Inventor
KAWAHARA YOUHEI
JP33 patents
⚠️ This page may combine multiple inventors who share the name “KAWAHARA YOUHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI VEHICLE ENERGY LTD
6 patentsUS7911178B2Mar 22, 2011
Battery apparatus, battery control apparatus, and motor drive unit
HITACHI VEHICLE ENERGY LTD18 citations92
US7710073B2May 4, 2010
Secondary battery module, battery information management device, battery information management system, secondary battery reuse system, secondary battery recovery and sales system, secondary battery reuse method, and secondary battery recovery and sales method
HITACHI VEHICLE ENERGY LTD37 citations92
US7622894B2Nov 24, 2009
Status detector for power supply, power supply, and initial characteristic extracting device for use with power supply
HITACHI VEHICLE ENERGY LTD30 citations92
US7514905B2Apr 7, 2009
Battery management system
HITACHI VEHICLE ENERGY LTD17 citations92
US8054045B2Nov 8, 2011
Status detector for power supply, power supply, and initial characteristic extracting device for use with power supply
HITACHI VEHICLE ENERGY LTD16 citations84
US8004239B2Aug 23, 2011
Battery management system for calculating charge and disharge powers
HITACHI VEHICLE ENERGY LTD7 citations84
KAWAHARA YOUHEI
5 patentsUS8798832B2Aug 5, 2014
Electric storage device
KAWAHARA YOUHEI79 citations97
US8736229B2May 27, 2014
Battery control circuit for reducing power consumption
KAWAHARA YOUHEI17 citations92
US8947023B2Feb 3, 2015
Battery control device and motor drive system
KAWAHARA YOUHEI11 citations83
US8466708B2Jun 18, 2013
State detection device for power supply system
KAWAHARA YOUHEI11 citations83
US9293937B2Mar 22, 2016
Electric storage device
KAWAHARA YOUHEI9 citations81
EMORI AKIHIKO
4 patentsUS8212571B2Jul 3, 2012
Vehicle power supply device
EMORI AKIHIKO61 citations98
US8159184B2Apr 17, 2012
Automotive power supply system
EMORI AKIHIKO48 citations94
US8426047B2Apr 23, 2013
Multi-series battery control system
EMORI AKIHIKO17 citations84
US9748537B2Aug 29, 2017
Storage battery apparatus
EMORI AKIHIKO2 citations72
HITACHI AUTOMOTIVE SYSTEMS LTD
4 patentsUS10147983B2Dec 4, 2018
Secondary battery system
HITACHI AUTOMOTIVE SYSTEMS LTD15 citations84
US9356451B2May 31, 2016
Battery control circuit having multiple adjusting units
HITACHI AUTOMOTIVE SYSTEMS LTD13 citations84
US10591550B2Mar 17, 2020
Secondary-battery monitoring device and prediction method of battery capacity of secondary battery
HITACHI AUTOMOTIVE SYSTEMS LTD3 citations73
US9689926B2Jun 27, 2017
Battery controlling using charge state calculator and charge state verifier
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations48
OHKAWA KEIICHIRO
3 patentsUS9641011B2May 2, 2017
Battery control device adapting the battery current limit by decreasing the stored current limit by comparing it with the measured battery current
OHKAWA KEIICHIRO4 citations71
US9252602B2Feb 2, 2016
Electric storage cell control circuit
OHKAWA KEIICHIRO4 citations71
US9252624B2Feb 2, 2016
Battery control device and battery system
OHKAWA KEIICHIRO0 citations40
YAMAUCHI SHUKO
2 patentsUS8299757B2Oct 30, 2012
Secondary battery module, battery information management device, battery information management system, secondary battery reuse system, secondary battery recovery and sales system, secondary battery reuse method, and secondary battery recovery and sales method
YAMAUCHI SHUKO63 citations96
US9397374B2Jul 19, 2016
Secondary battery module, battery information management device, battery information management system, secondary battery reuse system, secondary battery recovery and sales system, secondary battery reuse method, and secondary battery recovery and sales method
YAMAUCHI SHUKO5 citations82
HITACHI LTD
2 patentsVEHICLE ENERGY JAPAN INC
2 patentsUS10725111B2Jul 28, 2020
Battery state detection device, secondary battery system, program product, and battery state detection method
VEHICLE ENERGY JAPAN INC3 citations72
US10686229B2Jun 16, 2020
Battery state detection device, secondary battery system, program product, and battery state detection method
VEHICLE ENERGY JAPAN INC1 citations62