Inventor
HORIE AKIRA
JP28 patents
⚠️ This page may combine multiple inventors who share the name “HORIE AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
17 patentsUS5801936ASep 1, 1998
Semiconductor module for a power conversion device
HITACHI LTD51 citations96
US5731970AMar 24, 1998
Power conversion device and semiconductor module suitable for use in the device
HITACHI LTD71 citations96
US5459655AOct 17, 1995
Neutral-point clamped inverter device using semiconductor modules
HITACHI LTD80 citations96
US6556460B2Apr 29, 2003
Method for controlling a vehicle provided with an electric power converter
HITACHI LTD22 citations93
US5461556AOct 24, 1995
Power converter
HITACHI LTD42 citations92
US5638266AJun 10, 1997
Free wheel diode arrangement for neutral point clamped electric power conversion apparatus
HITACHI LTD52 citations89
US7176645B2Feb 13, 2007
Control apparatus for electric railcar
HITACHI LTD10 citations83
US4924168AMay 8, 1990
Control apparatus for PWM-controlled, variable voltage/variable frequency inverters
HITACHI LTD22 citations80
US4785225ANov 15, 1988
Control apparatus for an induction motor
HITACHI LTD21 citations75
US5400242AMar 21, 1995
Multi-series inverter arrangement
HITACHI LTD8 citations74
US4626888ADec 2, 1986
Gate turn-off thyristor
HITACHI LTD11 citations74
US4500903AFeb 19, 1985
Semiconductor GTO switching device with radially elongated cathode emitter regions of increasing length
HITACHI LTD8 citations74
US5535114AJul 9, 1996
Power converter
HITACHI LTD15 citations73
US4672525AJun 9, 1987
Guard system for inverter apparatus
HITACHI LTD11 citations73
US6633495B2Oct 14, 2003
DC apparatus and vehicle using the same
HITACHI LTD6 citations71
US5583385ADec 10, 1996
Power converting device for reducing an induction problem
HITACHI LTD11 citations70
US4644240AFeb 17, 1987
Method and apparatus for controlling reverse-conducting GTO thyristor
HITACHI LTD3 citations63
KYOCERA DOCUMENT SOLUTIONS INC
5 patentsUS10472197B2Nov 12, 2019
Image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC2 citations72
US12313998B2May 27, 2025
Toner container capable of shortening time of cleaning task before reuse and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations52
US8708329B2Apr 29, 2014
Document conveying device and image forming apparatus including the same
KYOCERA DOCUMENT SOLUTIONS INC1 citations51
US10514642B2Dec 24, 2019
Image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations42
US9805295B2Oct 31, 2017
Image forming apparatus and operating device
KYOCERA DOCUMENT SOLUTIONS INC0 citations42