LTD·Filed 1987·Granted Mar 28, 1989·79 cites·4 claims
- 0287US4812729AProtecting apparatus for secondary excitation type variable speed AC generator/motorHITACHI LTD·Filed 1987·Granted Mar 14, 1989·64 cites·17 claims
- 0382US4952852APower system and synchronizing breakers for a variable speed generator motor systemHITACHI LTD·Filed 1988·Granted Aug 28, 1990·48 cites·6 claims
- 0470US4812730AVariable-speed generator/motor systemHITACHI LTD·Filed 1987·Granted Mar 14, 1989·28 cites·8 claims
- 0566US4870339AVariable-speed power generating systemHITACHI LTD·Filed 1988·Granted Sep 26, 1989·22 cites·9 claims
- 0662US5561358AVariable speed pumping-up generatorHITACHI LTD·Filed 1994·Granted Oct 1, 1996·22 cites·5 claims
- 0751US4980629AAC-excited generator/motor apparatusHITACHI LTD·Filed 1989·Granted Dec 25, 1990·13 cites·19 claims
- 0850US5265002AFault protection for a multiphase bridge power converterHITACHI LTD·Filed 1991·Granted Nov 23, 1993·15 cites·12 claims
- 0946US5090872AMethod of controlling the operation of a pump in a pumping installation by detecting counterflowHITACHI LTD·Filed 1989·Granted Feb 25, 1992·11 cites·5 claims
- 1043US5456115AMethod of counterflow through a pump and method of controlling the operation of a pump in a pumping installationHITACHI LTD·Filed 1993·Granted Oct 10, 1995·9 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →