Inventor
IBORI SATOSHI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “IBORI SATOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS5091823AFeb 25, 1992
Inverter device
HITACHI LTD220 citations96
US5465202ANov 7, 1995
Inverter apparatus provided with electric discharge control circuit of dc smoothing capacitor and method of controlling the same
HITACHI LTD54 citations95
US5210479AMay 11, 1993
Drive circuit for an insulated gate transistor having overcurrent detecting and adjusting circuits
HITACHI LTD58 citations94
US4451771AMay 29, 1984
Apparatus for controlling AC motor
HITACHI LTD42 citations92
US6794854B2Sep 21, 2004
Vehicle power converted with shunt resistor having plate-shape resistive member
HITACHI LTD19 citations91
US5175483ADec 29, 1992
Method and an apparatus for computing moment of inertia in a motor speed controller, and a speed control method and apparatus for a motor
HITACHI LTD27 citations91
US4767976AAug 30, 1988
Control system for PWM inverter
HITACHI LTD48 citations91
US4779183AOct 18, 1988
Method and apparatus for selectively controlling an operation mode of a PWM inverter between an asychronous mode and a synchronous mode modulation
HITACHI LTD22 citations80
US6873240B2Mar 29, 2005
Power converter
HITACHI LTD7 citations73
US6960980B2Nov 1, 2005
Power converter with shunt resistor
HITACHI LTD6 citations72
US5121283AJun 9, 1992
Overcurrent protective circuit for electrostatic self-turn-off devices
HITACHI LTD9 citations72
US4516065AMay 7, 1985
Control apparatus for AC motors
HITACHI LTD18 citations72
US5177678AJan 5, 1993
Inverter apparatus for preventing an overincrease of output frequency
HITACHI LTD11 citations67
US4689542AAug 25, 1987
Method and apparatus for controlling induction motor
HITACHI LTD14 citations65
HITACHI IND EQUIPMENT SYS
12 patentsUS7745952B2Jun 29, 2010
Electric circuit module with improved heat dissipation characteristics using a fixing tool for fixing an electric apparatus to a heat sink
HITACHI IND EQUIPMENT SYS23 citations93
US7206204B2Apr 17, 2007
Electric circuit module
HITACHI IND EQUIPMENT SYS53 citations92
US8385078B2Feb 26, 2013
Power transducer
HITACHI IND EQUIPMENT SYS9 citations84
US7904254B2Mar 8, 2011
Power conversion apparatus and method of estimating power cycle life
HITACHI IND EQUIPMENT SYS9 citations83
US7394668B2Jul 1, 2008
Switching power supply circuit and frequency converter
HITACHI IND EQUIPMENT SYS7 citations73
US7272004B2Sep 18, 2007
Frequency converter
HITACHI IND EQUIPMENT SYS6 citations71
US7054157B2May 30, 2006
Frequency converter
HITACHI IND EQUIPMENT SYS10 citations71
US7643304B2Jan 5, 2010
Filter apparatus and frequency converter to which the filter apparatus is connected
HITACHI IND EQUIPMENT SYS6 citations62
US7151680B2Dec 19, 2006
Switching power supply circuit and frequency converter
HITACHI IND EQUIPMENT SYS3 citations62
US7518890B2Apr 14, 2009
AC/DC/AC converter with reduced inductance in the DC filter capacitors
HITACHI IND EQUIPMENT SYS4 citations61
US8848384B2Sep 30, 2014
Power transducer
HITACHI IND EQUIPMENT SYS0 citations52
US8378599B2Feb 19, 2013
Power transducer
HITACHI IND EQUIPMENT SYS0 citations52