Inventor
HASEGAWA SHIGEKI
JP46 patents
⚠️ This page may combine multiple inventors who share the name “HASEGAWA SHIGEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA MOTOR CO LTD
27 patentsUS10714769B2Jul 14, 2020
Fuel cell system with cathode purging
TOYOTA MOTOR CO LTD2 citations72
US11088386B2Aug 10, 2021
Fuel cell monitoring device and method of determining state of fuel cell
TOYOTA MOTOR CO LTD2 citations68
US12362373B2Jul 15, 2025
Fuel gas supply system for fuel cell and method of controlling fuel gas supply system
TOYOTA MOTOR CO LTD0 citations52
US11757118B2Sep 12, 2023
Fuel cell system and method of controlling fuel cell
TOYOTA MOTOR CO LTD0 citations50
US11296334B2Apr 5, 2022
Fuel cell system
TOYOTA MOTOR CO LTD0 citations50
US11223057B2Jan 11, 2022
Fuel cell system
TOYOTA MOTOR CO LTD0 citations50
US11611094B2Mar 21, 2023
Fuel cell system and method of controlling fuel cell system
TOYOTA MOTOR CO LTD0 citations49
US11217803B2Jan 4, 2022
Fuel cell system and method for inferring wet state of fuel cell
TOYOTA MOTOR CO LTD0 citations49
US11081715B2Aug 3, 2021
Fuel cell system
TOYOTA MOTOR CO LTD0 citations49
US10892500B2Jan 12, 2021
Fuel cell system
TOYOTA MOTOR CO LTD0 citations49
US11705565B2Jul 18, 2023
Fuel cell system
TOYOTA MOTOR CO LTD0 citations48
US11569516B2Jan 31, 2023
Fuel cell system
TOYOTA MOTOR CO LTD0 citations48
US11456469B2Sep 27, 2022
Fuel cell system
TOYOTA MOTOR CO LTD0 citations48
US11362355B2Jun 14, 2022
Fuel cell system and anode off-gas discharge amount estimation system
TOYOTA MOTOR CO LTD0 citations48
US11152630B2Oct 19, 2021
Fuel cell system
TOYOTA MOTOR CO LTD0 citations48
US11837762B2Dec 5, 2023
Fuel cell system
TOYOTA MOTOR CO LTD0 citations45
US10811708B2Oct 20, 2020
Fuel cell system and control method thereof
TOYOTA MOTOR CO LTD0 citations42
US10714775B2Jul 14, 2020
Fuel cell system
TOYOTA MOTOR CO LTD0 citations42
US10424796B2Sep 24, 2019
Fuel cell system
TOYOTA MOTOR CO LTD0 citations41
US10122035B2Nov 6, 2018
Fuel cell system
TOYOTA MOTOR CO LTD0 citations41
US10290883B2May 14, 2019
Fuel cell system and method of control of same
TOYOTA MOTOR CO LTD0 citations40
US9954234B2Apr 24, 2018
Fuel cell system and control method thereof
TOYOTA MOTOR CO LTD0 citations40
US10879546B2Dec 29, 2020
Fuel cell system and control method of fuel cell system
TOYOTA MOTOR CO LTD0 citations39
US10069159B2Sep 4, 2018
Fuel cell system
TOYOTA MOTOR CO LTD0 citations39
US10180462B2Jan 15, 2019
Diagnostic device
TOYOTA MOTOR CO LTD0 citations36
US8980038B2Mar 17, 2015
Method for producing membrane electrode assembly
TOYOTA MOTOR CO LTD0 citations36
US10276882B2Apr 30, 2019
Fuel cell system and method for controlling fuel cell system
TOYOTA MOTOR CO LTD0 citations34
TOYOTA ENG & MFG NORTH AMERICA
12 patentsUS11094950B2Aug 17, 2021
Equation based state estimator for cooling system controller
TOYOTA ENG & MFG NORTH AMERICA2 citations72
US10777831B2Sep 15, 2020
Equation based cooling system control strategy/method
TOYOTA ENG & MFG NORTH AMERICA1 citations61
US10720655B2Jul 21, 2020
Partial derivative based feedback controls for pid
TOYOTA ENG & MFG NORTH AMERICA1 citations61
US11450871B2Sep 20, 2022
Air supply control method to fuel cell system
TOYOTA ENG & MFG NORTH AMERICA0 citations58
US10916788B2Feb 9, 2021
Hydrogen supply system low pressure state estimator
TOYOTA ENG & MFG NORTH AMERICA0 citations57
US11482719B2Oct 25, 2022
Equation based state estimate for air system controller
TOYOTA ENG & MFG NORTH AMERICA0 citations50
US10971748B2Apr 6, 2021
Implementation of feedforward and feedback control in state mediator
TOYOTA ENG & MFG NORTH AMERICA0 citations50
US10862143B2Dec 8, 2020
Turbo compressor path and rate control
TOYOTA ENG & MFG NORTH AMERICA0 citations49
US11710838B2Jul 25, 2023
Air system pressure observer control method for fuel cell system
TOYOTA ENG & MFG NORTH AMERICA0 citations48
US11548408B2Jan 10, 2023
Control systems and methods to meet fuel cell fuel demand
TOYOTA ENG & MFG NORTH AMERICA0 citations48
US10714773B2Jul 14, 2020
Cooling system dT/dt based control
TOYOTA ENG & MFG NORTH AMERICA0 citations40
US10547070B2Jan 28, 2020
STL actuation-path planning
TOYOTA ENG & MFG NORTH AMERICA0 citations39
HASEGAWA SHIGEKI
6 patentsUS8765324B2Jul 1, 2014
Method for manufacturing membrane electrode assembly and solid polymer electrolyte fuel cell
HASEGAWA SHIGEKI2 citations61
US9991529B2Jun 5, 2018
Fuel cell system and operating method of a fuel cell
HASEGAWA SHIGEKI1 citations51
US9203101B2Dec 1, 2015
Method of manufacturing fuel cell
HASEGAWA SHIGEKI0 citations50
US9692058B2Jun 27, 2017
Electrode for fuel cell and production method of electrode for fuel cell, membrane electrode assembly and fuel cell
HASEGAWA SHIGEKI0 citations48
US9496560B2Nov 15, 2016
Fuel cell production method
HASEGAWA SHIGEKI0 citations40
US9833770B2Dec 5, 2017
Catalyst production method, electrode catalyst for fuel cell produced by this method, and catalyst production apparatus
HASEGAWA SHIGEKI0 citations38