Assignee
FUJI ELECTRIC SYSTEMS CO LTD
JP·95 granted patents·8 pending applications·632 citations·filing 2003–2011
Top patents by PatentIndex Score
103 records- 0194US7741192B2Semiconductor device and manufacturing method thereofFUJI ELECTRIC SYSTEMS CO LTD·Filed 2005·Granted Jun 22, 2010·23 cites·8 claims
- 0291US7800167B2Semiconductor device, battery protection circuit and battery packFUJI ELECTRIC SYSTEMS CO LTD·Filed 2007·Granted Sep 21, 2010·23 cites·13 claims
- 0389US7906942B2Control circuit of DC-DC converter with synchronous rectifier adjusting signal to improve efficiency at light loads and control method thereofFUJI ELECTRIC SYSTEMS CO LTD·Filed 2007·Granted Mar 15, 2011·29 cites·24 claims
- 0489US7363174B2Apparatus and method for measuring a fluid flow rate profile using acoustic doppler effectFUJI ELECTRIC SYSTEMS CO LTD·Filed 2005·Granted Apr 22, 2008·24 cites·26 claims
- 0588US7994890B2Insulating transformer and power conversion deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Aug 9, 2011·16 cites·12 claims
- 0687US7919790B2Semiconductor device and method of producing the sameFUJI ELECTRIC SYSTEMS CO LTD·Filed 2009·Granted Apr 5, 2011·10 cites·14 claims
- 0787US7776672B2Semiconductor device and manufacturing method thereofFUJI ELECTRIC SYSTEMS CO LTD·Filed 2006·Granted Aug 17, 2010·12 cites·14 claims
- 0886US8014118B2Load driving circuit, driver IC having a load driving circuit, and plasma display panel having a driver ICFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Sep 6, 2011·8 cites·36 claims
- 0985US8030749B2Semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Oct 4, 2011·12 cites·9 claims
- 1084US7999633B2EMI filter with an integrated structure of common-mode inductors and differential-mode capacitors realized by flexible printed circuit boardFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Aug 16, 2011·16 cites·11 claims
- 1184US7821014B2Semiconductor device and manufacturing method thereof with a recessed backside substrate for breakdown voltage blockingFUJI ELECTRIC SYSTEMS CO LTD·Filed 2007·Granted Oct 26, 2010·11 cites·18 claims
- 1283US7799662B2Power semiconductor device with soft switching characteristic and manufacturing method for sameFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Sep 21, 2010·8 cites·10 claims
- 1381US7911020B2Semiconductor device having breakdown voltage maintaining structure and its manufacturing methodFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Mar 22, 2011·9 cites·20 claims
- 1480US7982248B2Junction field effect transistor, integrated circuit for switching power supply, and switching power supplyFUJI ELECTRIC SYSTEMS CO LTD·Filed 2007·Granted Jul 19, 2011·7 cites·4 claims
- 1580US7791135B2Insulated gate silicon carbide semiconductor device and method for manufacturing the sameFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Sep 7, 2010·7 cites·6 claims
- 1680US7737664B2Battery protective device and semiconductor integrated circuit deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Jun 15, 2010·23 cites·9 claims
- 1779US7999317B2Semiconductor device and manufacturing method thereofFUJI ELECTRIC SYSTEMS CO LTD·Filed 2009·Granted Aug 16, 2011·13 cites·10 claims
- 1879US7952893B2Integrated control circuit for controlling a switching power supply, switching power supply incorporating the same, and a method of controlling a switching power supplyFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted May 31, 2011·17 cites·17 claims
- 1979US7790557B2Method of manufacturing silicon carbide semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Sep 7, 2010·5 cites·3 claims
- 2078US7859864B2Switching power supply deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Dec 28, 2010·10 cites·9 claims
- 2178US7859860B2Switching power source device, switching power source control circuit, and switching power source device control methodFUJI ELECTRIC SYSTEMS CO LTD·Filed 2009·Granted Dec 28, 2010·9 cites·11 claims
- 2278US7626818B2Inverter apparatusFUJI ELECTRIC SYSTEMS CO LTD·Filed 2007·Granted Dec 1, 2009·17 cites·5 claims
- 2377US7971391B2Movable body driving apparatusFUJI ELECTRIC SYSTEMS CO LTD·Filed 2006·Granted Jul 5, 2011·16 cites·6 claims
- 2477US7947600B2Manufacturing method for micro-transformersFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted May 24, 2011·11 cites·6 claims
- 2577US7936152B2Switching power sourceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted May 3, 2011·13 cites·10 claims
- 2676US8013585B2DC-DC converter and DC-DC power conversion method employing overcurrent protectionFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Sep 6, 2011·13 cites·10 claims
- 2776US7965070B2Switching power supply with slope compensation circuit and added slope circuitFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Jun 21, 2011·17 cites·20 claims
- 2876US7947586B2Method of manufacturing a semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2010·Granted May 24, 2011·4 cites·12 claims
- 2975US7943439B2Method for manufacturing semiconductor apparatusFUJI ELECTRIC SYSTEMS CO LTD·Filed 2009·Granted May 17, 2011·6 cites·15 claims
- 3075US7795527B2Solar cell module and method for installing sameFUJI ELECTRIC SYSTEMS CO LTD·Filed 2005·Granted Sep 14, 2010·6 cites·11 claims
- 3173US7781258B2Manufacturing method of semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2009·Granted Aug 24, 2010·6 cites·16 claims
- 3271US7948780B2Semiconductor device for switching power supply control, startup circuit, and startup method for switching power supply deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2009·Granted May 24, 2011·10 cites·10 claims
- 3371US7737490B2Vertical and trench type insulated gate MOS semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2007·Granted Jun 15, 2010·4 cites·17 claims
- 3470US7932559B2Semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Apr 26, 2011·3 cites·10 claims
- 3570US7894212B2Switching power supply deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Feb 22, 2011·9 cites·18 claims
- 3670US7812578B2DC-DC converterFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Oct 12, 2010·8 cites·17 claims
- 3770US7781996B2Speed control device for electric motorFUJI ELECTRIC SYSTEMS CO LTD·Filed 2007·Granted Aug 24, 2010·7 cites·5 claims
- 3869US7876291B2Drive deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2006·Granted Jan 25, 2011·2 cites·13 claims
- 3969US7872282B2Semiconductor device and method of manufacturing sameFUJI ELECTRIC SYSTEMS CO LTD·Filed 2009·Granted Jan 18, 2011·4 cites·15 claims
- 4069US7732861B2Trench MOS type silicon carbide semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2009·Granted Jun 8, 2010·2 cites·1 claims
- 4168US7943991B2Semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2006·Granted May 17, 2011·3 cites·9 claims
- 4268US7859315B2Driver circuitFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Dec 28, 2010·5 cites·15 claims
- 4368US7077012B2Wedge and wedge unit for use in ultrasonic doppler flow meterFUJI ELECTRIC SYSTEMS CO LTD·Filed 2005·Granted Jul 18, 2006·7 cites·48 claims
- 4467US6941701B2Side sliding door device for vehicleFUJI ELECTRIC SYSTEMS CO LTD·Filed 2003·Granted Sep 13, 2005·18 cites·5 claims
- 4566US7863151B2Method for manufacturing semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2009·Granted Jan 4, 2011·3 cites·7 claims
- 4666US7859083B2Semiconductor deviceFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Dec 28, 2010·3 cites·13 claims
- 4765US7897452B2Method of producing a semiconductor device with an aluminum or aluminum alloy rear electrodeFUJI ELECTRIC SYSTEMS CO LTD·Filed 2006·Granted Mar 1, 2011·2 cites·15 claims
- 4865US7773400B2Inverter driving circuit an inverter control circuitFUJI ELECTRIC SYSTEMS CO LTD·Filed 2007·Granted Aug 10, 2010·7 cites·8 claims
- 4965US6888335B2Method and system for controlling vehicle door position in response to detection of abnormal operationFUJI ELECTRIC SYSTEMS CO LTD·Filed 2004·Granted May 3, 2005·11 cites·20 claims
- 5064US7906926B2Door drive control apparatus and door drive control methodFUJI ELECTRIC SYSTEMS CO LTD·Filed 2008·Granted Mar 15, 2011·5 cites·14 claims
Showing the top 50 of 103 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when FUJI ELECTRIC SYSTEMS CO LTD files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →