Inventor
TAKAGI YUSUKE
JP50 patents
⚠️ This page may combine multiple inventors who share the name “TAKAGI YUSUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI AUTOMOTIVE SYSTEMS LTD
14 patentsUS10348214B2Jul 9, 2019
Power module, power converter device, and electrically powered vehicle
HITACHI AUTOMOTIVE SYSTEMS LTD13 citations92
US10034401B2Jul 24, 2018
Power semiconductor device and power conversion device
HITACHI AUTOMOTIVE SYSTEMS LTD6 citations84
US9729076B2Aug 8, 2017
Power module, power converter device, and electrically powered vehicle
HITACHI AUTOMOTIVE SYSTEMS LTD5 citations84
US9407163B2Aug 2, 2016
Power module, power converter device, and electrically powered vehicle
HITACHI AUTOMOTIVE SYSTEMS LTD4 citations84
US11432419B2Aug 30, 2022
Power semiconductor device and power conversion device
HITACHI AUTOMOTIVE SYSTEMS LTD1 citations73
US10512181B2Dec 17, 2019
Power semiconductor device and power conversion device
HITACHI AUTOMOTIVE SYSTEMS LTD1 citations73
US10279653B2May 7, 2019
Power converter
HITACHI AUTOMOTIVE SYSTEMS LTD6 citations73
US10037930B2Jul 31, 2018
Power semiconductor module and manufacturing method of power semiconductor module
HITACHI AUTOMOTIVE SYSTEMS LTD6 citations73
US9497873B2Nov 15, 2016
Power module including first and second sealing resins
HITACHI AUTOMOTIVE SYSTEMS LTD4 citations73
USD759589SJun 21, 2016
Power module for power inverter
HITACHI AUTOMOTIVE SYSTEMS LTD3 citations72
US11482476B2Oct 25, 2022
Power semiconductor device with an element installation conductor
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations62
US10615102B2Apr 7, 2020
Power semiconductor module
HITACHI AUTOMOTIVE SYSTEMS LTD1 citations59
USD769189SOct 18, 2016
Power module for power inverter
HITACHI AUTOMOTIVE SYSTEMS LTD1 citations51
US9960147B2May 1, 2018
Power module
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations42
NISSAN MOTOR
8 patentsUS6877466B2Apr 12, 2005
Variable valve operating system for internal combustion engine
NISSAN MOTOR22 citations92
US9476366B2Oct 25, 2016
Control device and control method for variable compression ratio internal combustion engines
NISSAN MOTOR7 citations84
US8726858B2May 20, 2014
Variable compression ratio internal combustion engine
NISSAN MOTOR19 citations84
US9422872B2Aug 23, 2016
Variable compression ratio internal combustion engine
NISSAN MOTOR3 citations73
US10054064B2Aug 21, 2018
Actuator mounting structure for internal-combustion engine having variable compression ratio
NISSAN MOTOR1 citations52
US7055477B2Jun 6, 2006
Valve actuation apparatus for internal combustion engine and method of adjusting lift thereof
NISSAN MOTOR0 citations52
US7685979B2Mar 30, 2010
Variable valve timing mechanism for internal combustion engine
NISSAN MOTOR1 citations51
US9169775B2Oct 27, 2015
Multi-link internal combustion engine
NISSAN MOTOR0 citations42
HITACHI ASTEMO LTD
8 patentsUS11139748B2Oct 5, 2021
Power module, power converter device, and electrically powered vehicle
HITACHI ASTEMO LTD4 citations84
US12588171B2Mar 24, 2026
Heat exchange device and power conversion device
HITACHI ASTEMO LTD0 citations62
US12368386B2Jul 22, 2025
Power conversion device and method for manufacturing power conversion device
HITACHI ASTEMO LTD0 citations62
US12283536B2Apr 22, 2025
Power semiconductor device and manufacturing method of power semiconductor device
HITACHI ASTEMO LTD0 citations62
US12519045B2Jan 6, 2026
Semiconductor device with first and second conductors and plated layer and method for manufacturing semiconductor device
HITACHI ASTEMO LTD0 citations57
US11929307B2Mar 12, 2024
Plurality of lead frames for cooling a power device
HITACHI ASTEMO LTD1 citations53
US12506133B2Dec 23, 2025
Electric circuit body, power conversion device, and method for manufacturing electric circuit body
HITACHI ASTEMO LTD0 citations52
US12424508B2Sep 23, 2025
Power module
HITACHI ASTEMO LTD0 citations52
DENSO CORP
5 patentsUS10962309B2Mar 30, 2021
Stacked heat exchanger
DENSO CORP2 citations70
US11820199B2Nov 21, 2023
Heat exchanger
DENSO CORP0 citations49
US12163744B2Dec 10, 2024
Heat exchanger
DENSO CORP0 citations47
US12209814B2Jan 28, 2025
Heat exchanger having a swirling component
DENSO CORP0 citations45
US12007183B2Jun 11, 2024
Heat exchanger
DENSO CORP0 citations45
HITACHI LTD
3 patentsUS4989626AFeb 5, 1991
Apparatus for and method of controlling the opening and closing of channel for liquid
HITACHI LTD286 citations98
US5101848AApr 7, 1992
Shut off apparatus for a fluid passage, method for controlling the same, and method for confirming closing of the same
HITACHI LTD51 citations95
US4721388AJan 26, 1988
Method of measuring shape of object in non-contacting manner
HITACHI LTD122 citations93