Inventor
SUDA KOICHI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “SUDA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS7126802B2Oct 24, 2006
Drive circuit for switching device
HITACHI LTD13 citations92
US5351182ASep 27, 1994
Level shift circuit and inverter apparatus using the same
HITACHI LTD26 citations92
US6580108B1Jun 17, 2003
Insulated gate bipolar transistor decreasing the gate resistance
HITACHI LTD44 citations89
US4758525AJul 19, 1988
Method of making light-receiving diode
HITACHI LTD39 citations89
US7746614B2Jun 29, 2010
Drive circuit for switching device
HITACHI LTD9 citations84
US7483250B2Jan 27, 2009
Drive circuit for switching device
HITACHI LTD10 citations84
US7295412B2Nov 13, 2007
Protection circuit for power management semiconductor devices and power converter having the protection circuit
HITACHI LTD13 citations84
US5184272AFeb 2, 1993
High-side switch with overcurrent protecting circuit
HITACHI LTD19 citations72
US7696650B2Apr 13, 2010
Driving circuit for switching elements
HITACHI LTD2 citations63
US7675727B2Mar 9, 2010
Protection circuit for power management semiconductor devices and power converter having the protection circuit
HITACHI LTD5 citations63
US7564294B2Jul 21, 2009
Inverter apparatus
HITACHI LTD2 citations63
US7336118B2Feb 26, 2008
Inverter apparatus
HITACHI LTD3 citations63
AISAN IND
9 patentsUS5906294AMay 25, 1999
Powder supplying device utilizing an ultrasonic motor
AISAN IND31 citations92
US5426844AJun 27, 1995
Method of making a electromagnetic rotation detector
AISAN IND21 citations89
US6776823B2Aug 17, 2004
Gas/liquid separating devices
AISAN IND14 citations82
US4366799AJan 4, 1983
Exhaust gas recirculator
AISAN IND18 citations74
US6520206B2Feb 18, 2003
Bi-directional pilot type electromagnetic valves
AISAN IND10 citations73
US6823885B2Nov 30, 2004
Liquid drains having liquid level adjusting mechanisms
AISAN IND11 citations72
US5363033ANov 8, 1994
Electromagnetic rotation detector having a magnet of a symmetrically cut out cross-section for electrical connections
AISAN IND13 citations70
US4960089AOct 2, 1990
Combustion system
AISAN IND7 citations66
US4822532AApr 18, 1989
Carburetor
AISAN IND5 citations60
TOYOTA MOTOR CO LTD
2 patentsUS4738112AApr 19, 1988
Method and device for controlling brake booster supplementary vacuum pump ensuring good booster vacuum and low pump wear
TOYOTA MOTOR CO LTD64 citations96
US4694734ASep 22, 1987
Sealing construction for slide type vacuum pump with finger portions of spring element pressing cylindrical portion of seal element against cylinder bore
TOYOTA MOTOR CO LTD5 citations62