Inventor · disambiguated record
Isao Sumida
Also filed as: SUMIDA ISAO
10 granted patents·182 citations·filing 1974–1992
90Inventor score
Files withHITACHI LTD10
Top patents by PatentIndex Score
10 records- 0186US5272737ANuclear reactor installationHITACHI LTD·Filed 1991·Granted Dec 21, 1993·34 cites·14 claims
- 0279US5295169AReactor containment facilitiesHITACHI LTD·Filed 1991·Granted Mar 15, 1994·25 cites·36 claims
- 0379US5211906AReactor containment vesselHITACHI LTD·Filed 1990·Granted May 18, 1993·25 cites·7 claims
- 0478US4877574AMethod of and apparatus for controlling power of natural circulation reactorHITACHI LTD·Filed 1988·Granted Oct 31, 1989·19 cites·10 claims
- 0577US4879087ANuclear power plantHITACHI LTD·Filed 1988·Granted Nov 7, 1989·34 cites·17 claims
- 0668US5120490ALiquid filling method for a high-temperature and high-pressure vessel and apparatus thereforHITACHI LTD·Filed 1989·Granted Jun 9, 1992·15 cites·20 claims
- 0761US5021212APrimary containment vessel with outer poolHITACHI LTD·Filed 1990·Granted Jun 4, 1991·13 cites·10 claims
- 0840US5217680ALiquid filling method for a high-temperature and high-pressure vessel and apparatus thereforHITACHI LTD·Filed 1992·Granted Jun 8, 1993·5 cites·3 claims
- 0940US4440151ASolar heat collectorHITACHI LTD·Filed 1981·Granted Apr 3, 1984·10 cites·16 claims
- 1030US3996790AApparatus for measuring saturation temperature of liquid metal oxideHITACHI LTD·Filed 1974·Granted Dec 14, 1976·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →