Inventor
YOSHIKAWA TOSHIFUMI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIKAWA TOSHIFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
8 patentsUS5760492AJun 2, 1998
Control system for power transmission and distribution system
HITACHI LTD78 citations93
US7545053B2Jun 9, 2009
Power supply and power supply method upon interruption of electric service
HITACHI LTD45 citations89
US7562746B2Jul 21, 2009
Method, system, and display for elevator allocation using multi-dimensional coordinates
HITACHI LTD11 citations81
US7426982B2Sep 23, 2008
Elevator group supervisory control system
HITACHI LTD8 citations72
US6492790B2Dec 10, 2002
Driving system for driving AC motor
HITACHI LTD10 citations70
US7740111B2Jun 22, 2010
Elevator group supervisory control system with route preparation section
HITACHI LTD4 citations61
US7730999B2Jun 8, 2010
Elevator group supervisory control system using target route preparation
HITACHI LTD1 citations61
US7888893B2Feb 15, 2011
Control apparatus and method for linear synchronous motor
HITACHI LTD2 citations59