Inventor · disambiguated record
Kohji Yoshii
Also filed as: YOSHII KOHJI
16 granted patents·2 pending applications·277 citations·filing 2000–2024
93Inventor score
Top patents by PatentIndex Score
18 records- 0196US6236194B1Constant voltage power supply with normal and standby modesRICOH KK·Filed 2000·Granted May 22, 2001·122 cites·8 claims
- 0292US7368896B2Voltage regulator with plural error amplifiersRICOH KK·Filed 2005·Granted May 6, 2008·29 cites·7 claims
- 0380US7002329B2Voltage regulator using two operational amplifiers in current consumptionRICOH KK·Filed 2002·Granted Feb 21, 2006·29 cites·10 claims
- 0474US7215180B2Constant voltage circuitRICOH KK·Filed 2004·Granted May 8, 2007·20 cites·27 claims
- 0574US7148665B2Power supplying methods and apparatus that provide stable output voltageRICOH KK·Filed 2003·Granted Dec 12, 2006·22 cites·17 claims
- 0671US7831851B2Switching regulatorRICOH KK·Filed 2005·Granted Nov 9, 2010·11 cites·10 claims
- 0771US7755395B2Inverter circuitRICOH KK·Filed 2009·Granted Jul 13, 2010·6 cites·4 claims
- 0870US2025085731A1Constant voltage generator circuit operating at low voltage potential difference between input voltage and output voltageNISSHINBO MICRO DEVICES INC·Filed 2024·Application pending·0 cites
- 0969US7541787B2Transistor drive circuit, constant voltage circuit, and method thereof using a plurality of error amplifying circuits to effectively drive a power transistorRICOH KK·Filed 2006·Granted Jun 2, 2009·8 cites·17 claims
- 1062US8253404B2Constant voltage circuitYOSHII KOHJI·Filed 2008·Granted Aug 28, 2012·6 cites·8 claims
- 1160USRE39374EConstant voltage power supply with normal and standby modesRICOH KK·Filed 2003·Granted Nov 7, 2006·11 cites·13 claims
- 1258US7209770B2Power supply IC having switching regulator and series regulatorRICOH KK·Filed 2003·Granted Apr 24, 2007·12 cites·13 claims
- 1356US12204355B2Constant voltage generator circuit operating at low voltage potential difference between input voltage and output voltageNISSHINBO MICRO DEVICES INC·Filed 2021·Granted Jan 21, 2025·0 cites·12 claims
- 1444US8446215B2Constant voltage circuitNAGATA TOSHIHISA·Filed 2007·Granted May 21, 2013·1 cites·3 claims
- 1542US7948223B2Constant voltage circuit using plural error amplifiers to improve response speedRICOH CO LTD·Filed 2008·Granted May 24, 2011·0 cites·5 claims
- 1640US7856253B2Power supply IC having switching regulator and series regulatorRICOH CO LTD·Filed 2007·Granted Dec 21, 2010·0 cites·14 claims
- 1740US7709899B2Semiconductor apparatusRICOH KK·Filed 2005·Granted May 4, 2010·0 cites·10 claims
- 1832US2008197829A1Semiconductor Device and Voltage Regulator Using the Semiconductor DeviceNAGATA TOSHIHISA·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →