Inventor · disambiguated record
Toshifumi Yoshikawa
Also filed as: YOSHIKAWA TOSHIFUMI
9 granted patents·2 pending applications·173 citations·filing 1996–2013
89Inventor score
Top patents by PatentIndex Score
11 records- 0175US7426982B2Elevator group supervisory control systemHITACHI LTD·Filed 2005·Granted Sep 23, 2008·8 cites·6 claims
- 0274US7562746B2Method, system, and display for elevator allocation using multi-dimensional coordinatesHITACHI LTD·Filed 2006·Granted Jul 21, 2009·11 cites·8 claims
- 0374US7545053B2Power supply and power supply method upon interruption of electric serviceHITACHI LTD·Filed 2002·Granted Jun 9, 2009·45 cites·2 claims
- 0474US5760492AControl system for power transmission and distribution systemHITACHI LTD·Filed 1996·Granted Jun 2, 1998·78 cites·15 claims
- 0569US6949809B2Light receiving element, light detector with built-in circuitry and optical pickupSHARP KK·Filed 2002·Granted Sep 27, 2005·14 cites·31 claims
- 0664US7888893B2Control apparatus and method for linear synchronous motorHITACHI LTD·Filed 2010·Granted Feb 15, 2011·2 cites·3 claims
- 0763US7740111B2Elevator group supervisory control system with route preparation sectionHITACHI LTD·Filed 2009·Granted Jun 22, 2010·4 cites·5 claims
- 0855US6492790B2Driving system for driving AC motorHITACHI LTD·Filed 2001·Granted Dec 10, 2002·10 cites·9 claims
- 0950US7730999B2Elevator group supervisory control system using target route preparationHITACHI LTD·Filed 2008·Granted Jun 8, 2010·1 cites·4 claims
- 1044US2014081508A1Automotive Control Unit and Automotive Control SystemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Application pending·0 cites
- 1134US2006043921A1Control apparatus and method for linear synchronous motorNAGURA HIROKAZU·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →