Inventor
NORIMATSU YASUAKI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “NORIMATSU YASUAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
17 patentsUS7883808B2Feb 8, 2011
Power supply apparatus with fuel cell and method of controlling the same
HITACHI LTD152 citations98
US7667350B2Feb 23, 2010
Electric power source apparatus using fuel cell and method of controlling the same
HITACHI LTD15 citations84
US7728545B2Jun 1, 2010
Equipment with a built-in fuel cell
HITACHI LTD14 citations82
US7626353B2Dec 1, 2009
Mobile type information terminal and self diagnosis method and operation method thereof
HITACHI LTD14 citations80
US7846568B2Dec 7, 2010
Power supply and control method therefor
HITACHI LTD7 citations74
US7692400B2Apr 6, 2010
Mobile type power supply, connection device, and carried type electronic equipment
HITACHI LTD7 citations73
US11217385B2Jan 4, 2022
Transformer and electric power converter
HITACHI LTD2 citations72
US10615715B2Apr 7, 2020
Power conversion device, cooling structure, power conversion system, and power supply device
HITACHI LTD2 citations70
US7876069B2Jan 25, 2011
Electrical power unit
HITACHI LTD4 citations63
US11018528B2May 25, 2021
Wireless power transmission/reception system, power conversion device including the same, and power conversion method
HITACHI LTD1 citations62
US7977001B2Jul 12, 2011
Electronic equipment with fuel cell-power supply unit
HITACHI LTD2 citations56
US7766032B2Aug 3, 2010
Fuel container for fuel cell
HITACHI LTD1 citations52
US9750125B2Aug 29, 2017
Power supply apparatus
HITACHI LTD0 citations51
US10862311B2Dec 8, 2020
Power conversion device and method for controlling power conversion device
HITACHI LTD0 citations40
US9887638B2Feb 6, 2018
Power conversion apparatus with frequency operation change based on input voltage
HITACHI LTD0 citations40
US9806622B2Oct 31, 2017
Power conversion device and power conversion control method for the same
HITACHI LTD0 citations40
US10530271B2Jan 7, 2020
Power conversion device and power conversion system
HITACHI LTD0 citations39