Inventor · disambiguated record
Toshiyuki Matsuyama
Also filed as: MATSUYAMA TOSHIYUKI
14 granted patents·522 citations·filing 1997–2005
95Inventor score
Files withFUJITSU LTD14
Top patents by PatentIndex Score
14 records- 0194US6400209B1Switch circuit with back gate voltage control and series regulatorFUJITSU LTD·Filed 2000·Granted Jun 4, 2002·80 cites·11 claims
- 0283US6452364B1Battery charge control circuit, battery charging device, and battery charge control methodFUJITSU LTD·Filed 2000·Granted Sep 17, 2002·53 cites·70 claims
- 0382US6420858B1DC-to-DC converter circuit having a power saving modeFUJITSU LTD·Filed 1999·Granted Jul 16, 2002·64 cites·23 claims
- 0480US6337563B2DC-DC converter and semicondutor integrated circuit device for DC-DC converterFUJITSU LTD·Filed 2001·Granted Jan 8, 2002·49 cites·13 claims
- 0578US6320359B1DC-DC converter and controller for detecting a malfunction thereinFUJITSU LTD·Filed 2000·Granted Nov 20, 2001·38 cites·19 claims
- 0673US6664772B2DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereonFUJITSU LTD·Filed 2001·Granted Dec 16, 2003·19 cites·33 claims
- 0773US6194875B1Controller for DC-DC converterFUJITSU LTD·Filed 1999·Granted Feb 27, 2001·62 cites·21 claims
- 0873US6147477ADC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereonFUJITSU LTD·Filed 1997·Granted Nov 14, 2000·32 cites·41 claims
- 0970US6828764B2Regulator circuit and control method thereofFUJITSU LTD·Filed 2002·Granted Dec 7, 2004·25 cites·22 claims
- 1070US5966003ADC-DC converter control circuitFUJITSU LTD·Filed 1998·Granted Oct 12, 1999·41 cites·29 claims
- 1165US6025706AMethod for controlling the output voltage of a DC-DC converterFUJITSU LTD·Filed 1999·Granted Feb 15, 2000·32 cites·29 claims
- 1261US6911806B2DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereonFUJITSU LTD·Filed 2003·Granted Jun 28, 2005·10 cites·13 claims
- 1361US6674657B2Overvoltage-protective device for power system, AC/DC converter and DC/DC converter constituting the power systemFUJITSU LTD·Filed 2002·Granted Jan 6, 2004·16 cites·17 claims
- 1450US7129682B2DC to DC converter producing output voltage exhibit rise and fall characteristics independent of load thereonFUJITSU LTD·Filed 2005·Granted Oct 31, 2006·1 cites·11 claims
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