P

Inventor

NAGANUMA YOSHIAKI

JP55 patents
⚠️ This page may combine multiple inventors who share the name “NAGANUMA YOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOYOTA MOTOR CO LTD

30 patents
US7976067B2Jul 12, 2011

Gas fuel tank-equipped vehicle

TOYOTA MOTOR CO LTD45 citations93
US10483572B2Nov 19, 2019

Flow control method of cooling medium in a fuel cell system, and fuel cell system

TOYOTA MOTOR CO LTD2 citations73
US9819035B2Nov 14, 2017

Fuel cell system

TOYOTA MOTOR CO LTD2 citations73
US10388974B2Aug 20, 2019

Fuel cell system and emergency stop method

TOYOTA MOTOR CO LTD3 citations72
US12172516B2Dec 24, 2024

Attachment for fuel inlet of vehicle

TOYOTA MOTOR CO LTD0 citations62
US12157363B2Dec 3, 2024

Vehicle comprising fuel inlet

TOYOTA MOTOR CO LTD0 citations62
US10312532B2Jun 4, 2019

Residual water scavenging processing method in fuel cell system and fuel cell system

TOYOTA MOTOR CO LTD1 citations62
US12489124B2Dec 2, 2025

Fuel cell system

TOYOTA MOTOR CO LTD0 citations52
US10074865B2Sep 11, 2018

Fuel cell system and fuel cell system control method

TOYOTA MOTOR CO LTD0 citations52
US9825317B2Nov 21, 2017

Fuel cell system and control method of the same

TOYOTA MOTOR CO LTD0 citations52
US9793561B2Oct 17, 2017

Fuel cell system and control method of fuel cell system

TOYOTA MOTOR CO LTD0 citations52
US8383279B2Feb 26, 2013

Fuel cell system and method for calculating circulation ratio in the same

TOYOTA MOTOR CO LTD0 citations52
US11050072B2Jun 29, 2021

Fuel cell system and operation control method of the same

TOYOTA MOTOR CO LTD0 citations51
US9509005B2Nov 29, 2016

Fuel cell system

TOYOTA MOTOR CO LTD1 citations50
US10629927B2Apr 21, 2020

Fuel cell system and method for discharging fluid in the system

TOYOTA MOTOR CO LTD0 citations42
US10340542B2Jul 2, 2019

Fuel cell system and control method of fuel cell

TOYOTA MOTOR CO LTD0 citations42
US8361667B2Jan 29, 2013

Fuel cell system and its control method

TOYOTA MOTOR CO LTD0 citations42
US10777827B2Sep 15, 2020

Water drainage device for fuel cell, fuel cell system, moving body and control method of fuel cell system

TOYOTA MOTOR CO LTD0 citations41
US10714770B2Jul 14, 2020

Fuel cell system

TOYOTA MOTOR CO LTD0 citations41
US10476092B2Nov 12, 2019

Fuel cell system, fuel cell mountable vehicle and method of controlling fuel cell system

TOYOTA MOTOR CO LTD0 citations41
US10381668B2Aug 13, 2019

Operation control method of fuel cell and operation control apparatus of fuel cell

TOYOTA MOTOR CO LTD0 citations41
US10312535B2Jun 4, 2019

Fuel cell system including control of rotation speed of a gas pump

TOYOTA MOTOR CO LTD0 citations41
US10224558B2Mar 5, 2019

Fuel cell system and operation control method of the same

TOYOTA MOTOR CO LTD0 citations41
US10135082B2Nov 20, 2018

Fuel cell system and control method of fuel cell system

TOYOTA MOTOR CO LTD0 citations41
US9991533B2Jun 5, 2018

Fuel cell system

TOYOTA MOTOR CO LTD0 citations41
US9991528B2Jun 5, 2018

Fuel cell system

TOYOTA MOTOR CO LTD0 citations41
US9941530B2Apr 10, 2018

Fuel cell system including water content estimation

TOYOTA MOTOR CO LTD0 citations41
US9941532B2Apr 10, 2018

Fuel cell system and control method of fuel cell system

TOYOTA MOTOR CO LTD0 citations41
US9899690B2Feb 20, 2018

Method of discharging water from fuel cell and fuel cell system

TOYOTA MOTOR CO LTD0 citations41
US9880567B2Jan 30, 2018

Valve control apparatus and valve control method

TOYOTA MOTOR CO LTD0 citations41

NAGANUMA YOSHIAKI

7 patents

IMANISHI HIROYUKI

2 patents

CIBA SC HOLDING AG

1 patent

CIBA GEIGY CORP

1 patent

KANIE NAOKI

1 patent

MIZUNO HIDEAKI

1 patent

SAKAJO YUICHI

1 patent

SUEMATSU KEIGO

1 patent

HASUKA YOSHINOBU

1 patent

TANAKA HIROMI

1 patent

TSUCHIYA NAOHISA

1 patent

MIZUNO NOBUKAZU

1 patent

KAKENO YUJI

1 patent

Showing the top 50 of 55 patents by PatentIndex Score.