Inventor
TOYOTA EIICHI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “TOYOTA EIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
18 patentsUS7075306B2Jul 11, 2006
Power control unit
HITACHI LTD49 citations96
US6166514ADec 26, 2000
Apparatus and method for controlling induction motor
HITACHI LTD69 citations96
US7692430B2Apr 6, 2010
Power control unit
HITACHI LTD14 citations92
US6456909B1Sep 24, 2002
Control apparatus of electric vehicle
HITACHI LTD47 citations92
US5587891ADec 24, 1996
Electric power converting apparatus
HITACHI LTD35 citations92
US5506765AApr 9, 1996
Control apparatus of power converter and control apparatus of electric motor vehicle
HITACHI LTD38 citations92
US5467262ANov 14, 1995
Electric power converting apparatus
HITACHI LTD41 citations92
US5461556AOct 24, 1995
Power converter
HITACHI LTD42 citations92
US5925929AJul 20, 1999
Cooling apparatus for electronic elements
HITACHI LTD46 citations90
US4066230AJan 3, 1978
Automatic braking or acceleration control system for a vehicle
HITACHI LTD32 citations90
US5375050ADec 20, 1994
Electric power converter arrangement and electric rolling stock control device using the same
HITACHI LTD17 citations74
US4618930AOct 21, 1986
Automatic train control apparatus
HITACHI LTD17 citations74
US7965056B2Jun 21, 2011
Control apparatus of power conversion system
HITACHI LTD6 citations73
US7319333B2Jan 15, 2008
Power control unit
HITACHI LTD7 citations73
US5535114AJul 9, 1996
Power converter
HITACHI LTD15 citations73
US4093162AJun 6, 1978
Train operation control apparatus
HITACHI LTD18 citations72
US5583385ADec 10, 1996
Power converting device for reducing an induction problem
HITACHI LTD11 citations70
US7466103B2Dec 16, 2008
Battery module
HITACHI LTD5 citations62