Inventor · disambiguated record
Ikuo Yamato
Also filed as: YAMATO IKUO
12 granted patents·1 pending application·798 citations·filing 1987–2003
94Inventor score
Top patents by PatentIndex Score
13 records- 0196US5297015APower supply control systemHITACHI LTD·Filed 1990·Granted Mar 22, 1994·170 cites·27 claims
- 0293US5446645AInverter apparatus and uinterruptible power supply using the sameHITACHI LTD·Filed 1993·Granted Aug 29, 1995·279 cites·4 claims
- 0387US4777575ASwitching power supplyHITACHI LTD·Filed 1987·Granted Oct 11, 1988·56 cites·29 claims
- 0486US6525510B1Vehicle operating systemHITACHI LTD·Filed 2002·Granted Feb 25, 2003·67 cites·16 claims
- 0583US7104363B2Power transmission system for elevatorMORI KAZUHISA·Filed 2001·Granted Sep 12, 2006·29 cites·15 claims
- 0676US5285365APower conversion system, method for controlling the same, and uninterruptible power supply using the sameHITACHI LTD·Filed 1991·Granted Feb 8, 1994·49 cites·15 claims
- 0773US5115386ACircuit for controlling an electric power supply apparatus, a method therefor and an uninterruptible power supplyHITACHI LTD·Filed 1990·Granted May 19, 1992·48 cites·20 claims
- 0871US6397611B1Air conditioner and brushless motor control unitHITACHI LTD·Filed 2000·Granted Jun 4, 2002·22 cites·7 claims
- 0965US4878163APulse width modulated inverter with high-to-low frequency output converterHITACHI LTD·Filed 1988·Granted Oct 31, 1989·23 cites·6 claims
- 1064US5262935AParallel inverter control apparatusHITACHI LTD·Filed 1991·Granted Nov 16, 1993·41 cites·13 claims
- 1148US7199547B2Apparatus, method or system for controlling mobile bodyHITACHI LTD·Filed 2001·Granted Apr 3, 2007·6 cites·16 claims
- 1242US4855887ACurrent and frequency converter having means to reduce switching lossesHITACHI LTD·Filed 1988·Granted Aug 8, 1989·8 cites·9 claims
- 1340US2004026177A1ElevatorFiled 2003·Application pending·0 cites
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