Inventor · disambiguated record
Yoshio Tsutsui
Also filed as: TSUTSUI YOSHIO
13 granted patents·443 citations·filing 1979–1995
94Inventor score
Files withHITACHI LTD13
Top patents by PatentIndex Score
13 records- 0186US5250890AInverter control apparatusHITACHI LTD·Filed 1988·Granted Oct 5, 1993·59 cites·31 claims
- 0285US4701682AControl system for maintaining traction of rolling stockHITACHI LTD·Filed 1986·Granted Oct 20, 1987·53 cites·8 claims
- 0382US5177677APower conversion systemHITACHI LTD·Filed 1990·Granted Jan 5, 1993·87 cites·28 claims
- 0476US5461556APower converterHITACHI LTD·Filed 1992·Granted Oct 24, 1995·42 cites·1 claims
- 0575US5467262AElectric power converting apparatusHITACHI LTD·Filed 1993·Granted Nov 14, 1995·41 cites·21 claims
- 0669US5587891AElectric power converting apparatusHITACHI LTD·Filed 1995·Granted Dec 24, 1996·35 cites·1 claims
- 0766US4700283AControl system for an electric locomotive having AC to DC convertersHITACHI LTD·Filed 1986·Granted Oct 13, 1987·18 cites·29 claims
- 0865US5532569AInverter control apparatusHITACHI LTD·Filed 1993·Granted Jul 2, 1996·33 cites·21 claims
- 0963US5481448AMultilevel inverter having voltage dividing capacitors distributed across multiple armsHITACHI LTD·Filed 1994·Granted Jan 2, 1996·29 cites·16 claims
- 1060US5535114APower converterHITACHI LTD·Filed 1995·Granted Jul 9, 1996·15 cites·14 claims
- 1143US5375050AElectric power converter arrangement and electric rolling stock control device using the sameHITACHI LTD·Filed 1992·Granted Dec 20, 1994·17 cites·10 claims
- 1243US4245291AElectric power converter apparatus for an a.c. electric rolling stockHITACHI LTD·Filed 1979·Granted Jan 13, 1981·6 cites·3 claims
- 1337US5400242AMulti-series inverter arrangementHITACHI LTD·Filed 1993·Granted Mar 21, 1995·8 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →