Inventor · disambiguated record
Koji Umetsu
Also filed as: UMETSU KOJI
34 granted patents·425 citations·filing 1991–2020
97Inventor score
Top patents by PatentIndex Score
34 records- 0193US9728821B2Power storage apparatus and electric vehicleSONY CORP·Filed 2015·Granted Aug 8, 2017·4 cites·17 claims
- 0293US9669723B2Power storage device, power system and electric vehicleSONY CORP·Filed 2013·Granted Jun 6, 2017·17 cites·24 claims
- 0391US9231280B2Power storage apparatus and electric vehicleKOMATSU YOSHIHIRO·Filed 2012·Granted Jan 5, 2016·7 cites·27 claims
- 0489US9705341B2Electric storage apparatus, electronic device, electric vehicle, and electric power system including a magnetic coreKOMATSU YOSHIHIRO·Filed 2012·Granted Jul 11, 2017·17 cites·37 claims
- 0588US10008862B2Power storage device, power storage system, and control method of power storage deviceMURATA MANUFACTURING CO·Filed 2014·Granted Jun 26, 2018·17 cites·15 claims
- 0683US9608451B2Electric power supplying apparatus, electric power supplying method, inverter, and electric vehicleSONY CORP·Filed 2013·Granted Mar 28, 2017·9 cites·13 claims
- 0782US10523027B2Power supply apparatus and power supply methodSONY CORP·Filed 2015·Granted Dec 31, 2019·4 cites·8 claims
- 0882US9620968B2Power reserve apparatus, power system, and electric vehicleSONY CORP·Filed 2012·Granted Apr 11, 2017·7 cites·18 claims
- 0981US10069311B2Power storage device and method of controlling power storage deviceMURATA MANUFACTURING CO·Filed 2014·Granted Sep 4, 2018·8 cites·8 claims
- 1081US5408170ADevice for charging a secondary battery having interrupt means to prevent overchargingSONY CORP·Filed 1993·Granted Apr 18, 1995·92 cites·11 claims
- 1178US9046585B2Monitoring apparatus, monitoring control apparatus, power supply apparatus, monitoring method, monitoring control method, power storage system, electronic apparatus, motor-driven vehicle, and electric power systemSUGENO NAOYUKI·Filed 2012·Granted Jun 2, 2015·7 cites·14 claims
- 1276US10020662B2Electric storage apparatus, electronic device, electric vehicle, and electric power systemSONY CORP·Filed 2017·Granted Jul 10, 2018·2 cites·20 claims
- 1376US9878634B2Power reserve apparatus, power system, and electric vehicleSONY CORP·Filed 2017·Granted Jan 30, 2018·2 cites·9 claims
- 1474US10587127B2Charging device, charging control method, electricity storage device, power storage device, power system, and electric vehicleMURATA MANUFACTURING CO·Filed 2015·Granted Mar 10, 2020·3 cites·15 claims
- 1573US7999511B2Battery chargerSONY CORP·Filed 2008·Granted Aug 16, 2011·11 cites·5 claims
- 1671US8264198B2Battery pack, battery charger and charging method having multiple charging modesSATO MASANAO·Filed 2008·Granted Sep 11, 2012·10 cites·20 claims
- 1768US10164298B2Power storage device, control method, control device, power storage system, maintenance system, electric vehicle, and electronic equipmentSONY CORP·Filed 2015·Granted Dec 25, 2018·2 cites·16 claims
- 1868US5172044AMulti-rate constant voltage battery charger with displaySONY CORP·Filed 1991·Granted Dec 15, 1992·52 cites·6 claims
- 1967US8035347B2Battery chargerSONY CORP·Filed 2008·Granted Oct 11, 2011·7 cites·4 claims
- 2067US6525947B2Power supply apparatus and power supply systemSONY CORP·Filed 2001·Granted Feb 25, 2003·20 cites·8 claims
- 2165US10056773B2Battery control device, control method, control system and electric vehicleMURATA MANUFACTURING CO·Filed 2013·Granted Aug 21, 2018·2 cites·24 claims
- 2263US6229723B1Power unit and power supply system with a comparison circuit for a reverse flow preventative diodeSONY CORP·Filed 2000·Granted May 8, 2001·18 cites·6 claims
- 2362US5923149ACharging apparatusSONY CORP·Filed 1997·Granted Jul 13, 1999·40 cites·4 claims
- 2460US8179101B2Charging apparatusUMETSU KOJI·Filed 2009·Granted May 15, 2012·5 cites·5 claims
- 2559US11594903B2Power storage system and container type power storage systemMURATA MANUFACTURING CO·Filed 2020·Granted Feb 28, 2023·0 cites·13 claims
- 2659US7035121B2Switching power supply apparatusSONY CORP·Filed 2004·Granted Apr 25, 2006·13 cites·3 claims
- 2758US10916948B2Power control apparatus and power control methodMURATA MANUFACTURING CO·Filed 2019·Granted Feb 9, 2021·0 cites·16 claims
- 2855US10361575B2Power storage module, power storage apparatus, power storage system, control method, electronic apparatus, electric vehicle, and electric power systemMURATA MANUFACTURING CO·Filed 2015·Granted Jul 23, 2019·0 cites·13 claims
- 2953US9952287B2Monitoring apparatus, monitoring control apparatus, power supply apparatus, monitoring method, monitoring control method, power storage system, electronic apparatus, motor-driven vehicle, and electric power systemSONY CORP·Filed 2015·Granted Apr 24, 2018·0 cites·20 claims
- 3046US5440220ABattery discharge control circuitSONY CORP·Filed 1994·Granted Aug 8, 1995·20 cites·12 claims
- 3143US8098052B2Battery chargerUMETSU KOJI·Filed 2008·Granted Jan 17, 2012·0 cites·6 claims
- 3243US6005371ACharging apparatusSONY CORP·Filed 1998·Granted Dec 21, 1999·17 cites·8 claims
- 3341US8942011B2Power supply apparatus and image forming apparatusKATO TAKAHIRO·Filed 2012·Granted Jan 27, 2015·0 cites·17 claims
- 3438US5923150ACharging apparatusSONY CORP·Filed 1997·Granted Jul 13, 1999·12 cites·19 claims
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