Inventor
TSUTSUI YOSHIO
JP13 patents
Patents
13 patentsUS5177677AJan 5, 1993
Power conversion system
HITACHI LTD87 citations96
US5250890AOct 5, 1993
Inverter control apparatus
HITACHI LTD59 citations95
US5587891ADec 24, 1996
Electric power converting apparatus
HITACHI LTD35 citations92
US5532569AJul 2, 1996
Inverter control apparatus
HITACHI LTD33 citations92
US5481448AJan 2, 1996
Multilevel inverter having voltage dividing capacitors distributed across multiple arms
HITACHI LTD29 citations92
US5467262ANov 14, 1995
Electric power converting apparatus
HITACHI LTD41 citations92
US5461556AOct 24, 1995
Power converter
HITACHI LTD42 citations92
US4701682AOct 20, 1987
Control system for maintaining traction of rolling stock
HITACHI LTD53 citations90
US5400242AMar 21, 1995
Multi-series inverter arrangement
HITACHI LTD8 citations74
US5375050ADec 20, 1994
Electric power converter arrangement and electric rolling stock control device using the same
HITACHI LTD17 citations74
US5535114AJul 9, 1996
Power converter
HITACHI LTD15 citations73
US4700283AOct 13, 1987
Control system for an electric locomotive having AC to DC converters
HITACHI LTD18 citations71
US4245291AJan 13, 1981
Electric power converter apparatus for an a.c. electric rolling stock
HITACHI LTD6 citations62